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kauffmann

Dr.-Ing. Alexander Kauffmann

Abteilungsleiter
Physikalische Metall­kunde
Gruppe: PhM
Sprechstunden: nach Vereinbarung
Raum: 375 Geb. 10.91
Tel.: +49 721 608 42346
Fax: +49 721 608 48044
alexander kauffmannPko4∂kit edu

Karlsruher Institut für Technologie (KIT)
Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK)
Campus Süd
Engelbert-Arnold-Straße 4
76131 Karlsruhe

Gebäude 10.91



Hier finden Sie die Abteilung Physikalische Metallkunde.

Lebenslauf

seit 07.2016 Leiter der Abteilung Physikalische Metallkunde
seit 08.2014 Abteilung Physikalische Metallkunde des Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK) des Karlsruher Institut für Technologie (KIT)
09.2007 - 07.2014 Abteilung Metallphysik am Institut für Metallische Werkstoffe des Leibniz-Instituts für Festkörper- und Werkstoffforschung Dresden (IFW Dresden)
12.2009 - 05.2014 Promotion an der Fakultät für Maschinenwesen der TU Dresden
Dissertation: "Gefügeverfeinerung durch mechanische Zwillingsbildung in Kupfer und Kupfermischkristalllegierungen"
10.2004 - 11.2009 Studium Werkstoffwissenschaft an der TU Dresden
Diplomarbeit: "Eisenpniktidsupraleiter in gepulsten Magnetfeldern bis μ0H = 50 T"
(verfügbar auf Anfrage)

Alexander Kauffmanns Publikationen können Sie anhand seiner Researcher-ID bzw. seiner Researchgate oder Google Scholar-Accounts nachvollziehen.

Auszeichnungen

  • Nachwuchspreis der Deutschen Gesellschaft für Materialkunde 2013
  • Förderpreis des Deutsches Kupferinstituts 2014
  • Tschirnhaus-Plakette des Leibniz-Instituts für Festkörper- und Werkstoffforschung Dresden e. V. 2014
  • Postdoktoranden-Stipendium der Carl Zeiss Stiftung 2015-2017

Veröffentlichungen


2019
On the oxidation mechanism of refractory high entropy alloys [in press].
Müller, F.; Gorr, B.; Christ, H.-J.; Müller, J.; Butz, B.; Chen, H.; Kauffmann, A.; Heilmaier, M.
2019. Corrosion science, 108161. doi:10.1016/j.corsci.2019.108161
Crystallographic ordering in a series of Al-containing refractory high entropy alloys Ta-Nb-Mo-Cr-Ti-Al.
Chen, H.; Kauffmann, A.; Seils, S.; Boll, T.; Liebscher, C. H.; Harding, I.; Kumar, K. S.; Szabó, D. V.; Schlabach, S.; Kauffmann-Weiss, S.; Müller, F.; Gorr, B.; Christ, H.-J.; Heilmaier, M.
2019. Acta materialia. doi:10.1016/j.actamat.2019.07.001
Microstructural evolution during creep of lamellar eutectoid and off-eutectoid FeAl/FeAl2 alloys.
Schmitt, A.; Kumar, K. S.; Kauffmann, A.; Heilmaier, M.
2019. Intermetallics, 107, 116–125. doi:10.1016/j.intermet.2019.01.015
Constitution, oxidation and creep of eutectic and eutectoid Mo-Si-Ti alloys.
Schliephake, D.; Kauffmann, A.; Cong, X.; Gombola, C.; Azim, M.; Gorr, B.; Christ, H.-J.; Heilmaier, M.
2019. Intermetallics, 104, 133–142. doi:10.1016/j.intermet.2018.10.028
2018
Development of Oxidation Resistant Refractory High Entropy Alloys for High Temperature Applications: Recent Results and Development Strategy.
Gorr, B.; Mueller, F.; Christ, H.-J.; Chen, H.; Kauffmann, A.; Schweiger, R.; Szabo, D. V.; Heilmaier, M.
2018. 147th Annual Meeting & Exhibition Supplemental Proceedings (TMS), Phoenix, Arizona, March 11-15, 2018, 647–659, Springer, Cham. doi:10.1007/978-3-319-72526-0_61
Peculiarities of deformation of CoCrFeMnNi at cryogenic temperatures.
Tirunilai, A. S.; Sas, J.; Weiss, K.-P.; Chen, H.; Szabó, D. V.; Schlabach, S.; Haas, S.; Geissler, D.; Freudenberger, J.; Heilmaier, M.; Kauffmann, A.
2018. Journal of materials research, 1–14. doi:10.1557/jmr.2018.252
Contribution of Lattice Distortion to Solid Solution Strengthening in a Series of Refractory High Entropy Alloys.
Chen, H.; Kauffmann, A.; Laube, S.; Choi, I.-C.; Schwaiger, R.; Huang, Y.; Lichtenberg, K.; Müller, F.; Gorr, B.; Christ, H.-J.; Heilmaier, M.
2018. Metallurgical and materials transactions / A, 49 (3), 772–781. doi:10.1007/s11661-017-4386-1
Phase Evolution in and Creep Properties of Nb-Rich Nb-Si-Cr Eutectics.
Gang, F.; Kauffmann, A.; Heilmaier, M.
2018. Metallurgical and materials transactions / A, 49 (3), 763–771. doi:10.1007/s11661-017-4367-4
2017
Microstructure Formation and Resistivity Change in CuCr during Rapid Solidification.
Hauf, U.; Kauffmann, A.; Kauffmann-Weiss, S.; Feilbach, A.; Boening, M.; Mueller, F. E. H.; Hinrichsen, V.; Heilmaier, M.
2017. Metals, 7 (11), Art.Nr. 478. doi:10.3390/met7110478
Effect of microalloying with silicon on high temperature oxidation resistance of novel refractory high-entropy alloy Ta-Mo-Cr-Ti-Al.
Müller, F.; Gorr, B.; Christ, H.-J.; Chen, H.; Kauffmann, A.; Heilmaier, M.
2017. Materials at high temperatures, 35 (1-3), 168–176. doi:10.1080/09603409.2017.1389115
Creep of binary Fe-Al alloys with ultrafine lamellar microstructures.
Schmitt, A.; Kumar, K. S.; Kauffmann, A.; Li, X.; Stein, F.; Heilmaier, M.
2017. Intermetallics, 90, 180–187. doi:10.1016/j.intermet.2017.07.016
Combinatorial exploration of the high entropy alloy system Co-Cr-Fe-Mn-Ni.
Kauffmann, A.; Stüber, M.; Leiste, H.; Ulrich, S.; Schlabach, S.; Szabo, D. V.; Seils, S.; Gorr, B.; Chen, H.; Seifert, H.-J.; Heilmaier, M.
2017. Surface and coatings technology, 325, 174–180. doi:10.1016/j.surfcoat.2017.06.041
Face Centred Cubic Multi-Component Equiatomic Solid Solutions in the Au-Cu-Ni-Pd-Pt System.
Freudenberger, J.; Rafaja, D.; Geissler, D.; Giebeler, L.; Ullrich, C.; Kauffmann, A.; Heilmaier, M.; Nielsch, K.
2017. Metals, 7 (4), Art. Nr.: 135. doi:10.3390/met7040135
Enhanced Oxidation Resistance of Mo-Si-B-Ti Alloys by Pack Cementation.
Schliephake, D.; Gombola, C.; Kauffmann, A.; Heilmaier, M.; Perepezko, J. H.
2017. Oxidation of metals, 88 (SI, 3-4), 267–277. doi:10.1007/s11085-017-9730-8
High-Temperature Oxidation Behavior of Refractory High-Entropy Alloys : Effect of Alloy Composition.
Gorr, B.; Müller, F.; Azim, M.; Christ, H.-J.; Müller, T.; Chen, H.; Kauffmann, A.; Heilmaier, M.
2017. Oxidation of metals, 88 (3-4), 339–349. doi:10.1007/s11085-016-9696-y
2016
High temperature oxidation behavior of an equimolar refractory metal-based alloy 20Nb-20Mo-20Cr-20Ti-20Al with and without Si addition.
Gorr, B.; Mueller, F.; Christ, H.-J.; Mueller, T.; Chen, H.; Kauffmann, A.; Heilmaier, M.
2016. Journal of alloys and compounds, 688, Part B, 468–477. doi:10.1016/j.jallcom.2016.07.219
Al-Ti Particulate Composite : Processing and Studies on Particle Twinning, Microstructure, and Thermal Stability.
Yadav, D.; Bauri, R.; Kauffmann, A.; Freudenberger, J.
2016. Metallurgical and materials transactions / A, 47 (8), Art.Nr. 4226–4238. doi:10.1007/s11661-016-3597-1
Orientation relationship of eutectoid FeAl and FeAl₂.
Scherf, A.; Kauffmann, A.; Kauffmann-Weiss, S.; Scherer, T.; Li, X.; Stein, F.; Heilmaier, M.
2016. Journal of applied crystallography, 49 (2), 442–449. doi:10.1107/S1600576716000911
Microstructure and mechanical properties at elevated temperatures of a new Al-containing refractory high-entropy alloy Nb-Mo-Cr-Ti-Al.
Chen, H.; Kauffmann, A.; Gorr, B.; Schliephake, D.; Seemüller, C.; Wagner, J. N.; Christ, H.-J.; Heilmaier, M.
2016. Journal of alloys and compounds, 661, 206–215. doi:10.1016/j.jallcom.2015.11.050
Microstructure Evolution in a New Refractory High-Entropy Alloy W-Mo-Cr-Ti-Al.
Gorr, B.; Azim, M.; Christ, H.-J.; Chen, H.; Szabo, D. V.; Kauffmann, A.; Heilmaier, M.
2016. Metallurgical and Materials Transactions A, 47, 961–970. doi:10.1007/s11661-015-3246-0
Thermal stability of electrical and mechanical properties of cryo-drawn Cu and CuZr wires.
Kauffmann, A.; Geissler, D.; Freudenberger, J.
2016. Materials Science and Engineering: A, 651, 567–573. doi:10.1016/j.msea.2015.10.119

Frühere Veröffentlichungen

Efficiency of the refinement by deformation twinning in wire drawn single phase copper alloys.
Kauffmann, A.; Freudenberger, J.; Klauss, H.; Schillinger, W.; Sarma, V. S.; Schultz, L.
2015. Materials Science and Engineering A , 624, 71-78. 10.1016/j.msea.2014.11.052 
Solute redistribution during annealing of a cold rolled Cu–Ag alloy.
Gubicza, J.; Hegedus, Z.; Lábár, J.L.; Kauffmann, A.; Freudenberger, J.; Sarma, V. S.
2015. Journal of Alloys and Compounds , 94, 2967-2979. 10.1016/j.jallcom.2014.10.093 
Assessment of the thermodynamic dimension of the stacking fault energy.
Geissler, D.; Freudenberger, J.; Kauffmann, A.; Martin, S.; Rafaja, D.
2014. Philosophical Magazine , 94, 2967-2979. 10.1080/14786435.2014.944606 
Mechanism of nanostructure formation in ball-milled Cu and Cu-3wt% Zn studied by X-ray diffraction line profile analysis.
Khoshkhoo, M. S.; Scudino, S.; Bednarcik, J.; Kauffmann, A.; Bahmanpour, H.; Freudenberger, J.; Scattergood, R.; Zehetbauer, M. J.; Koch, C. C.; Eckert, J.
2014. Journal of Alloys and Compounds , 588, 138-143. 10.1016/j.matchar.2014.02.002 
Glow discharge plasma as a surface preparation tool for microstructure investigations.
Brackmann, V.; Hoffmann, V.; Kauffmann, A.; Helth, A.; Thomas, J.; Wendrock, H.; Freudenberger, J.; Gemming, T.; Eckert, J.
2014. Materials Characterization , 91, 76-88. 10.1016/j.matchar.2014.02.002 
Dynamic recrystallisation and precipitation behaviour of high strength and highly conducting Cu-Ag-Zr-alloys.
Bittner, F.; Yin, S.; Kauffmann, A.; Freudenberger, J.; Klauß, H.; Korpala, G.; Kawalla, R.; Schillinger, W.; Schultz, L.
2014. Materials Science and Engineering A , 597, 139-147. 10.1016/j.msea.2013.12.051 
High strength and ductile ultrafine-grained Cu-Ag alloy through bimodal grain size, dislocation density and solute distribution.
Raju, K. S.; Sarma, V. S.; Kauffmann, A.; Heged?us, Z.; Gubicza, J.; Peterlechner, M.; Freudenberger, J.; Wilde, G.
2013. Acta Materialia , 61, 228-238. 10.1016/j.actamat.2012.09.053 
Properties of cryo-drawn copper with severely twinned microstructure.
Kauffmann, A.; Freudenberger, J.; Klauß, H.; Klemm, V.; Schillinger, W.; Sarma, V. S.; Schultz, L.
2013. Materials Science and Engineering A , 588, 132-141. 10.1016/j.msea.2013.09.022 
Processing of Intermetallic Titanium Aluminide Wires.
Marr, T.; Freudenberger, J.; Kauffmann, A.; Romberg, J.; Okulov, I.; Petters, R.; Scharnweber, J.; Eschke, A.; Oertel, C.-G.; Kühn, U.; Eckert, J.; Skrotzki, W.; Schultz, L.
2013. Metals , 3, 188-201. 10.3390/met3020188 
Grain Refinement and Deformation Mechanisms in Room Temperature Severe Plastic Deformed Mg-AZ31.
Knauer, E.; Freudenberger, J.; Marr, T.; Kauffmann, A.; Schultz, L.
2013. Metals , 3, 283-297. 10.3390/met3030283 
Twinning Phenomena along and beyond the Bain Path.
Kauffmann-Weiss, S.; Kauffmann, A.; Niemann, R.; Freudenberger, J.; Schultz, L.; Fähler, S.
2013. Metals , 3, 319-336. 10.3390/met3040319 
Isotropic behavior of critical current for MgB2 ex situ tapes with 5wt.% carbon addition.
Kario, A.; Grinenko, V.; Kauffmann, A.; Häßler, W.; Rodig, C.; Kováš, P.; Melišek, T.; Holzapfel, B.
2012. Physica C , 483, 222-224. 10.1016/j.physc.2012.07.013 
Severe deformation twinning in pure copper by cryogenic wire drawing.
Kauffmann, A.; Freudenberger, J.; Geissler, D.; Yin, S.; Schillinger,W.; Sarma, V. S.; Bahmanpour, H.; Scattergood, R.; Khoshkhoo, M. S.; Wendrock, H.; Koch, C. C.; Eckert, J.; Schultz, L.
2011. Acta Materialia , 59, 7711-7723. 10.1016/j.actamat.2011.08.042 
Appearance of dislocation-mediated and twinning-induced plasticity in an engineering-grade FeMnNiCr alloy.
Geissler, D.; Freudenberger, J.; Kauffmann, A.; Krautz, M.; Klauss, H.; Voss, A.; Eickemeyer, J.; Schultz, L.
2011. Acta Materialia , 59, 7711-7723. 10.1016/j.actamat.2011.08.040 
Critical current scaling and anisotropy in oxypnictide superconductors.
Kidszun, M.; Haindl, S.; Thersleff, T.; Haenisch, J.; Kauffmann, A.; Iida, K.; Freudenberger, J.; Schultz, L.; Holzapfel, B.
2011. IEEE Transactions on Applied Superconductivity , 106, 137001. 10.1103/PhysRevLett.106.137001 
Jc scaling and anisotropies in Co-doped Ba-122 thin films.
Hänisch, J.; Iida, K.; Haindl, S.; Kurth, F.; Kauffmann, A.; Kidszun, M.; Thersleff, T.; Freudenberger, J.; Schultz, L.; Holzapfel, B.
2011. IEEE Transactions on Applied Superconductivity , 21, 2887-2890. 10.1109/TASC.2010.2100348 
Effect of stacking fault energy on deformation behavior of cryo-rolled copper and copper alloys.
Bahmanpour, H.; Kauffmann, A.; Khoshkhoo, M. S.; Youssef, K. M.; Mula, S.; Freudenberger, J.; Eckert, J.; Scattergood, R. O.; Koch, C. C.
2011. Materials Science and Engineering A , 529, 230-236. 10.1016/j.msea.2011.09.022 
Studies on recrystallization of single-phase copper alloys by resistance measurements.
Freudenberger, J.; Kauffmann, A.; Klauss, H.; Marr, T.; Nenkov, K.; Sarma, V. S. und Schultz, L.
2010. Acta Materialia , 58, 2324-2329. 10.1016/j.actamat.2009.12.018 
Role of stacking fault energy in strengthening due to cryo-deformation of FCC metals.
Sarma, V. S.; Wang, J.; Jian, W. W.; Kauffmann, A.; Conrad, H.; Freudenberger, J.; Zhu, Y. T.
2010. Materials Science and Engineering A , 527, 7624-7630. 10.1016/j.msea.2010.08.015 
High upper critical fields and evidence of weak-link behavior in superconducting LaFeAsO1-xFx thin films.
Haindl, S.; Kidszun, M.; Kauffmann, A.; Nenkov, K.; Kozlova, N.; Freudenberger, J.; Thersleff, T.; Haenisch, J.; Werner, J.; Reich, E.; Schultz, L.; Holzapfel, B.
2010. Physical Review Letters , 104, 77001. 10.1103/PhysRevLett.104.077001 
Damascene lightweight metals.
Marr, T.; Freudenberger, J.; Kauffmann, A.; Scharnweber, J.; Oertel, C.-G.; Skrotzki, W.; Siegel, U.; Kuehn, U.; Eckert, J.; Martin, U.; Schultz, L.
2010. Advanced Engineering Materials , 12, 1191-1197. 10.1002/adem.201000198 
Irreversibility field up to 42 T of GdBa2Cu3O7 thin films grown by PLD and its dependence on deposition parameters.
Rosenzweig, S.; Haenisch, J.; Iida, K.; Kauffmann, A.; Mickel, C.; Thersleff, T.; Freudenberger, J.; Huehne, R.; Holzapfel, B.; Schultz, L.
2010. Superconductor Science and Technology , 23, 105017. 10.1088/0953-2048/23/10/10501 
Microstructural inhomogeneities in CuAgZr alloys due to heavy plastic deformation.
Lyubimova, J.; Freudenberger, J.; Mickel, C.; Thersleff, T.; Kauffmann, A.; Schultz, L.
2010. Materials Science and Engineering A , 527, 606-613. 10.1016/j.msea.2009.08.036