MatCom-ComMat: Materials Compounds from Composite Materials for Applications in Extreme Conditions

The main scope of the RTG relates to the development, characterization and modelling of novel, revolutionary multi-phase composite systems capable of withstanding temperatures substantially beyond 1300°C and harsh environmental conditions (e.g., oxidative, corrosive, erosive atmospheres) as far as mechanical behaviour, environmental resistance and durability are concerned. This will be achieved via a materials combination consisting of metallic/intermetallic alloys based on refractory metal silicide systems (e.g. Mo-Si-B-X, X = Nb, Fe, Ti, Hf…) as substrates and polymer-derived ceramic nanocomposites based on Si(M)CY (M = B, Zr, Hf and Y = O, N) as materials of choice for graded coatings. The metallic/intermetallic alloys may provide adequate deformability and toughness at ambient temperatures combined with excellent high-temperature microstructural stability and creep resistance, whereas the graded polymer derived ceramic nanocomposite coatings will also offer self-healing capability in addition to extremely low intrinsic thermal conductivities and excellent stability in aggressive operation conditions, respectively. Beside their unique property combinations, the two materials classes are highly attractive because of the possibility to adjust their coefficients of thermal expansion to perfectly match one another and consequently to keep thermomechanical stresses in the target multi-layered systems at a minimum. This may give rise to an extended lifetime of components in foreseen application.

Our principle investigators, PhD students and associated members can be found here.

rtg2561iam-wk
Review of the Continuation Proposal of RTG2561

Last Thursday and Friday (February, 1st and 2nd), the Deutsche Forschungsgemeinschaft and external reviewers were guest at KIT to assess the activities and the continuation proposal of RTG2561 “MatCom-ComMat: Materials Compounds from Composite Materials for Applications in Extreme Conditions”. The doctoral students and principal investigators from Karlsruher Institut für Technologie, Technische Universität Darmstadt and DECHEMA Forschungsinstitut presented their work in the form of presentations and posters as well as discussions with the review panel.

We thank Carolin König and Stefan Wagner for the preparation of the defense, our PhD students presenting their work in the form of talks, Nathalie Thor, Frauke Hinrichs, Mozhdeh Fathidoost, and Jurica Filipovic as well as all other contributors and eagerly wait for the final decision on May 8th.

IMG-20240126-WA0003
Successful Doctoral Defense of Nathalie Thor (P3)

We congratulate Nathalie Thor for successfully defending her PhD thesis. She was awarded the doctorate for her thesis on “Process Optimization for Si(Hf,Ta)(B)(C,N) polymer-derived ceramics via microstructural analysis”.

In the framework of RTG2561, funded by DFG, she contributed to our work on the characterization of novel Si-based polymer-derived ceramics nanocomposites (PDC-NCs) for potential high temperature applications.

The major scope of her thesis work was to guide the process optimization of novel refractory metal-containing polymer-derived ceramics nanocomposites by a microstructural enhancement. She successfully unraveled the microstructure evolution of polysilazane and polycarbosilane-based PDC-NCs upon different heat treatments as well as sintering parameters and developed a comprehensive comparison between ceramic powders and bulk ceramics.

In the first period she successfully developed a sample preparation in order to analyze a novel as-pyrolyzed and heat-treated polysilazane-based ceramic via different electron microscopic methods, such as SEM and TEM. This ceramic was tailored on a molecular level with different molar ratios of Hafnium and Tantalum and underwent crystallization and phase separation. She was able to show in great detail that local decomposition in surface-near regions and the corresponding transition metal carbide particle coarsening is an active and characteristic mechanism upon high-temperature annealing in these material classes:

https://doi.org/10.1016/j.jeurceramsoc.2022.11.060

In the final period of her thesis, Nathalie focused on the detailed understanding of the microstructure development of a novel monolithic polycarbosilane-based PDC-NC with and without the addition of boron. The addition of boron brought further improvements in the desired tailoring of the microstructure in advanced novel Si-based bulk ceramics for high-temperature applications.

We wish Nathalie all the best for her further career and look forward to discoveries in the field of materials science and engineering in the future

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Successful Doctoral Defense of Nils-Christian Petry (P5)

Congratulations to Nils Petry from DECHEMA Forschungsinstitut on the successful completion of his PhD.

Within the framework of his thesis, Nils Petry has achieved a significant milestone with his work on the influence of polymer-derived ceramics, used as sintering aids for preparing ZrB2-based monoliths and their oxidation
https://doi.org/10.1111/jace.18473
His dedication and commitment have been instrumental in advancing our understanding of the impact of nitrogen and boron in such scales.

During the course of his research, Nils contributed to notable advancements in the characterization of ultra-high temperature ceramic nanocomposites (UHTC-NC) within the Si(HfxTa1−x)(C)N system, which was synthesized via the polymer-derived ceramics (PDC) synthesis route.
https://doi.org/10.1016/j.jeurceramsoc.2022.11.060

One abroad collaboration really stood out with the AHG in Krakow, Poland.
https://doi.org/10.1016/j.surfcoat.2023.130049
This collaborative approach has demonstrated, that PDC be used to successfully enhance the oxidation resistance of refractory high temperature alloys.

Nils Petry's achievements underscore his commitment to excellence in the RTG. We extend our best wishes to him as he continues his career in the ceramic industry. Congratulations once again on this well-deserved accomplishment!

hinrichsiam-wk
Successful Doctoral Defense of Frauke Hinrichs (P8)

We congratulate Frauke Hinrichs on successfully defending her doctoral thesis. She was awarded the doctorate for her thesis on “Microstructure and Oxidation Resistance of single-phase and multi-phase Cr-Mo-Si Alloys”. In the framework of the RTG2561 funded by DFG, she contributed to our work on the development of refractory element based alloys for potential high temperature application.

She implemented for the first time the powder synthesis of high Mo containing alloys on lab by ultrasonic atomization and presented the successful industrial upscale in collaboration with industry:
https://doi.org/10.3390/met11111723

The major scope of her thesis work was the transfer of the alloy principle of pesting resistant Mo-Si-Ti to Cr containing Mo-Si alloys. She successfully transferred the alloy design to a novel alloy from the ternary Cr-Mo-Si system, incl. similar volume fractions of solid solution and silicide:
https://doi.org/10.1016/j.corsci.2022.110566
This alloy turned out being resistant against the catastrophic oxidation of most high Mo alloys (pesting) but also resistant against problems characteristic of Cr based alloys like nitridation.

In the final period of her thesis, Frauke focused on the oxidation resistance and mechanical properties of monolithic solid solutions derived from her previous investigations. These refractory solid solutions do not only exhibit an outstanding oxidation resistance but also significant ductility:
https://doi.org/10.5445/IR/1000166092
We wish Frauke all the best for her further career and look forward to discoveries in the field of materials science and engineering in the future.

caicai
Successful Doctoral Defense of Yuhan Cai (P9)

Yuhan Cai successfully defended his PhD thesis with the title "Phasenfeldmodellierung der mikrostrukturellen Entwicklung in Mehrkomponenten-Legierungssystemen". Congratulations from the RTG team!

By simulating the lamellae growth during a eutectic transformation in Mo-Si-Ti alloy, Yuhan and the collaborators have constructed a microstructure selection map, which will be helpful to the RTG in the development of new tailored materials by new designing the microstructural morphology. His computational investigation of the quasi-peritectic four-phase reaction, combined with insights from the previous studies on the peritectic transition in binary systems, provides additional understanding of the underlying growth mechanism for the formation of lamellae pairs in the Mo-Si-Ti alloy. The study on the bending growth of lamellae explains two possible reasons for this phenomenon as found in experiments.

poster
The High Temperature Corrosion and Oxidation 2023 Workshop

The picturesque town of Marktheidenfeld, nestled along the banks of the Main River in Germany, provided a platform for knowledge exchange and collaboration among experts at the High Temperature Corrosion and Oxidation 2023 Workshop from September 25th to 29th, 2023.

This international event brought together 100 of the world’s leading scientists, researchers, and industry experts from thirteen countries to discuss the critical topic of high temperature corrosion and oxidation. The workshop was held against the backdrop of pressing challenges in energy production, particularly in the context of shifting from fossil fuels to renewable and carbon-neutral processes. The different talks highlighted the necessity of developing innovative material solutions capable of withstanding the harsh environments associated with renewable energy processes and pushing the efficiencies, and thus process parameters, at elevated temperatures.

Discussions centered on the impact of novel process conditions and media, such as nitride, carbonate or chloride salt melts, supercritical CO2, and changing the compositions of process gases. A key topic was higher levels of hydrogen (H2) and water vapor (H2O) when moving towards a hydrogen based economy. Many discussions covered the impact of new additive manufacturing techniques on the microstructure, chemistry and finally the oxidation and corrosion resistance of parts for high temperature components. Nine members of the RTG took part and had the opportunity to discuss their research projects and potential exchanges with top international scientist such as the Prof. Beth Opila (Virginia), Prof. Brian Gleeson (Pittsburgh) and Prof. Shigenari Hayashi (Hokkaido).

The workshop developed key takeaways and formed future directions also for the high temperature corrosion and oxidation research within the RTG. The event underscored the critical role of materials science and engineering in addressing the pressing challenges associated with the transition to renewable energy sources. Collaborative efforts, international partnerships, and multidisciplinary research approaches are essential components of future progress. As the workshop came to a close, it left all attendees from the RTG inspired and motivated to continue their pursuit of materials solutions that will shape the energy landscape of the future. RTG member Lisa Koliotassis was awarded the poster price for the best poster.


Researchers

Principal investigators
Name Institute
heilmaier
Prof. Spokesperson Institute for Applied Materials (KIT)
albe
Prof. Co-Spokesperson Department of Materials and Earth Sciences (TUD)
yme
Prof.   Laboratory for Electron Microscopy (KIT)
galetz
PD   DECHEMA-Forschungsinstitut (DFI)
gorr
Prof.   Institute for Applied Materials (KIT)
ionescu
PD Dr.   Department of Materials and Earth Sciences (TUD)
nestler
Prof.   Institute for Applied Materials (KIT)
oechsner
Prof.   Staatliche Materialprüfungsanstalt Darmstadt (TUD)
pundt
Prof.   Institute for Applied Materials (KIT)
riedel
Prof.   Department of Materials and Earth Sciences (TUD)
schwaiger
Prof.   Institut für Energie- und Klimaforschung (former KIT, now FZJ)
white
Dr.   DECHEMA-Forschungsinstitut (DFI)
xu
Prof.   Department of Materials and Earth Sciences (TUD)
Members
Name Project Institute
bernauer
M.Sc. P1, doctoral researcher (1st cohort) Department of Materials and Earth Sciences (TUD)
boroojerdi
M.Sc. P1, doctoral researcher (2nd cohort) Department of Materials and Earth Sciences (TUD)
winkens
M.Sc. P10, doctoral researcher (1st cohort) Institute for Applied Materials (KIT)
ramdoss
M.Sc. P10, doctoral researcher (2nd cohort) Institute for Applied Materials (KIT)
czerny
M.Sc. P11, doctoral researcher (1st cohort) Institute for Applied Materials (KIT)
ramasamy
M.Sc. P11, doctoral researcher (2nd cohort) Institute for Applied Materials (KIT)
thota
M.Sc. P14, doctoral researcher (1st cohort) Laboratory for Electron Microscopy (KIT)
kredel
M.Sc. P2, doctoral researcher (1st cohort) Department of Materials and Earth Sciences (TUD)
thor
M.Sc. P3, doctoral researcher (1st cohort) Department of Materials and Earth Sciences (TUD)
nurak
M.Sc. P3, doctoral researcher (2nd cohort) Institute for Applied Materials (KIT)
yang
M.Sc. P4, doctoral researcher (1st cohort) Department of Materials and Earth Sciences (TUD)
Fathidoost
M.Sc. P4, doctoral researcher (2nd cohort) Department of Materials and Earth Sciences (TUD)
petry
M.Sc. P5, doctoral researcher (1st cohort) DECHEMA-Forschungsinstitut (DFI)
prill
M.Sc. P5, doctoral researcher (2nd cohort) DECHEMA-Forschungsinstitut (DFI)
kontermann
Dr. P6, assoc. PostDoc Staatliche Materialprüfungsanstalt Darmstadt (TUD)
filipovic
M.Sc. P6, doctoral researcher (1st cohort) Staatliche Materialprüfungsanstalt Darmstadt (TUD)
beck
M.Sc. P7, doctoral researcher (1st cohort) DECHEMA-Forschungsinstitut (DFI)
korell
M.Sc. P7, doctoral researcher (1st cohort) DECHEMA-Forschungsinstitut (DFI)
schliephake
Dr. P8, assoc. PostDoc Institute for Applied Materials (KIT)
hinrichs
M.Sc. P8, doctoral researcher (1st cohort) Institute for Applied Materials (KIT)
falcao
M.Sc. P8, doctoral researcher (2nd cohort) Institute for Applied Materials (KIT)
cai
M.Sc. P9, doctoral researcher (1st cohort) Institute for Applied Materials (KIT)
zhang
M.Sc. P9, doctoral researcher (2nd cohort) Institute for Applied Materials (KIT)

Publications


2024
Heterogeneous oxidation behavior and kinetic mechanisms of SiBCN ceramic with structure of MA-SiBCN coated by PDCs-SiBCN
Niu, Z.- bo; Li, D.; Jia, D.; Yang, Z.; Lin, K.; Colombo, P.; Riedel, R.; Zhou, Y.
2024. Journal of the European Ceramic Society, 44 (3), 1520–1533. doi:10.1016/j.jeurceramsoc.2023.10.040
Overcoming the Fundamental Barriers for Novel Refractory High Temperature Alloys: Oxidation and Ductility
Hinrichs, F.; Winkens, G.; Kramer, L. K.; Schliephake, D.; Falcão, G.; Galetz, M. C.; Inui, H.; Kauffmann, A.; Heilmaier, M.
2024, February 9. BCC Superalloy Network Opening Workshop (BCC-Snow 2024), Reutte, Austria, February 8–9, 2024
Oxidation behavior of amorphous and nanocrystalline SiBCN ceramics – Kinetic consideration and microstructure
Niu, Z.; Li, D.; Jia, D.; Yang, Z.; Lin, K.; Riedel, R.; Colombo, P.; Zhou, Y.
2024. Advanced Powder Materials, 3 (1), Article no: 100163. doi:10.1016/j.apmate.2023.100163
Heterogeneous oxidation of different atomic clusters in amorphous SiBCN ceramic associated with phase separation
Niu, Z.- bo; Li, D.; Jia, D.; Yang, Z.; Lin, K.; Colombo, P.; Riedel, R.; Zhou, Y.
2024. Corrosion Science, 227, Article no: 111723. doi:10.1016/j.corsci.2023.111723
Comparative study on the microstructure evolution and crystallization behavior of precursor-derived and mechanical alloying derived SiBCN
Niu, Z.- bo; Li, D.; Jia, D.; Yang, Z.; Lin, K.; Wang, D.; He, Y.; Zhou, G.; Colombo, P.; Riedel, R.; Zhou, Y.
2024. Journal of the European Ceramic Society, 44 (2), 668–678. doi:10.1016/j.jeurceramsoc.2023.09.046
Raw Data to "Overcoming barriers for high temperature alloys: oxidation and ductility"
Hinrichs, F.; Winkens, G.; Kramer, L. K.; Schliephake, D.; Falcão, G.; Galetz, M. C.; Inui, H.; Kauffmann, A.; Heilmaier, M.
2024, January 11. doi:10.35097/1866
High-temperature Stability in Harsh Enviroments
Korell, L.
2024. International Conference on Resource Chemistry (ICRC 2024), Alzenau in Unterfranken, Germany, March 11–13, 2024
Solid solution strengthening in single phase Mo alloys
Winkens, G.; Kauffmann, A.; Schwaiger, R.; Heilmaier, M.
2024. International Conference on Resource Chemistry (ICRC 2024), Alzenau in Unterfranken, Germany, March 11–13, 2024
Thermodynamic assessment of the Mo‐Si system
Czerny, A. K.; Ma, W.; Hausner, C. S.; Franke, P.; Rohde, M.; Seifert, H. J.
2024. Advanced Engineering Materials, Artk.Nr.: 230208. doi:10.1002/adem.202302085
The Creep‐induced Micro‐ and Nanostructural Evolution of a Eutectic Mo‐Si‐Ti Alloy at 1200 °C
Schliephake, D.; Thota, H.; Kauffmann, A.; Wu, H.; Pundt, A.; Heilmaier, M.; Eggeler, Y. M.
2024. Advanced Engineering Materials. doi:10.1002/adem.202301909
Strength of Disordered and Ordered Al‐containing Refractory High Entropy Alloys
Laube, S.; Winkens, G.; Kauffmann, A.; Li, J.; Kirchlechner, C.; Heilmaier, M.
2024. Advanced Engineering Materials. doi:10.1002/adem.202301797
Oxidation Resistance and Microstructural Analysis of Polymer‐Derived (HfₓTa₁₋ₓ )C/SiC Ceramic Nanocomposites
Petry, N.-C.; Thor, N.; Bernauer, J.; Ulrich, A. S.; Ionescu, E.; Riedel, R.; Pundt, A.; Galetz, M. C.; Lepple, M.
2024. Advanced Engineering Materials, Article no: 230202. doi:10.1002/adem.202302023
Microstructure Characterization and Mechanical Properties of Polymer‐Derived (HfₓTa₁₋ₓ)C/SiC Ceramic Prepared upon Field‐Assisted Sintering Technique (FAST/SPS)
Thor, N.; Winkens, G.; Bernauer, J.; Petry, N.-C.; Beck, K.; Wang, J.; Schwaiger, R.; Riedel, R.; Kolb, U.; Lepple, M.; Pundt, A.
2024. Advanced Engineering Materials. doi:10.1002/adem.202301841
Unveiling the Intricacies of a Ductile‐Phase Toughened Intermetallic: An In‐depth Exploration of a Eutectic Mo‐Si‐Ti Alloy and its Mechanical Behavior
Vikram, R. J.; Aramanda, S. K.; Schliephake, D.; Kauffmann, A.; Choudhury, A.; Heilmaier, M.; Suwas, S.
2024. Advanced Engineering Materials. doi:10.1002/adem.202301843
Tailoring layered Csf/SiBCN composites with pseudoplastic fracture behavior: Strengthening and toughening mechanisms
Dou, W.; Li, D.; Wang, B.; Cai, D.; Yang, Z.; Jia, D.; Riedel, R.; Qin, S.; Zhou, Y.
2024. Journal of the American Ceramic Society, 107 (1), 404–416. doi:10.1111/jace.19414
Polymer‐Derived Ceramic Coatings with Excellent Thermal Cycling Stability
Bernauer, J.; Kredel, S. A.; Ionescu, E.; Riedel, R.
2024. Advanced Engineering Materials. doi:10.1002/adem.202301820
Exceptional hardness and thermal properties of SiC/(Hf,Ta)C(N)/ (B)C ceramic composites derived from single‐source precursor
Bernauer, J.; Petry, N.-C.; Thor, N.; Kredel, S. A.; Teja Teppala, D.; Galetz, M.; Lepple, M.; Pundt, A.; Ionescu, E.; Riedel, R.
2024. Advanced Engineering Materials. doi:10.1002/adem.202301864
Aluminide diffusion coatings for improving the pesting behavior of refractory metals
Beck, K.; Ulrich, A. S.; Czerny, A. K.; White, E. M. H.; Heilmaier, M.; Galetz, M. C.
2024. Surface and Coatings Technology, 476, Art.-Nr.: 130205. doi:10.1016/j.surfcoat.2023.130205
2023
Overcoming barriers for high temperature alloys: oxidation and ductility
Hinrichs, F.; Winkens, G.; Kramer, L. K.; Schliephake, D.; Falcão, G.; Galetz, M. C.; Inui, H.; Kauffmann, A.; Heilmaier, M.
2023. doi:10.5445/IR/1000166092
Microstructure control of porous Si3N4 whisker scaffolds by in-situ carbothermal reduction and nitridation reaction
Li, M.; Mo, R.; Zhou, J.; Zhang, C.; Cui, X.; Ye, F.; Cheng, L.; Riedel, R.
2023. Journal of the European Ceramic Society, 43 (16), 7354–7362. doi:10.1016/j.jeurceramsoc.2023.07.066
Oxidation behaviour of uncoated and PDC-SiAlOC glass-coated TiAl at 750 °C in dry and humid air
Bik, M.; Galetz, M.; Mengis, L.; White, E.; Wieczorek, W.; Łyszczarz, K.; Mroczka, K.; Marchewka, J.; Sitarz, M.
2023. Applied Surface Science, 632, Article no: 57601. doi:10.1016/j.apsusc.2023.157601
Polymer-derived SiAlOC coating to improve the high-temperature resistance of chromium
Petry, N.-C.; Bik, M.; Wilk, Ł.; Swadźba, R.; Ulrich, A. S.; Sitarz, M.; Lepple, M.; Galetz, M. C.
2023. Surface and Coatings Technology, 474, Article no: 130049. doi:10.1016/j.surfcoat.2023.130049
Temperature‐dependent mechanical and oxidation behavior of in situ formed ZrN/ZrO 2 ‐containing Si 3 N 4 ‐based composite
Liu, J.; Li, W.; Ricohermoso, E., III; Qiao, Z.; Dai, Q.; Liu, X.; Xie, W.; Ionescu, E.; Weidenkaff, A.; Riedel, R.
2023. Journal of the American Ceramic Society, 106 (8), 4931–4943. doi:10.1111/jace.19146
Phase evolution and oxidation resistance of Si3N4/HfB2/HfB C N1–– ceramic nanocomposites prepared from tailored preceramic polymers
Li, W.; Widenmeyer, M.; Ding, J.; Jiang, T.; Feldmann, L.; Liu, J.; Molina-Luna, L.; Weidenkaff, A.; Riedel, R.; Yu, Z.
2023. Ceramics International. doi:10.1016/j.ceramint.2023.08.123
Simulation of dendritic–eutectic growth with the phase-field method
Seiz, M.; Kellner, M.; Nestler, B.
2023. Acta Materialia, 254, Art.-Nr.: 118965. doi:10.1016/j.actamat.2023.118965
Composition-dependent structural characteristics and mechanical properties of amorphous SiBCN ceramics by ab-initio calculations
Liu, Y.; Zhou, Y.; Jia, D.; Yang, Z.; Duan, W.; Li, D.; Li, S.; Riedel, R.; Liu, B.
2023. Journal of Advanced Ceramics, 12 (5), 984–1000. doi:10.26599/JAC.2023.9220733
Flexible powder production for additive manufacturing of refractory metal alloys
Hinrichs, F.; Schliephake, D.; Kauffmann, A.; Seils, S.; Obert, S.; Ratschbacher, K.; Allen, M.; Pundt, A.; Heilmaier, M.
2023, March 23. 4th International Conference on Electron Beam Additive Manufacturing (EBAM 2023), Erlangen, Germany, March 22–24, 2023
Significant improvement of ultra-high temperature oxidation resistance of C/SiC composites upon matrix modification by SiHfBCN ceramics
Xu, X.; Luan, X.; Zhang, J.; Cao, X.; Zhao, D.; Cheng, L.; Riedel, R.
2023. Composites Part B: Engineering, 253, Article no: 110553. doi:10.1016/j.compositesb.2023.110553
Assessing the Structural Integrity of Plasma-Sprayed Multilayer Thermal Barrier Coatings
Adam, M.; Kontermann, C.; Oechsner, M.
2023. Journal of Engineering for Gas Turbines and Power, 145 (3), Art.-Nr.: 031014. doi:10.1115/1.4055668
Data-driven thermal and percolation analyses of 3D composite structures with interface resistance
Fathidoost, M.; Yang, Y.; Oechsner, M.; Xu, B.-X.
2023. Materials & Design, 227, Art.-Nr.: 111746. doi:10.1016/j.matdes.2023.111746
Influence of surface treatment on the metal dusting behavior of alloy 699 XA
White, E.; Schlereth, C.; Lepple, M.; Hattendorf, H.; Nowak, B.; Galetz, M. C.
2023. Materials and Corrosion, 74 (2), 190–196. doi:10.1002/maco.202213380
Mechanical response of pesting-resistant Mo-Si-Ti alloys for high temperature applications
Kauffmann, A.; Schliephake, D.; Obert, S.; Tirunilai, A. S.; Hinrichs, F.; Winkens, G.; Wu, H.; Thota, H.; Eggeler, Y.; Mücklich, F.; Engstler, M.; Gorr, B.; Heilmaier, M.
2023, January 6. International Conference on Plasticity, Damage, and Fracture (ICPDF 2023), Punta Cana, Dominican Republic, January 3–9, 2023
Deformation mechanisms in Mo-based alloys evaluated by modelling of solid solution strengthening
Winkens, G.; Kauffmann, A.; Herrmann, J. K.; Czerny, A. K.; Obert, S.; Seils, S.; Boll, T.; Baruffi, C.; Rao, Y.; Curtin, W. A.; Schwaiger, R.; Heilmaier, M.
2023. FEMS Euromat (2023), Frankfurt am Main, Germany, September 3–7, 2023
Influence of copper and aluminum substitution on high‐temperature oxidation of the FeCoCrNiMn “Cantor” alloy
Bürckner, M.-L.; Mengis, L.; White, E. M. H.; Galetz, M. C.
2023. Materials and Corrosion, 74 (1), 79–90. doi:10.1002/maco.202213382
Novel Cr/Si-Slurry Diffusion Coatings for High Temperatures
Kerbstadt, M.; White, E. M. H.; Galetz, M. C.
2023. Materials, 16, Article no: 7480. doi:10.3390/ma16237480
A Review of the Synthesis of Compositionally Complex Ultrahigh-Temperature Ceramics
Teja Teppala, D.; Kredel, S. A.; Ionescu, E.; Matovic, B.
2023. Journal of Innovative Materials in Extreme Conditions, 4 (2), 77–103
Mo-Si-Ti Ternary Phase Diagram Evaluation
Bondar, A.; Lukas, H. L.; Czerny, A. K.; Romaka, V.
2023. MSI Eureka, 97, 10.18571.2.8. doi:10.7121/msi-eureka-10.18571.2.8
Chromium Diffusion Coatings for Mo-Based Silicides to Improve Their Oxidation Resistance
Beck, K.; Hinrichs, F.; Oskay, C.; Ulrich, A. S.; Heilmaier, M.; Galetz, M. C.
2023. Coatings, 13 (10), 1712. doi:10.3390/coatings13101712
Polymer-derived ceramic (PDC) thin films to promote protective oxide formation on TiAl
Mengis, L.; Bik, M.; Petry, N.-C.; Watermeyer, P.; Liebscher, C.; White, E. M. H.; Ulrich, S. A.; Sitartz, M.; Galetz, M. C.
2023. High Temperature Corrosion – Gordon Research Conference (2023), New London, NH, USA, July 16–21, 2023
Phase-Field Simulation of the Microstructure Evolution in the Eutectic Alloy NiAl-31Cr-3Mo
Kellner, M.; Schulz, C.; Kauffmann, A.; Heilmaier, M.; Nestler, B.
2023. Crystals, 13 (7), Article no: 1046. doi:10.3390/cryst13071046
Oxidation resistance of polymer-derived (Hf,Ta)C/SiC ceramic monoliths
Petry, N.-C.; Bernauer, J.; Thor, N.; Wen, Q.; Ulrich, A. S.; Ionescu, E.; Kleebe, H.-J.; Riedel, R.; Galetz, M. C.; Lepple, M.
2023. 47th International Conference and Expo on Advanced Ceramics and Composites (ICACC 2023), Daytona Beach, FL, USA, January 22–27, 2023
Microstructural evolution of novel Si(M)(BC)N polymer-derived ceramics upon different heat treatments
Thor, N.; Bernauer, J.; Petry, N.-C.; Ionescu, E.; Riedel, R.; Pundt, A.; Kleebe, H.-J.
2023. Microscopy Conference (MC 2023), Darmstadt, Germany, February 26–March 2, 2023
Single-Source-Precursor Derived SiHf(B)N Ceramic Nanocomposites: Synthesis and Mechanical Properties
Riedel, R.
2023. 11th International Symposium on Nitrides (ISNT 2023), St-Malo, France, May 2–5, 2023
Si-B-C-N-Based Ceramics History and Perspectives
Riedel, R.
2023. Seminarvortrag Nagoya Institute of Technology (NITEC) (2023), Nagoya, Japan, February 3, 2023
The influence of lattice misfit on screw and edge dislocation-controlled solid solution strengthening in Mo-Ti alloys
Winkens, G.; Kauffmann, A.; Herrmann, J.; Czerny, A. K.; Obert, S.; Seils, S.; Boll, T.; Baruffi, C.; Rao, Y.; Curtin, W. A.; Schwaiger, R.; Heilmaier, M.
2023. Communications Materials, 4 (1), 26. doi:10.1038/s43246-023-00353-8
2022
Microstructural evolution of Si(HfₓTa₁₋ₓ)(C)N polymer-derived ceramics upon high-temperature anneal
Thor, N.; Bernauer, J.; Petry, N.-C.; Ionescu, E.; Riedel, R.; Pundt, A.; Kleebe, H.-J.
2022. Journal of the European Ceramic Society, 43 (4), 1417–1431. doi:10.1016/j.jeurceramsoc.2022.11.060
Pesting Resistance in High Mo Containing Alloys
Kauffmann, A.; Schliephake, D.; Obert, S.; Tirunilai, A. S.; Hinrichs, F.; Gorr, B.; Heilmaier, M.
2022, November 30. MRS Fall Meeting & Exhibit (2022), Boston, MA, USA, November 27–December 2, 2022
Improved work hardening capability and ductility of an additively manufactured and deformed Al-Mn-Mg-Sc-Zr alloy
Schliephake, D.; Lopes, C.; Eggeler, Y. M.; Chen, H.; Freudenberger, J.; Bayoumy, D.; Huang, A. J.; Kauffmann, A.
2022. Journal of Alloys and Compounds, 924, Artkl.Nr.: 166499. doi:10.1016/j.jallcom.2022.166499
Phase continuity, brittle to ductile transition temperature and creep behavior of a eutectic Mo‐20Si‐52.8Ti alloy
Tirunilai, A. S.; Hinrichs, F.; Schliephake, D.; Engstler, M.; Mücklich, F.; Obert, S.; Winkens, G.; Kauffmann, A.; Heilmaier, M.
2022. Advanced Engineering Materials, 24 (11), Art.Nr. 2200918. doi:10.1002/adem.202200918
A novel nitridation- and pesting-resistant Cr-Si-Mo alloy
Hinrichs, F.; Kauffmann, A.; Tirunilai, A. S.; Schliephake, D.; Beichert, B.; Winkens, G.; Beck, K.; Ulrich, A. S.; Galetz, M. C.; Long, Z.; Thota, H.; Eggeler, Y.; Pundt, A.; Heilmaier, M.
2022. Corrosion Science, 207, Art.-Nr.: 110566. doi:10.1016/j.corsci.2022.110566
Refractory metal-based high entropy silicide-borides: The future of materials beyond MoSiB?
Galetz, M. C.; Ulrich, A. S.; Hasemann, G.; Krüger, M.
2022. Intermetallics, 148, Article no: 107620. doi:10.1016/j.intermet.2022.107620
Oxidation resistance of ZrB₂-based monoliths using polymer-derived Si(Zr,B)CN as sintering aid
Petry, N.-C.; Ulrich, A. S.; Feng, B.; Ionescu, E.; Galetz, M. C.; Lepple, M.
2022. Journal of the American Ceramic Society, 105 (8), 5380–5394. doi:10.1111/jace.18473
Pesting-Resistant Mo-Based Alloys
Obert, S.; Schliephake, D.; Hinrichs, F.; Tirunilai, A. S.; Cong, X.; Gorr, B.; Kauffmann, A.; Heilmaier, M.
2022, July 6. Scientific seminar of the Institut für Komplexe Materialien / Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden (IKM / IFW Dresden 2023), Dresden, Germany, July 6, 2022
Pt accelerated coarsening of A15 precipitates in Cr-Si alloys
Ulrich, A. S.; Knowles, A. J.; Cantatore, V.; Bhowmik, A.; Wharmby, M. T.; Geers, C.; Panas, I.; Galetz, M. C.
2022. Materials & Design, 218, Article no: 110655. doi:10.1016/j.matdes.2022.110655
Influence of Water Vapor and Temperature on the Oxide Scale Growth and Alpha-Case Formation in Ti-6Al-4V Alloy
Öztürk, B.; Mengis, L.; Dickes, D.; Glatzel, U.; Galetz, M. C.
2022. Oxidation of Metals, 97 (3-4), 241–260. doi:10.1007/s11085-021-10088-x
A diffuse-interface model of anisotropic interface thermal conductivity and its application in thermal homogenization of composites
Yang, Y.; Fathidoost, M.; Oyedeji, T. D.; Bondi, P.; Zhou, X.; Egger, H.; Xu, B.-X.
2022. Scripta materialia, 212, Article no: 114537. doi:10.1016/j.scriptamat.2022.114537
Si-based polymer-derived ceramics for energy conversion and storage
Wen, Q.; Qu, F.; Yu, Z.; Graczyk-Zajac, M.; Xiong, X.; Riedel, R.
2022. Journal of Advanced Ceramics, 11 (2), 197–246. doi:10.1007/s40145-021-0562-2
Protective Alumina Scale Growth at 900 °C for a Ni- and Cr-Free Co-Base Model Alloy with γ/γ’-Microstructure: Synergistic Effects by Combining Shot-Peening and Halogenation
Hagen, S. P.; Beck, K.; Kubacka, D.; Zschau, H.-E.; Galetz, M. C.; Spiecker, E.; Virtanen, S.
2022. Oxidation of Metals, 97 (1-2), 209–226. doi:10.1007/s11085-021-10087-y
A machine-learned interatomic potential for silica and its relation to empirical models
Erhard, L. C.; Rohrer, J.; Albe, K.; Deringer, V. L.
2022. npj Computational Materials, 8 (1), Article no: 90. doi:10.1038/s41524-022-00768-w
Monolithic ZrB₂‐based UHTC s using polymer‐derived Si(Zr,B)CN as sintering aid
Feng, B.; Fetzer, A.-K.; Ulrich, A. S.; Christian Galetz, M.; Kleebe, H.-J.; Ionescu, E.
2022. Journal of the American Ceramic Society, 105 (1), 99–110. doi:10.1111/jace.18038
Characteristics of Si-B-C-N-based Ceramics
Riedel, R.
2022. 15th International Conference on Modern Materials and Technologies (CIMTEC 2022), Perugia, Italy, June 20–24, 2022
Advanced Polymer-Derived (Ultra)-High-Temperature Resistant Ceramic Nanocomposites for Energy Conversion and Storage
Riedel, R.
2022. Korean Ceramic Society Remote Symposium (2022), Online, April 14, 2022
Mechanical and thermokinetic description of innovative coating systems
Filipovic, J.; Adam, M.; Kontermann, C.; Oechsner, M.
2022. International Thermal Spray Conference and Exposition (ITSC 2022), Vienna, Austria, May 4–6, 2022
Mechanical and thermokinetic description of innovative coating systems
Filipovic, J.; Adam, M.; Kontermann, C.; Oechsner, M.
2022. 23rd Symposium Verbundwerkstoffe und Werkstoffverbunde (2022), Online, July 20–22, 2022
Assessing the structural integrity of plasma-sprayed multilayer thermal barrier coatings
Oechsner, M.; Adam, M.; Kontermann, C.
2022. 11th Thermal and Environmental Barrier Coatings VI (2022), Irsee, Germany, June 19–24, 2022
On the structural integrity of multilayer thermal barrier coating systems
Adam, M.; Filipovic, J.; Kontermann, M.; Oechsner, M.
2022. 10th Les Rencontres Internationales de la Projection Thermique Conference (RIPT 2022), Jülich, Germany, June 1–3, 2022
Micromagnetics and Data-driven Multiscale Hysteresis Simulations of Permanent Magnets
Yang, Y.; Kühn, P.; Fathidoost, M.; Xu, B.-X.
2022. 20th International IGTE Symposium 2022 on Computational Methods in Electromagnetics and Multiphysics (IGTE 2022), Graz, Austria, September 18–21, 2022
Property Tailoring using Powder Bed Fusion Studied by Multiphysics and Multiscale Phase-field Modeling
Yang, Y.; Zhou, X.; Xu, B.-X.
2022. Young Ceramists Additive Manufacturing Forum (yCAM 2022), Barcelona, Spain, November 9–11, 2022
A novel pesting and nitridation resistant Mo-Si-Cr alloy
Hinrichs, F.; Kauffmann, A.; Tirunilai, A. S.; Schliephake, D.; Beichert, B.; Winkens, G.; Beck, K.; Ulrich, S. A.; Galetz, M. C.; Long, Z.; Thota, H.; Eggeler, Y.; Pundt, A.; Heilmaier, M.
2022. Materials Science and Engineering Congress (MSE 2022), Darmstadt, Germany, September 27–29, 2022
Improving the Intermediate Temperature Oxidation Resistance of Refractory Metals and Mo-based Systems
Beck, K.; Ulrich, A. S.; Hinrichs, F.; König, T.; Heilmaier, M.; Galetz, M. C.
2022. International Conference on Metallurgical Coatings and Thin Films (ICMCTF 2022), San Diego, CA, USA, May 22–27, 2022
Solid Solution Hardening in bcc Mo-Ti solid solutions produced via arc-melting
Winkens, G.; Obert, S.; Kauffmann, A.; Heilmaier, M.; Schwaiger, R.
2022. 19th International Conference on Strength of Materials (ICSMA 2022), Metz, France, June 26–July 1, 2022
Improving the Corrosion Resistance of Mo-based Systems
Beck, K.; Ulrich, A. S.; Hinrichs, F.; König, T.; Oskay, C.; Heilmaier, M.; Galetz, M. C.
2022. 11th International Conference on Microscopy of Oxidation (2022), Cranfield, United Kingdom, September 12–14, 2022
Phase-field investigation on three- and four-phase microstructural evolution in Mo-Si-Ti system
Cai, Y.; Wang, F.; Czerny, A. K.; Seifert, H. J.; Nestler, B.
2022. Materials Science and Engineering Congress (MSE 2022), Darmstadt, Germany, September 27–29, 2022
Heterogeneous phase equilibria in the Mo-Si-Ti system at 1300 °C
Czerny, A. K.; Rohde, M.; Seifert, H. J.
2022. Materials Science and Engineering Congress (MSE 2022), Darmstadt, Germany, September 27–29, 2022
Heterogeneous phase equilibria in the Mo-Si-Tisystem at 1300 °C
Czerny, A. K.; Rohde, M.; Seifert, H. J.
2022. Thermodynamic of Alloys (2022), Krakow, Poland, September 12–16, 2022
Investigation of the Oxidation Resistance of ZrB2-based Monoliths Using Polymer-Derived Si(Zr,B)CN as Sintering Aid
Petry, N.-C.; Ulrich, A. S.; Feng, B.; Ionescu, E.; Galetz, M. C.; Lepple, M.
2022. Ultra-High Temperature Ceramics: Materials for Extreme Environment Applications (2022), Snowbird, UT, USA, June 5–8, 2022
Investigation of the Oxidation Resistance of SiAlOC Coated Chromium
Petry, N.-C.; Bik, M.; Ulrich, A. S.; Sitarz, M.; Lepple, M.; Galetz, M. C.
2022. 15th International Conference on Modern Materials and Technologies (CIMTEC 2022), Perugia, Italy, June 20–24, 2022
Oxidation resistance and microstructural analysis of polymer-derived Si(Hf,Ta)C ceramic monoliths
Petry, N.-C.; Thor, N.; Bernauer, J.; Wen, Q.; Ionescu, E.; Kleebe, H.-J.; Galetz, M. C.; Lepple, M.
2022. 11th International Conference on Microscopy of Oxidation (2022), Cranfield, United Kingdom, September 12–14, 2022
Role of orientation relationship for the formation of morphology and preferred orientation in NiAl-(Cr,Mo) during directional solidification
Schulz, C.; Kauffmann, A.; Laube, S.; Kellner, M.; Nestler, B.; Heilmaier, M.
2022. Acta Materialia, 231, Art.Nr. 117857. doi:10.1016/j.actamat.2022.117857
Validated dimensionless scaling law for melt pool width in laser powder bed fusion
Yang, Y.; Großmann, A.; Kühn, P.; Mölleney, J.; Kropholler, L.; Mittelstedt, C.; Xu, B.-X.
2022. Journal of materials processing technology, 299, Article no: 117316. doi:10.1016/j.jmatprotec.2021.117316
2021
3D‐multilayer simulation of microstructure and mechanical properties of porous materials by selective sintering
Zhou, X.; Yang, Y.; Bharech, S.; Lin, B.; Schröder, J.; Xu, B.-X.
2021. GAMM-Mitteilungen, 44 (4, SI), e202100017. doi:10.1002/gamm.202100017
Heterogeneous equilibria in the systems Mo-Si-Ti and Mo-Si-Ti-B
Czerny, A.; Rohde, M.; Hausner, C.; Seifert, H. J.
2021, October 7. Intermetallics (2021), Bad Staffelstein, Germany, October 4–8, 2021
Heterogeneous phase equilibria in the Mo-Si-Ti system
Czerny, A.; Rohde, M.; Hausner, C.; Seifert, H. J.
2021, September 16. European Congress and Exhibition on Advanced Materials and Processes (EUROMAT 2021), Online, September 13–17, 2021
Behavior of copper‐containing high‐entropy alloys in harsh metal‐dusting environments
Galetz, M. C.; Schlereth, C.; White, E. M. H.
2021. Materials and Corrosion, 72 (7), 1232–1242. doi:10.1002/maco.202012075
Discontinuities in Oxidation Kinetics: A New Model and its Application to Cr–Si-Base Alloys
Ulrich, A. S.; Glatzel, U.; Galetz, M. C.
2021. Oxidation of Metals, 95 (5-6), 445–465. doi:10.1007/s11085-021-10029-8
Tensile Creep Properties of Cr-Si Alloys at 980 °C in Air—Influence of Ge and Mo Addition
Pfizenmaier, P.; Ulrich, A. S.; Galetz, M. C.; Glatzel, U.
2021. Metals, 11 (7), Article no: 1072. doi:10.3390/met11071072
Advanced Polymer-Derived (Ultra)-High-Temperature Resistant Ceramic Nanocomposites for Energy Conversion and Storage
Riedel, R.
2021. Seminar an der Waseda University (2021), Tokyo, Japan, October 8, 2021
Property Tailoring using Powder Bed Fusion Studied by Multiphysics and Multiscale Phase-field Modeling
Yang, Y.; Xu, B.-X.
2021. Seminar Numerische Mathematik und Mechanik, Institut für Mechanik (BauWi), Universität Duisburg-Essen (2021), Essen, Germany, April 1, 2021
Nanoparticle Tracing during Laser Powder Bed Fusion of Oxide Dispersion Strengthened Steels
Yang, Y.; Doñate-Buendía, C.; Oyedeji, T. D.; Gökce, B.; Xu, B.-X.
2021. Materials, 14 (13), Article no: 3463. doi:10.3390/ma14133463
Protective Diffusion Coatings on Refractory Metals
Beck, K.; Ulrich, A. S.; Galetz, M. C.
2021. Materials Science and Technology: Technical Meeting and Exhibition (MS&T 2021), Colombus, USA, October 17–21, 2021
Flexible Powder Production for Additive Manufacturing of Refractory Metal-Based Alloys
Hinrichs, F.; Kauffmann, A.; Schliephake, D.; Seils, S.; Obert, S.; Ratschbacher, K.; Allen, M.; Pundt, A.; Heilmaier, M.
2021. Metals, 11 (11), Article no: 1723. doi:10.3390/met11111723
Flexible powder production for additive manufacturing of refractory metal alloys
Hinrichs, F.; Schliephake, D.; Seils, S.; Obert, S.; Kauffmann, A.; Ratschbacher, K.; Allen, M.; Heilmaier, M.
2021. Intermetallics (2021), Bad Staffelstein, Germany, October 4–8, 2021
Protective Chromium Diffusion Coatings on Refractory Metals
Beck, K.; Ulrich, A. S.; Hinrichs, F.; Heilmaier, M.; Galetz, M. C.
2021. European Congress and Exhibition on Advanced Materials and Processes (EUROMAT 2021), Online, September 13–17, 2021
Investigation of the Oxidation Resistance of ZrB2-based Monoliths Using Polymer-Derived Si(Zr,B)CN as Sintering Aid
Petry, N.-C.; Ulrich, A. S.; Feng, B.; Ionescu, E.; Galetz, M. C.; Lepple, M.
2021. European Congress and Exhibition on Advanced Materials and Processes (EUROMAT 2021), Online, September 13–17, 2021
Protective Aluminum and Chromium Diffusion Coatings for Refractory Metals at High Temperature Exposure
Ulrich, A. S.; Beck, K.; Galetz, M. C.
2021. Intermetallics (2021), Bad Staffelstein, Germany, October 4–8, 2021
Phase-field investigation on the peritectic transition in Fe-C system
Cai, Y.; Zhang, Z.; Nestler, B.; Fei, W.
2021. Acta Materialia, 219, Art.-Nr.: 117223. doi:10.1016/j.actamat.2021.117223
The Creep and Oxidation Behaviour of Pesting-Resistant -Containing Eutectic-Eutectoid Mo-Si-Ti Alloys
Obert, S.; Kauffmann, A.; Pretzler, R.; Schliephake, D.; Hinrichs, F.; Heilmaier, M.
2021. Metals, 11 (1), Art.-Nr.: 169. doi:10.3390/met11010169
2020
Characteristics of Si-B-C-N-based Ceramics
Riedel, R.
2020. CIMTEC 2020 (2020), Montecatini Terme, Italy, June 15–23, 2020