Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)

Arbeitsgebiete / Forschung

Forschung
  • Chemische Charakterisierung von Lithium-Ionen-Batterien und Festkörperbatterien. Untersuchung der Kathode, Anode, Separator oder Elektroyt

  • Chemische Charakterisierung von Hochtemperatur-Werkstoffen und Metall-Legierung auf Haupt-, Neben- und Spurenelemente. Untersuchung auf Reinheit von Werkstoffen bis  99,999 % in Abhängigkeit von Material und Elementzusammensetzung.

  • Analytische Untersuchung von Geothermie-Wässern auf Haupt-, Neben- und Spurenelemente um Rückschlüsse auf Beläge und Korrosion zu erhalten

  • Chemische Charakterisierung von Nano- und Mikrostrukturen in leitenden Werkstoffen und Legierungen. Untersuchung auf Verunreinigungen an Korngrenzen und im Korn. Brüche im Ultra-Hochvakuum

SEM

Publikationsliste


2021
Phosphoric acid and thermal treatments reveal the peculiar role of surface oxygen anions in lithium and manganese-rich layered oxides.
He, J.; Hua, W.; Missiul, A.; Melinte, G.; Das, C.; Tayal, A.; Bergfeldt, T.; Mangold, S.; Liu, X.; Binder, J. R.; Knapp, M.; Ehrenberg, H.; Indris, S.; Schwarz, B.; Maibach, J.
2021. Journal of materials chemistry / A, 9 (1), 264–273. doi:10.1039/D0TA07371G
An up-conversion luminophore with high quantum yield and brightness based on BaF:Yb,Er single crystals.
Madirov, E. I.; Konyushkin, V. A.; Nakladov, A. N.; Fedorov, P. P.; Bergfeldt, T.; Busko, D.; Howard, I. A.; Richards, B. S.; Kuznetsov, S. V.; Turshatov, A.
2021. Journal of materials chemistry / C, 9 (10), 3493–3503. doi:10.1039/d1tc00104c
Improved performance of high-voltage Li-ion batteries using a novel chemically activated coating process.
Mereacre, V.; Bohn, N.; Müller, M.; Indris, S.; Bergfeldt, T.; Binder, J. R.
2021. Materials research bulletin, 134, Art.-Nr.: 111095. doi:10.1016/j.materresbull.2020.111095
2020
Solution Combustion-Mechanochemical Syntheses of Composites and Core-Shell xLiMnO·(1 - x)LiNiMnCoO(0 ≤ x ≤ 0.7) Cathode Materials for Lithium-Ion Batteries.
Ehi-Eromosele, C. O.; Indris, S.; Melinte, G.; Bergfeldt, T.; Ehrenberg, H.
2020. ACS sustainable chemistry & engineering, 8 (50), 18590–18605. doi:10.1021/acssuschemeng.0c06804
Synthesis and Characterization of a Multication Doped Mn Spinel, LiNiCuFeMnO, as 5 V Positive Electrode Material.
Sharma, P.; Das, C.; Indris, S.; Bergfeldt, T.; Mereacre, L.; Knapp, M.; Geckle, U.; Ehrenberg, H.; Darma, M. S. D.
2020. ACS omega, 5 (36), 22861–22873. doi:10.1021/acsomega.0c02174
Effect of HIP at 800 and 900 °C on microstructure and properties of extruded Be-Ti composites.
Gaisin, R.; Chakin, V.; Duerrschnabel, M.; Rolli, R.; Weingärtner, T.; Goraieb, A.; Vladimirov, P.
2020. Nuclear materials and energy, 24, 100771. doi:10.1016/j.nme.2020.100771
High quality epitaxial MnAu (001) thin films grown by molecular beam epitaxy.
Bommanaboyena, S. P.; Bergfeldt, T.; Heller, R.; Kläui, M.; Jourdan, M.
2020. Journal of applied physics, 127 (24), Art.-Nr.: 243901. doi:10.1063/5.0009566
Spinel to Rock-Salt Transformation in High Entropy Oxides with Li Incorporation.
Wang, J.; Stenzel, D.; Azmi, R.; Najib, S.; Wang, K.; Jeong, J.; Sarkar, A.; Wang, Q.; Sukkurji, P. A.; Bergfeldt, T.; Botros, M.; Maibach, J.; Hahn, H.; Brezesinski, T.; Breitung, B.
2020. Electrochem, 1 (1), 60–74. doi:10.3390/electrochem1010007
Lithium containing layered high entropy oxide structures.
Wang, J.; Cui, Y.; Wang, Q.; Wang, K.; Huang, X.; Stenzel, D.; Sarkar, A.; Azmi, R.; Bergfeldt, T.; Bhattacharya, S. S.; Kruk, R.; Hahn, H.; Schweidler, S.; Brezesinski, T.; Breitung, B.
2020. Scientific reports, 10, Art.-Nr.: 18430. doi:10.1038/s41598-020-75134-1
Elemental analysis of commercial zirconia dental implants - Is “metal-free” devoid of metals?.
Gross, C.; Bergfeldt, T.; Fretwurst, T.; Rothweiler, R.; Nelson, K.; Stricker, A.
2020. Journal of the mechanical behavior of biomedical materials, 107, Art.-Nr. 103759. doi:10.1016/j.jmbbm.2020.103759
Synthesis of Be₁₂Ti compound via arc melting or hot isostatic pressing.
Gaisin, R.; Chakin, V.; Rolli, R.; Hoffmann, J.; Leiste, H.; Bergfeldt, T.; Jäntsch, U.; Klimenkov, M.; Lorenz, J.; Goraieb, A.; Vladimirov, P.; Möslang, A.
2020. Journal of alloys and compounds, 818, Article No.152919. doi:10.1016/j.jallcom.2019.152919
2019
Microcharacterization of Interface Oxide Layer on Laser-Structured Silicon Surfaces of Plated Ni–Cu Solar Cells.
Büchler, A.; Grübel, B.; Arya, V.; Weingärtner, T.; Hähnel, A.; Naumann, V.; Bartsch, J.; Glatthaar, M.; Kluska, S.
2019. IEEE journal of photovoltaics, 9 (6), 1532–1540. doi:10.1109/JPHOTOV.2019.2938306
The measurement of Ag/In/Cd release under air-ingress conditions in the QUENCH-18 bundle test.
Kalilainen, J.; Lind, T.; Stuckert, J.; Bergfeldt, T.; Sippula, O.; Jokiniemi, J.
2019. Journal of nuclear materials, 517, 315–327. doi:10.1016/j.jnucmat.2019.02.021
High‐Performance Ferroelectric–Dielectric Multilayered Thin Films for Energy Storage Capacitors.
Silva, J. P. B.; Silva, J. M. B.; Oliveira, M. J. S.; Weingärtner, T.; Sekhar, K. C.; Pereira, M.; Gomes, M. J. M.
2019. Advanced functional materials, 29 (6), Article: 1807196. doi:10.1002/adfm.201807196
Syntheses, Crystal Structure, Electrocatalytic, and Magnetic Properties of the Monolanthanide-Containing Germanotungstates [Ln(HO)GeWO] (Ln = Dy, Er, n = 4,3).
Ibrahim, M.; Mbomekallé, I. M.; De Oliveira, P.; Baksi, A.; Carter, A. B.; Peng, Y.; Bergfeldt, T.; Malik, S.; Anson, C. E.
2019. ACS omega, 4 (26), 21873–21882. doi:10.1021/acsomega.9b02846
Ultrashort Pulsed Laser Surface Patterning of Titanium to Improve Osseointegration of Dental Implants.
Zwahr, C.; Welle, A.; Weingärtner, T.; Heinemann, C.; Kruppke, B.; Gulow, N.; Holthaus, M. große; Fabián Lasagni, A.
2019. Advanced engineering materials, 1900639. doi:10.1002/adem.201900639
Multi-anionic and -cationic compounds: new high entropy materials for advanced Li-ion batteries.
Wang, Q.; Sarkar, A.; Wang, D.; Velasco, L.; Azmi, R.; Bhattacharya, S. S.; Bergfeldt, T.; Düvel, A.; Heitjans, P.; Brezesinski, T.; Hahn, H.; Breitung, B.
2019. Energy & environmental science, 12 (8), 2433–2442. doi:10.1039/c9ee00368a
Laser-induced breakdown spectroscopy for the quantitative measurement of lithium concentration profiles in structured and unstructured electrodes.
Smyrek, P.; Bergfeldt, T.; Seifert, H. J.; Pfleging, W.
2019. Journal of materials chemistry / A, 7 (10), 5656–5665. doi:10.1039/C8TA10328C
Antimicrobial propensity of ultrananocrystalline diamond films with embedded silver nanodroplets.
Merker, D.; Popova, B.; Bergfeldt, T.; Weingärtner, T.; Braus, G. H.; Reithmaier, J. P.; Popov, C.
2019. Diamond and related materials, 93, 168–178. doi:10.1016/j.diamond.2019.02.003
Antibacterial propemsities of UNCD with embedded silver nanodroplets.
Merker, D.; Popova, B.; Weingärtner, T.; Bergfeldt, T.; Braus, G.; Reithmaier, J. P.; Popov, C.
2019. DPG-Frühjahrstagung der Sektion Kondensierte Materie (SKM), Fachverband Kristalline Festkörper und deren Mikrostruktur (2019), Regensburg, Deutschland, 31. März–5. April 2019
2018
Processing of complex near-net-shaped tungsten parts by PIM.
Antusch, S.; Hoffmann, J.; Klein, A.; Gunn, J. P.; Rieth, M.; Weingaertner, T.
2018. Nuclear materials and energy, 16, 71–75. doi:10.1016/j.nme.2018.05.023
Long-term thermal stability of two-phased lithium orthosilicate/metatitanate ceramics.
Heuser, J. M.; Kolb, M. H. H.; Bergfeldt, T.; Knitter, R.
2018. Journal of nuclear materials, 507, 396–402. doi:10.1016/j.jnucmat.2018.05.010
Enabling Large-Area Selective Deposition on Metal-Dielectric Patterns using Polymer Brush Deactivation.
Cummins, C.; Weingärtner, T.; Morris, M. A.
2018. The journal of physical chemistry <Washington, DC> / C, 122 (26), 14698–14705. doi:10.1021/acs.jpcc.8b04092
Molecular Surface Modification of NCM622 Cathode Material Using Organophosphates for Improved Li-Ion Battery Full-Cells.
Neudeck, S.; Walther, F.; Bergfeldt, T.; Suchomski, C.; Rohnke, M.; Hartmann, P.; Janek, J.; Brezesinski, T.
2018. ACS applied materials & interfaces, 10 (24), 20487–20498. doi:10.1021/acsami.8b04405
Performance Improvement of V-Fe-Cr-Ti Solid State Hydrogen Storage Materials in Impure Hydrogen Gas.
Ulmer, U.; Oertel, D.; Diemant, T.; Bonatto Minella, C.; Bergfeldt, T.; Dittmeyer, R.; Behm, R. J.; Fichtner, M.
2018. ACS applied materials & interfaces, 10 (2), 1662–1671. doi:10.1021/acsami.7b13541
Tungsten Powder Injection Molding @ KIT: Achievements and Trends.
Antusch, S.; Hoffmann, J.; Holzer, P.; Klein, A.; Nötzel, D.; Pursche, K.; Rieth, M.; Walter, H.; Weingärtner, T.
2018. 8th Forum on New Materials (CIMTEC 2018), Perugia, Italien, 10.–14. Juni 2018
Characterization of Nanoparticle Batch-To-Batch Variability.
Mülhopt, S.; Diabaté, S.; Dilger, M.; Adelhelm, C.; Anderlohr, C.; Bergfeldt, T.; Gómez de la Torre, J.; Jiang, Y.; Valsami-Jones, E.; Langevin, D.; Lynch, I.; Mahon, E.; Nelissen, I.; Piella, J.; Puntes, V.; Ray, S.; Schneider, R.; Wilkins, T.; Weiss, C.; Paur, H.-R.
2018. Nanomaterials, 8 (5), Article: 311. doi:10.3390/nano8050311
Recrystallization and composition dependent thermal fatigue response of different tungsten grades.
Pintsuk, G.; Antusch, S.; Weingärtner, T.; Wirtz, M.
2018. International journal of refractory metals & hard materials, 72, 97–103. doi:10.1016/j.ijrmhm.2017.11.039
2017
Direct Evidence of Significant Cation Intermixing in Upconverting Core@Shell Nanocrystals : Toward a New Crystallochemical Model.
Hudry, D.; Busko, D.; Popescu, R.; Gerthsen, D.; Abeykoon, A. M. M.; Kübel, C.; Bergfeldt, T.; Richards, B. S.
2017. Chemistry of materials, 29 (21), 9238–9246. doi:10.1021/acs.chemmater.7b03118
Dependence of the constitution, microstructure and electrochemical behaviour of magnetron sputtered Li-Ni-Mn-Co-O thin film cathodes for lithium-ion batteries on the working gas pressure and annealing conditions.
Strafela, M.; Fischer, J.; Music, D.; Chang, K.; Schneider, J.; Leiste, H.; Rinke, M.; Bergfeldt, T.; Seifert, H. J.; Ulrich, S.
2017. International journal of materials research, 108 (11), 879–886. doi:10.3139/146.111552
Interlaboratory study of the heat capacity of LiNi1/3Mn1/3Co1/3O2 (NMC111) with layered structure.
Cupid, D. M.; Gotcu, P.; Beutl, A.; Bergfeldt, T.; Giel, H.; Henriques, D.; Kozlov, A.; Masoumi, M.; Seidel, J.; Flandorfer, H.; Markus, T.; Mertens, F.; Schmid-Fetzer, R.; Seifert, H. J.
2017. International journal of materials research, 108 (11), 1008–1021. doi:10.3139/146.111571
Processing of complex near-net-shaped tungsten parts by PIM.
Antusch, S.; Hoffmann, J.; Klein, A.; Rieth, M.; Weingärtner, T.
2017. 18th International Conference on Fusion Reactor Materials (ICFRM-18) (2017), Aomori, Japan, 5.–17. November 2017
Rapid material development and processing of complex near-net-shaped parts by PIM.
Antusch, S.; Hoffmann, J.; Klein, A.; Knabl, W.; Rieth, M.; Weingärtner, T.
2017. 19th Plansee Seminar, Reutte, Austria, 29th May - 2nd June 2017
Recrystallization and composition dependent thermal fatigue response of different tungsten grades.
Pintsuk, G.; Antusch, S.; Weingärtner, T.; Wirtz, M.
2017. 19th Plansee Seminar, Reutte, AT , 29.05.-02.06,2017
Ductilisation of tungsten (W): Tungsten laminated composites.
Reiser, J.; Garrison, L.; Greuner, H.; Hoffmann, J.; Weingärtner, T.; Jäntsch, U.; Klimenkov, M.; Franke, P.; Bonk, S.; Bonnekoh, C.; Sickinger, S.; Baumgärtner, S.; Bolich, D.; Hoffmann, M.; Ziegler, R.; Konrad, J.; Hohe, J.; Hoffmann, A.; Mrotzek, T.; Seiss, M.; Rieth, M.; Möslang, A.
2017. International journal of refractory metals & hard materials, 69, 66–109. doi:10.1016/j.ijrmhm.2017.07.013
Cu-Zr nanoglasses : Atomic structure, thermal stability and indentation properties.
Nandam, S. H.; Ivanisenko, Y.; Schwaiger, R.; Śniadecki, Z.; Mu, X.; Wang, D.; Chellali, R.; Boll, T.; Kilmametov, A.; Bergfeldt, T.; Gleiter, H.; Hahn, H.
2017. Acta materialia, 136, 181–189. doi:10.1016/j.actamat.2017.07.001
How the Oxidation Stability of Metal Catalysts Defines the Metal-Assisted Chemical Etching of Silicon.
Williams, M. O.; Hiller, D.; Bergfeldt, T.; Zacharias, M.
2017. The journal of physical chemistry <Washington, DC> / C, 121 (17), 9296–9299. doi:10.1021/acs.jpcc.6b12362
Oxidation behavior of Ti 2 AlC in the temperature range of 1400 °C–1600 °C in steam.
Tang, C.; Steinbrück, M.; Große, M.; Bergfeldt, T.; Seifert, H. J.
2017. Journal of nuclear materials, 490, 130–142. doi:10.1016/j.jnucmat.2017.03.016
Integrated Research as Key to the Development of a Sustainable Geothermal Energy Technology.
Meller, C.; Bremer, J.; Ankit, K.; Baur, S.; Bergfeldt, T.; Blum, P.; Canic, T.; Eiche, E.; Gaucher, E.; Hagenmeyer, V.; Heberling, F.; Held, S.; Herfurth, S.; Isele, J.; Kling, T.; Kuhn, D.; Mayer, D.; Müller, B.; Nestler, B.; Neumann, T.; Nitschke, F.; Nothstein, A.; Nusiaputra, Y.; Orywall, P.; Peters, M.; Sahara, D.; Schäfer, T.; Schill, E.; Schilling, F.; Schröder, E.; Selzer, M.; Stoll, M.; Wiemer, H.-J.; Wolf, S.; Zimmermann, M.; Kohl, T.
2017. Energy technology, 5 (7), 965–1006. doi:10.1002/ente.201600579
2016
Scaling und Ausgasung in Geothermieanlagen. Einflussfaktoren, Kinetik, Inhibitoren und technische Maßnahmen.
Canic, T.; Kuhn, D.; Bergfeldt, T.; Seibt, A.; Nowak, K.; Thorwart, K.; Wolfgramm, M.; Geisinger, W.
2016. TIB
The influence of cycling temperature and cycling rate on the phase specific degradation of a positive electrode in lithium ion batteries: A post mortem analysis.
Darma, M. S. D.; Lang, M.; Kleiner, K.; Mereacre, L.; Liebau, V.; Fauth, F.; Bergfeldt, T.; Ehrenberg, H.
2016. Journal of power sources, 327, 714–725. doi:10.1016/j.jpowsour.2016.07.115
Tin Tungstate Nanoparticles: A Photosensitizer for Photodynamic Tumor Therapy.
Seidl, C.; Ungelenk, J.; Zittel, E.; Bergfeldt, T.; Sleeman, J. P.; Schepers, U.; Feldmann, C.
2016. ACS nano, 10 (3), 3149–3157. doi:10.1021/acsnano.5b03060
Variations in structure and electrochemistry of iron- and titanium-doped lithium nickel manganese oxyfluoride spinels.
Hoeweling, A.; Stenzel, D.; Gesswein, H.; Kaus, M.; Indris, S.; Bergfeldt, T.; Binder, J. R.
2016. Journal of power sources, 315, 269–276. doi:10.1016/j.jpowsour.2016.03.023
Neue Materialentwicklungen /"maßgeschneidertes" Wolfram.
Antusch, S.; Hoffmann, J.; Klein, A.; Rieth, M.; Pursche, K.; Walter, H.; Weingaertner, T.
2016. 5. Jahrestagung des KIT-Zentrums Energie, Blick nach Vorne - Energiesystem 2050, Karlsruhe, 15.Juni 2016
The reprocessing of advanced mixed lithium orthosilicate/metatitanate tritium breeder pebbles.
Leys, O.; Bergfeldt, T.; Kolb, M. H. H.; Knitter, R.; Goraieb, A. A.
2016. Fusion Engineering and Design, 107, 70–74. doi:10.1016/j.fusengdes.2016.04.025
2015
Progress in W alloy development and mass fabrication.
Antusch, S.; Hoffmann, J.; Klein, A.; Rieth, M.; Walter, H.; Weingaertner, T.
2015. European Fusion Programme Workshop 2015, Bled, SLO, November 30 - December 2, 2015
Surface micro-structuring of intercalation cathode materials for lithium-ion batteries a study of laser-assisted cone formation.
Pfleging, W.; Smyrek, P.; Hund, J.; Bergfeldt, T.; Pröll, J.
2015. SPIE Photonics West, San Francisco, Calif., February 7-12, 2015
Surface micro-structuring of intercalation cathode materials for lithium-ion batteries a study of laser-assisted cone formation.
Pfleging, W.; Smyrek, P.; Hund, J.; Bergfeldt, T.; Pröll, J.
2015. Laser-based Micro- and Nanoprocessing IX : Proceedings of SPIE Photonics West, San Francisco, Calif., February 7-12, 2015. Ed.: U. Klotzbach, Article no 93511E, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2077763
Mechanical and microstructural properties of various sintered W-PIM materials.
Antusch, S.; Hoffmann, J.; Klein, A.; Pintsuk, G.; Rieth, M.; Weingaertner, T.
2015. 17th International Conference on Fusion Reactor Materials, Aachen, October 12-16, 2015
Tungsten (W) foil laminates for structural divertor applications.
Reiser, J.; Bonk, S.; Bonnekoh, C.; Hoffmann, J.; Jäntsch, U.; Klimenkov, M.; Hoffmann, A.; Wurster, S.; Nemeth, A.; Franke, P.; Weingärtner, T.; Rieth, M.; Möslang, A.
2015. 17th International Conference on Fusion Reactor Materials, Aachen, October 12- 16, 2015
Constitution and microstructure correlations of magnetron sputtered Li-Ni-Mn-Co-O thin film cathodes for lithium-ion batteries.
Strafela, M.; Fischer, J.; Leiste, H.; Rinke, M.; Bergfeldt, T.; Ulrich, S.; Seifert, H. J.
2015. 3. Jahrestagung des KIT-Zentrums Energie, Karlsruhe, 26. Juni 2014
Mechanical and microstructural investigations of tungsten and doped tungsten materials produced via powder injection molding.
Antusch, S.; Armstrong, D. E. J.; Britton, T. B.; Commin, L.; Gibson, J. S. K. L.; Greuner, H.; Hoffmann, J.; Knabl, W.; Pintsuk, G.; Rieth, M.; Roberts, S. G.; Weingaertner, T.
2015. Nuclear Materials and Energy, 3 (3-4), 22–31. doi:10.1016/j.nme.2015.04.002
Synthesis, variability and stability of nanoparticles.
Paur, H. R.; Mahon, E.; Lynch, I.; Bergfeldt, T.; Diabate, S.; Forsgren, J.; Mülhopt, S.; Bagaria, J. P.; Puntes, V.; Schneider, R.; Weiss, C.; Wilkins, T.; Jiang, Y.
2015. QualityNano Conference, Heraklion, GR, July 15-17, 2015
Influences on the barite precipitation from geothermal brines.
Canic, T.; Baur, S.; Bergfeldt, T.; Kuhn, D.
2015. World Geothermal Congress (WGC 2015), Melbourne, AUS, April 19-24, 2015
Influences on the barite precipitation from geothermal brines.
Canic, T.; Baur, S.; Bergfeldt, T.; Kuhn, D.
2015. World Geothermal Congress (WGC 2015), Melbourne, AUS, April 19-24, 2015, Paper 27009, International Geothermal Association (IGA)
Influence of subsurface microstructure on the running-in of an AlSi alloy.
Linsler, D.; Schlarb, T.; Weingärtner, T.; Scherge, M.
2015. Wear, 332-333, 926–931. doi:10.1016/j.wear.2015.02.044
Electrolyte mixtures based on ethylene carbonate and dimethyl sulfone for Li-ion batteries with improved safety characteristics.
Hofmann, A.; Migeot, M.; Thißen, E.; Schulz, M.; Heinzmann, R.; Indris, S.; Bergfeldt, T.; Lei, B.; Ziebert, C.; Hanemann, T.
2015. ChemSusChem, 8, 1892–1900. doi:10.1002/cssc.201500263
Tungsten (W) laminate pipes for innovative high temperature energy conversion systems.
Reiser, J.; Rieth, M.; Möslang, A.; Greuner, H.; Armstrong, D. E. J.; Denk, T.; Gräning, T.; Hering, W.; Hoffmann, J.; Leiste, H.; Mrotzek, T.; Pippan, R.; Schulmeyer, W.; Weingärtner, T.; Zabernig, A.
2015. Advanced engineering materials, 17 (4), 491–501. doi:10.1002/adem.201400204
Tungsten laminates made of ultrafine-grained (UFG) tungsten foil. Ageing of tungsten-titanium (W-Ti) laminates.
Reiser, J.; Franke, P.; Weingärtner, T.; Hoffmann, J.; Hoffmann, A.; Rieth, M.
2015. International Journal of Refractory Metals and Hard Materials, 51, 264–274. doi:10.1016/j.ijrmhm.2015.04.032