Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Alexander Brodyanski"'
Autor:
Daniel Hiller, Julian López-Vidrier, Sebastian Gutsch, Margit Zacharias, Michael Wahl, Wolfgang Bock, Alexander Brodyanski, Michael Kopnarski, Keita Nomoto, Jan Valenta, Dirk König
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
Abstract Boron (B) doping of silicon nanocrystals requires the incorporation of a B-atom on a lattice site of the quantum dot and its ionization at room temperature. In case of successful B-doping the majority carriers (holes) should quench the photo
Externí odkaz:
https://doaj.org/article/aa3a48c9bf124fddb07cb48c20ef97e0
Autor:
Marco Battiato, Sascha Keller, Marco Rahm, Dennis M. Nenno, Garik Torosyan, Jörg Lösch, Alexander Brodyanski, Rolf Binder, Dominik Sokoluk, Rene Beigang, Evangelos Th. Papaioannou, Laura Scheuer, Hans Christian Schneider
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-16 (2019)
Scientific Reports
Scientific Reports
Spintronic ferromagnetic/non-magnetic heterostructures are novel sources for the generation of THz radiation based on spin-to-charge conversion in the layers. The key technological and scientific challenge of THz spintronic emitters is to increase th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32a27dcc4b82f30408f9d113ecb8613d
https://doi.org/10.1038/s41598-019-49963-8
https://doi.org/10.1038/s41598-019-49963-8
Autor:
Michael Kopnarski, Klaus Michaelis, Stefan Emrich, A. Ziegltrum, Thomas Lohner, Karsten Stahl, Alexander Brodyanski, Rolf Merz, Bernd-Robert Hoehn
Publikováno v:
Industrial Lubrication and Tribology.
Purpose This paper aims to address the influence of tribofilms and running-in on failures and friction of gears. The operation regime of gears is increasingly shifted to mixed and boundary lubrication, where high local pressures and temperatures occu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::474b48bfa84e65d62b24e7fbbeb83ebe
https://doi.org/10.1108/ilt-09-2018-0356
https://doi.org/10.1108/ilt-09-2018-0356
Autor:
Michael Kopnarski, Jörg Lösch, Alexander Brodyanski, Eberhard Kerscher, Daniel Spriestersbach
Publikováno v:
Materials Science and Technology. 32:1111-1118
At high-strength steels very high cycle fatigue (VHCF) failure always occurs at subsurface inclusions. As a result, the failure shows large scatter and is not observable or predictable prior to failure. In order to understand the mechanisms leading t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04ba2b737f66541e7c204cd51a4f5d01
https://doi.org/10.1080/02670836.2015.1119931
https://doi.org/10.1080/02670836.2015.1119931
Autor:
Daniel Spriestersbach, Michael Kopnarski, Alexander Brodyanski, Eberhard Kerscher, Jörg Lösch
Publikováno v:
Procedia Structural Integrity. 2:1101-1108
It is well known, that high-strength steels do not show a classical fatigue limit and failure occurs still after 107 cycles. The reason for this late failure is that the fatigue properties in the long life region are strongly affected by non-metallic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00b6c197ee3b8556b7a45c9424275173
Autor:
Alexander Brodyanski, Rolf Merz, Tilmann Beck, Michael Kopnarski, Marek Smaga, Matthias W. Klein
Publikováno v:
Materials Characterization. 163:110231
In this study, the morphological, structural and chemical changes during friction loading of a metastable fully austenitic TWIP steel and of a case-hardened carburized 16MnCr5 steel were investigated by various methods. To do so, EFTEM imaging, SAD,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46068d2962a6caf3d6ed68cdfb5c00f0
https://doi.org/10.1016/j.matchar.2020.110231
https://doi.org/10.1016/j.matchar.2020.110231
Autor:
Michael Kopnarski, Jörg Lösch, Alexander Brodyanski, Eberhard Kerscher, Daniel Spriestersbach, P. Grad
Publikováno v:
Fatigue of Materials at Very High Numbers of Loading Cycles ISBN: 9783658245306
High-strength steels do not show a classical fatigue limit and failure still occurs far beyond 107 cycles. The fatigue properties in this very high cycle fatigue (VHCF) region are strongly affected by non-metallic inclusions inside the material. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b97333e69955d7e71167ca51e897159
https://doi.org/10.1007/978-3-658-24531-3_9
https://doi.org/10.1007/978-3-658-24531-3_9
Publikováno v:
Computational Materials Science. 103:77-89
Using molecular dynamics simulation we study scratching of Fe crystals by a hard repulsive tip. Three surface orientations – (1 0 0), (1 1 0), and (1 1 1) – are studied with two scratch directions in each case. We take care to analyze the project
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03262d959b07673b2bcc1a7ef4a5fa21
https://doi.org/10.1016/j.commatsci.2015.03.011
https://doi.org/10.1016/j.commatsci.2015.03.011
Publikováno v:
Conference Papers in Science. 2015:1-11
Oxidation processes in tribological steel contacts are investigated, which are treated in a dry sliding, linear reciprocating model tribometer, by EDX (energy dispersive X-ray spectroscopy), AES (Auger electron spectroscopy), and HREFTEM (high resolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d70a4d597a6d52b3284115a8087268de
https://doi.org/10.1155/2015/515498
https://doi.org/10.1155/2015/515498
Publikováno v:
Tribology Letters. 65
Using molecular dynamics simulation, we study the influence of the tip geometry on indentation and scratching. We focus on the specific case of an Fe (100) surface scratched in $$[0{\bar{1}}{\bar{1}}]$$ direction. Three indenter shapes—spherical, c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e87b81fb4bce5ba786858e24aa1a591
https://doi.org/10.1007/s11249-016-0804-6
https://doi.org/10.1007/s11249-016-0804-6