Zobrazeno 1 - 6 of 6 pro vyhledávání: '"M. J. Portmann"'
1
The type of order in Cu–10at.% Au—evidence from the diffuse scattering of X-rays
Autor: Bernd Schönfeld, S. Y. Yu, Gernot Kostorz, M. J. Portmann
Publikováno v: Acta Materialia. 47:1413-1416
In a recent publication, Kuhlmann et al. (Acta mater., 1997, 45, 3319) claimed Cu–10 at.% Au to be long-range ordered at temperatures above 473 K and as high as 723 K. This is in contrast to the generally accepted phase diagram where this region is
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4849c5c8720963da13e4a33d373f5aa7
https://doi.org/10.1016/s1359-6454(99)00035-x
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2
Local order inPt–47at.%Rh measured with x-ray and neutron scattering
Autor: Joachim Kohlbrecher, M. J. Portmann, M. Kompatscher, Bruno Demé, G. Kostorz, Bernd Schönfeld, Ch. Steiner, A. Mazuelas, T. Metzger
Publikováno v: Physical Review B. 71
Ch. Steiner,1 B. Schonfeld,1 M. J. Portmann,1,* M. Kompatscher,1,† G. Kostorz,1 A. Mazuelas,2 T. Metzger,2 J. Kohlbrecher,3 and B. Deme4 1ETH Zurich, Institute of Applied Physics, CH-8093 Zurich, Switzerland 2ESRF, F-38043 Grenoble, France 3Paul Sc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b473142bfea8939e93968331b5855e4
https://doi.org/10.1103/physrevb.71.104204
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3
Evaluation of diffuse neutron scattering at elevated temperatures and local decomposition in Ni-Au
Autor: Joachim Kohlbrecher, Bernd Schönfeld, F. Altorfer, Gernot Kostorz, M. J. Portmann
Publikováno v: Physical Review B. 68
It is demonstrated that in the diffuse neutron scattering of alloys at elevated temperatures (i) the temperature dependence of the linear absorption coefficient is the reason for problems encountered hitherto in the evaluation of diffuse wide-angle s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::af8d91b1eef4f82a1754c21778b0e660
https://doi.org/10.1103/physrevb.68.012103
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4
Analytical behavior of short-range order scattering of Cu-rich Cu-Mn near theΓpoint
Autor: Joachim Kohlbrecher, M. J. Portmann, Gernot Kostorz, Bernd Schönfeld
Publikováno v: Physical Review B. 66
Small-angle neutron scattering with scattering vectors in the range of 0.01 to 0.17 reciprocal lattice units was measured for a single crystal of Cu-17.2 at.% Mn aged at 483 K. At large scattering vectors, a directional dependence of the scattering i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60398f7bed8f03de6dacbf0ef1b24df3
https://doi.org/10.1103/physrevb.66.100102
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5
Short-range order in Ni-8.4 at.% Au above the miscibility gap
Autor: F. Altorfer, Bernd Schönfeld, Gernot Kostorz, M. J. Portmann
Publikováno v: Physical Review B. 65
The elastic diffuse neutron scattering was measured for a Ni-8.4 at.% Au single crystal above the miscibility gap at 1083 K. The Ni-58 isotope was used to reduce the incoherent scattering. In contrast to previous x-ray investigations, short-range ord
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f42816f5c41850938d0e870ce64e5be5
https://doi.org/10.1103/physrevb.65.024110
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