Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Bernd Schönfeld"'
Autor:
Gernot Kostorz, Bernd Schönfeld
Publikováno v:
CHIMIA, Vol 55, Iss 6 (2001)
In an initially homogeneous alloy quenched from high temperature, local ordering and/or phase separation may occur on the way towards thermodynamic equilibrium at a lower temperature. Some of the related diffuse scattering effects, including those ar
Externí odkaz:
https://doaj.org/article/ebf757ca20414eb9ad5b56ade724dbca
Autor:
Bernd Schönfeld, C.R. Sax
Publikováno v:
Acta Materialia. 151:470-477
Diffuse scattering under grazing incidence of a Fe-27.8 at.% Pt (110) surface was measured at RT and 424 K to explore the impact of the Invar behavior in the near-surface region. The quenched-in short-range order does not change between these two tem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04f4f10a83a617e7d0c3cc459343085b
https://doi.org/10.1016/j.actamat.2018.03.047
https://doi.org/10.1016/j.actamat.2018.03.047
Autor:
Bernd Schönfeld, T. Kresse, Torben Boll, J. Zemp, Andrei V. Ruban, P. Boesecke, Oleg E. Peil, Cédric R. Sax, Talaat Al-Kassab, M. Engelke
Publikováno v:
Physical Review B. 99
A quenched-in state of thermal equilibrium (at 723 K) in a single crystal of Cr-Fe-Co-Ni close to equal atomic percent was studied. Atom probe tomography revealed a single-phase state with no signs of long-range order. The presence of short-range ord
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a471d165f80046b8859e9533876cb3c0
https://doi.org/10.1103/physrevb.99.014206
https://doi.org/10.1103/physrevb.99.014206
Indications of the Cu2Zr Laves phase are observed in MD simulations of amorphous Cu64Zr36 upon isothermal holding just above the glass transition temperature. The structural evolution towards Cu2Zr is accompanied by an increase in the fraction of Cu-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2640::8e851f07a973d9e6edc256459cbc3d83
http://hdl.handle.net/20.500.12079/2881
http://hdl.handle.net/20.500.12079/2881
Autor:
M. Engelke, Bernd Schönfeld
Publikováno v:
Acta Materialia. 61:5087-5095
Diffuse scattering was taken from Ni–23.2 at.% Pt (1 0 0) under grazing incidence at 973 K using photons of 10 keV energy. For comparison, bulk Ni–25.6 at.% Pt was also investigated for a state corresponding to 923 K using Mo K α radiation. In b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::368c834d8acaf8b7cb5efe1e34a6b8bf
https://doi.org/10.1016/j.actamat.2013.04.026
https://doi.org/10.1016/j.actamat.2013.04.026
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 29(1)
Neutrons with 14.7 and 34 meV energy were used to determine the elastic and inelastic part of the structure factor for the metallic glass Cu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f130f7dff42008c675bad35dc6e95478
https://pubmed.ncbi.nlm.nih.gov/27830667
https://pubmed.ncbi.nlm.nih.gov/27830667
Autor:
T. C. Kerscher, Stefan Müller, Wolfgang Heckel, Irakli Kalichava, Philip R. Willmott, Jürg Osterwalder, Carlo Bernard, Roland Stania, Huanyao Cun, Bernd Schönfeld, Thomas Greber
Publikováno v:
Physical Review B. 93
The surface segregation profile of an intermetallic compound becomes vertically and laterally modulated upon epitaxial growth of a single-layer hexagonal boron nitride $(h$-BN) nanomesh. $h$-BN on PtRh(111) forms an 11-on-10 superhoneycomb, such as t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19d2e1e2d09b8f0bdc97e9251910bf05
https://doi.org/10.1103/physrevb.93.161402
https://doi.org/10.1103/physrevb.93.161402
Publikováno v:
Solid State Phenomena. :593-601
Single crystals of Ni-25.6 at.% Pt and Ni-87.8 at.% Pt were investigated by diffuse x-ray scattering for states of thermal equilibrium (923 K and 603 K, respectively). The separated short-range order scattering showed local maxima at 100 positions. E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61a7aa65d80fc033973bd7c66b9cb909
https://doi.org/10.4028/www.scientific.net/ssp.172-174.593
https://doi.org/10.4028/www.scientific.net/ssp.172-174.593
Effect of magnetism and atomic order on static atomic displacements in the Invar alloy Fe-27 at.% Pt
Publikováno v:
Physical Review B
Fe-27 at.% Pt was aged at 1123 K and quenched to room temperature (RT) to set up a state of thermal equilibrium. The local atomic arrangement was studied by diffuse x-ray scattering above (at 427 K) and below (at RT) the Curie temperature as well as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::baf28364580faca1d63a0b348d90a1dd
https://doi.org/10.1103/physrevb.92.054205
https://doi.org/10.1103/physrevb.92.054205
Publikováno v:
Ultramicroscopy. 162
Field evaporation of metallic glasses is a stochastic process combined with spatially and temporally correlated events, which are referred to as clustered evaporation (CE). This phenomenon is investigated by studying the distance between consecutive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::414e446bd5a8dd3ca8a6b559537481da
https://pubmed.ncbi.nlm.nih.gov/26724469
https://pubmed.ncbi.nlm.nih.gov/26724469