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Correlating the State and Properties of Grain Boundaries

Publications

Universality of grain boundary phases in fcc metals: Case study on high-angle [111] symmetric tilt grain boundaries

Author(s): Tobias Brink, Lena Langenohl, Hanna Bishara, and Gerhard Dehm
Published in: Phys. Rev. B, Issue 107, 2023, Page(s) 054103, ISSN 2469-9969
Publisher: American Physical Society
DOI: 10.1103/physrevb.107.054103

Observations of grain-boundary phase transformations in an elemental metal

Author(s): Thorsten Meiners, Timofey Frolov, Robert E. Rudd, Gerhard Dehm, Christian H. Liebscher
Published in: Nature, Issue 579/7799, 2020, Page(s) 375-378, ISSN 0028-0836
Publisher: Nature Publishing Group
DOI: 10.1038/s41586-020-2082-6

Interplay of Chemistry and Faceting at Grain Boundaries in a Model Al Alloy

Author(s): Huan Zhao, Liam Huber, Wenjun Lu, Nicolas J. Peter, Dayong An, Frédéric De Geuser, Gerhard Dehm, Dirk Ponge, Jörg Neugebauer, Baptiste Gault, Dierk Raabe
Published in: Physical Review Letters, Issue 124/10, 2020, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.124.106102

Effect of hybridization in PdAlY-(Ni/Au/Ir) metallic glasses thin films on electrical resistivity

Author(s): Hanna Bishara, P. Kontis, Gerhard Dehm, Jochen M. Schneider, Simon Evertz
Published in: Scripta Materialia, Issue 214, 2022, Page(s) 114681, ISSN 1359-6462
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.scriptamat.2022.114681

Dual phase patterning during a congruent grain boundary phase transition in elemental copper.

Author(s): Lena Frommeyer; Tobias Brink; Rodrigo Freitas; Timofey Frolov; Gerhard Dehm; Christian H. Liebscher
Published in: Nature Communications, Issue 13, 2022, Page(s) 3331, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/s41467-022-30922-3

Advances in in situ nanomechanical testing

Author(s): A. Minor, G. Dehm
Published in: MRS Bulletin, 2019, ISSN 0883-7694
Publisher: Materials Research Society
DOI: 10.1557/mrs.2019.127

Microstructure manipulation by laser-surface remelting of a full-Heusler compound to enhance thermoelectric properties

Author(s): Gomell, Leonie; Haeger, Tobias; Roscher, Moritz; Bishara, Hanna; Heiderhoff, Ralf; Riedl, Thomas; Scheu, Christina; Gault, Baptiste
Published in: Acta Materialia, 2022, Page(s) 117501, ISSN 1359-6454
Publisher: Elsevier BV
DOI: 10.48550/arxiv.2107.07327

Dopant-segregation to grain boundaries controls electrical conductivity of n-type NbCo(Pt)Sn half-Heusler alloy mediating thermoelectric performance

Author(s): Ting Luo, Federico Serrano-Sánchez, Hanna Bishara, Siyuan Zhang, Ruben Bueno Villoro, Jimmy Jiahong Kuo, Claudia Felser, Christina Scheu, G. Jeffrey Snyder, James P. Best, Gerhard Dehm, Yuan Yu, Dierk Raabe, Chenguang Fu, Baptiste Gault
Published in: Acta Materialia, Issue 217, 2021, Page(s) 117147, ISSN 1359-6454
Publisher: Elsevier BV
DOI: 10.1016/j.actamat.2021.117147

Phase decomposition in nanocrystalline Cr0.8Cu0.2 thin films

Author(s): Jay Chakraborty; Tristan Philipp Harzer; Maria Jazmin Duarte; Gerhard Dehm
Published in: Journal of Alloys and Compounds, Issue 888, 2021, ISSN 0925-8388
Publisher: Elsevier BV
DOI: 10.1016/j.jallcom.2021.161391

Dislocation-mediated electronic conductivity in rutile

Author(s): Muhammad, Qaisar; Bishara, Hanna; Porz, Lukas; Dietz, Christian; Ghidelli, Matteo; Dehm, Gerhard; Frömling, Till
Published in: Materials Today Nano, Issue 17, 2022, ISSN 2588-8420
Publisher: Elsevier
DOI: 10.1016/j.mtnano.2021.100171

Tantalum and zirconium induced structural transitions at complex [111] tilt grain boundaries in copper

Author(s): T. Meiners, J.M. Duarte, G. Richter, G. Dehm, C.H. Liebscher
Published in: Acta Materialia, Issue 190, 2020, Page(s) 93-104, ISSN 1359-6454
Publisher: Elsevier BV
DOI: 10.1016/j.actamat.2020.02.064

Decoupling the electrical resistivity contribution of grain boundaries in dilute Fe-alloyed Cu thin films

Author(s): Hanna Bishara, Lena Langenohl, Xuyang Zhou, Baptiste Gault, James P. Best, Gerhard Dehm
Published in: Scripta Materialia, Issue 230, 2023, Page(s) 115393, ISSN 1359-6462
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.scriptamat.2023.115393

Atomistic deformation behavior of single and twin crystalline Cu nanopillars with preexisting dislocations

Author(s): Won-Seok Ko; Alexander Stukowski; Raheleh Hadian; Ali Nematollahi; Jong Bae Jeon; Wonseok Choi; Gerhard Dehm; Jörg Neugebauer; Christoph Kirchlechner; Christoph Kirchlechner; Blazej Grabowski
Published in: Acta Materialia, Issue 197, 2020, Page(s) 54-68, ISSN 1359-6454
Publisher: Elsevier BV
DOI: 10.1016/j.actamat.2020.07.029

Approaches to Measure the Resistivity of Grain Boundaries in Metals with High Sensitivity and Spatial Resolution: A Case Study Employing Cu

Author(s): Hanna Bishara, Matteo Ghidelli, Gerhard Dehm
Published in: ACS Applied Electronic Materials, Issue 2/7, 2020, Page(s) 2049-2056, ISSN 2637-6113
Publisher: American Chemical Society
DOI: 10.1021/acsaelm.0c00311

Implication of grain-boundary structure and chemistry on plasticity and failure

Author(s): Dehm, G., Cairney, J.
Published in: MRS Bulletin, Issue 47, 2022, Page(s) 800-807, ISSN 0883-7694
Publisher: Materials Research Society
DOI: 10.1557/s43577-022-00378-3

Microstates and defects of incoherent Σ3 [111] twin boundaries in aluminum

Author(s): Saba Ahmad; Tobias Brink; Christian H. Liebscher; Gerhard Dehm
Published in: Crossref, Issue 243, 2023, ISSN 1359-6454
Publisher: Elsevier BV
DOI: 10.1016/j.actamat.2022.118499

Microstructure and residual stress evolution in nanocrystalline Cu-Zr thin films

Author(s): J. Chakraborty, T. Oellers, R. Raghavan, A. Ludwig, G. Dehm
Published in: Journal of Alloys and Compounds, Issue 896, 2022, Page(s) 162799, ISSN 0925-8388
Publisher: Elsevier BV
DOI: 10.1016/j.jallcom.2021.162799

Understanding Grain Boundary Electrical Resistivity in Cu: The Effect of Boundary Structure.

Author(s): Hanna Bishara; Subin Lee; Subin Lee; Tobias Brink; Matteo Ghidelli; Matteo Ghidelli; Gerhard Dehm
Published in: "ACS Nano, American Chemical Society, 2021, 15 (10), pp.16607 - 16615. ⟨10.1021/acsnano.1c06367⟩", Issue 1, 2021, Page(s) 16607 - 16615, ISSN 1936-0851
Publisher: American Chemical Society
DOI: 10.48550/arxiv.2108.09148

In situ nanoindentation during electrochemical hydrogen charging: a comparison between front-side and a novel back-side charging approach

Author(s): M. J. Duarte, X. Fang, J. Rao, W. Krieger, S. Brinckmann, G. Dehm
Published in: Journal of Materials Science, Issue 56/14, 2021, Page(s) 8732-8744, ISSN 0022-2461
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s10853-020-05749-2

Thin-Film Microtensile-Test Structures for High-Throughput Characterization of Mechanical Properties

Author(s): T. Oellers, V. G. Arigela, C. Kirchlechner, G. Dehm, A. Ludwig
Published in: ACS Combinatorial Science, 2020, ISSN 2156-8952
Publisher: American Chemical Society
DOI: 10.1021/acscombsci.9b00182

Segregation-Induced Nanofaceting Transition at an Asymmetric Tilt Grain Boundary in Copper

Author(s): Nicolas J. Peter, Timofey Frolov, Maria J. Duarte, Raheleh Hadian, Colin Ophus, Christoph Kirchlechner, Christian H. Liebscher, Gerhard Dehm
Published in: Physical Review Letters, Issue 121/25, 2018, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.121.255502

Synthesis and mechanical testing of grain boundaries at the micro and sub-micro scale

Author(s): Nataliya V. Malyar, Hauke Springer, Jürgen Wichert, Gerhard Dehm, Christoph Kirchlechner
Published in: Materials Testing, Issue 61/1, 2019, Page(s) 5-18, ISSN 0025-5300
Publisher: Carl Hanser Verlag GmbH & Co.
DOI: 10.3139/120.111286

Microstructure, grain boundary evolution and anisotropic Fe segregation in (0001) textured Ti thin films

Author(s): Vivek Devulapalli, Marcus Hans, Prithiv T. Sukumar, Jochen M. Schneider, Gerhard Dehm, C.H. Liebscher
Published in: Acta Materialia, Issue 238, 2022, Page(s) 118180, ISSN 1359-6454
Publisher: Elsevier BV
DOI: 10.1016/j.actamat.2022.118180

Dislocation-enhanced electrical conductivity in rutile TiO2 accessed by room-temperature nanoindentation

Author(s): Hanna Bishara, Hanna Tsybenko, Supriya Nandy, Qaisar Khushi Muhammad, Till Frömling, Xufei Fang, James P. Best, Gerhard Dehm
Published in: Scripta Materialia, Issue 114543, 2022, ISSN 1359-6462
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.scriptamat.2022.114543

Properties and influence of microstructure and crystal defects in Fe2VAl modified by laser surface remelting

Author(s): Leonie Gomell, Moritz Roscher, Hanna Bishara, Eric A. Jägle, Christina Scheu, Baptiste Gault
Published in: Scripta Materialia, Issue 193, 2021, Page(s) 153-157, ISSN 1359-6462
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.scriptamat.2020.10.050

Dislocation plasticity and detwinning under thermal stresses in nanotwinned Ag thin films

Author(s): Maya K. Kini, Claudia Merola, Benjamin Breitbach, Dennis Klapproth, Bastian Philippi, Jean-Baptiste Molin, Christoph Kirchlechner, Gerhard Dehm
Published in: Acta Materialia, Issue 198, 2020, Page(s) 61-71, ISSN 1359-6454
Publisher: Elsevier BV
DOI: 10.1016/j.actamat.2020.07.056

Faceting diagram for Ag segregation induced nanofaceting at an asymmetric Cu tilt grain boundary

Author(s): Nicolas J. Peter, Maria J. Duarte, Christoph Kirchlechner, Christian H. Liebscher, Gerhard Dehm
Published in: Acta Materialia, Issue 214, 2021, Page(s) 116960, ISSN 1359-6454
Publisher: Elsevier BV
DOI: 10.1016/j.actamat.2021.116960

Size scaling in bi-crystalline Cu micropillars containing a coherent twin boundary

Author(s): Reza Hosseinabadi, Heinz Riesch-Oppermann, James P. Best, Gerhard Dehm, Christoph Kirchlechner
Published in: Acta Materialia, Issue 230, 2022, Page(s) 117841, ISSN 1359-6454
Publisher: Elsevier BV
DOI: 10.1016/j.actamat.2022.117841

Probing porosity in metals by electrical conductivity: Nanoscale experiments and multiscale simulations

Author(s): Tobias Kaiser; Gerhard Dehm; Christoph Kirchlechner; Andreas Menzel; Hanna Bishara
Published in: European Journal of Mechanics - A/Solids, 97, Art.-Nr.: 104777, Issue 97, 2023, ISSN 0997-7538
Publisher: Elsevier BV
DOI: 10.5445/ir/1000150636

Aluminum depletion induced by complex co-segregation of carbon and boron in a {\Sigma} 5 [3 1 0] bcc-iron grain boundary

Author(s): Ahmadian, Ali; Scheiber, Daniel; Zhou, Xuyang; Gault, Baptiste; Liebscher, Christian H.; Romaner, Lorenz; Dehm, Gerhard
Published in: Issue 1, 2021
Publisher: arxiv

Automated crystal orientation mapping by precession electron diffraction assisted four-dimensional scanning transmission electron microscopy (4D-STEM) using a scintillator based CMOS detector

Author(s): Jeong, Jiwon; Cautaerts, Niels; Dehm, Gerhard; Liebscher, Christian H.
Published in: Issue 1, 2021
Publisher: Arxiv

Grain Boundary Structure, Phase Transitions and Segregation Phenomena in Copper Alloys

Author(s): Thorsten Meiners
Published in: 2019
Publisher: RUB

Structure, chemistry and nanomechanics of grain boundaries in Cu-Ag alloy

Author(s): Nicolas Jörg Peter
Published in: 2021
Publisher: RUB

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