Zobrazeno 1 - 10
of 65
pro vyhledávání: '"niemann, robert"'
Autor:
Schwabe, Stefan, Niemann, Robert, Backen, Anja, Wolf, Daniel, Damm, Christine, Walter, Tina, Seiner, Hanus, Heczko, Oleg, Nielsch, Kornelius, Fähler, Sebastian
Publikováno v:
Advanced Functional Materials (2020) 2005715
Martensitic materials show a complex, hierarchical microstructure containing structural domains separated by various types of twin boundaries. Several concepts exist to describe this microstructure on each length scale, however, there is no comprehen
Externí odkaz:
http://arxiv.org/abs/2004.09768
Autor:
Niemann, Robert Ingo
Magnetische Formgedächtnislegierungen sind Festkörper, die eine Phasenumwandlung erster Ordnung von einer hochsymmetrischen Phase (Austenit) zu einer niedersymmetrischen Phase (Martensit) durchlaufen. Dies kann in der Nähe von Raumtemperatur statt
Autor:
Niemann, Robert Ingo
In der magnetischen Formgedächtnislegierung Ni-Co-Mn-In kann eine reversible Umwandlung von einer niedrigsymmetrischen, para- oder antiferromagnetischen Phase (Martensit) in eine hochsymmetrische ferromagnetische Phase (Austenit) sowohl durch eine T
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A28982
https://tud.qucosa.de/api/qucosa%3A28982/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A28982/attachment/ATT-0/
Autor:
Niemann, Robert
Publikováno v:
Academic Journal of Modern Philology. (16):195-202
Externí odkaz:
https://www.ceeol.com/search/article-detail?id=1116011
Autor:
Schleicher, Benjamin, Niemann, Robert, Schwabe, Stefan, Hühne, Ruben, Schultz, Ludwig, Nielsch, Kornelius, Fähler, Sebastian
Publikováno v:
Scientific Reports 7: 14462 (2017)
Tuning functional properties of thin caloric films by mechanical stress is currently of high interest. In particular, a controllable magnetisation or transition temperature is desired for improved usability in magnetocaloric devices. Here, we present
Externí odkaz:
http://arxiv.org/abs/1707.08839
Autor:
Niemann, Robert, Backen, Anja, Kauffmann-Weiss, Sandra, Behler, Christian, Rößler, Ulrich K., Seiner, Hanus, Heczko, Oleg, Nielsch, Kornelius, Schultz, Ludwig, Fähler, Sebastian
Publikováno v:
Acta Materialia Volume 132, Pages 327-334, 2017
Shape memory alloys often show a complex hierarchical morphology in the martensitic state. To understand the formation of this twin-within-twins microstructure, we examine epitaxial Ni-Mn-Ga films as a model system. In-situ scanning electron microsco
Externí odkaz:
http://arxiv.org/abs/1701.04683
Autor:
Gruner, Markus E., Niemann, Robert, Entel, Peter, Pentcheva, Rossitza, Rössler, Ulrich K., Nielsch, Kornelius, Fähler, Sebastian
Publikováno v:
Sci. Rep. 8, page 8489 (2018)
Heusler alloys exhibiting magnetic and martensitic transitions enable applications like magnetocaloric refrigeration and actuation based on the magnetic shape memory effect. Their outstanding functional properties depend on low hysteresis losses and
Externí odkaz:
http://arxiv.org/abs/1701.01562
Autor:
Niemann, Robert, Fähler, Sebastian
Publikováno v:
Journal of Alloys and Compounds, Volume 703, 5 May 2017, Pages 280-288
Modulated martensites play an important role in magnetic shape memory alloys, because all functional properties are closely connected to the twin microstructure and the phase boundary. The nature of the modulated martensites is still unclear. One app
Externí odkaz:
http://arxiv.org/abs/1611.02535