Phonon Softening and Time Dependence of Elastic Peak Appearing Prior to the Martensitic Transformation in Au-47.5 at % Cd
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概要
- 論文の詳細を見る
There are two distinct martensites called γ^'_2 and ζ^'_2 phases near the equi-atomic composition in AuCd alloy system. The phonon dispersion relation of the [ζζ0]TA_2 branch was measured by inelastic neutron scattering in a Au_<52.5>Cd_<47.5> alloy which produces γ^'_2 martensite. The difficulty of strong neutron absorption was overcome by the use of an isotope ^<114>Cd. The softening was observed at the Brillouin zone boundary and at ζ= 0.35. An elastic peak was observed at ζ= 0.35, but not at the zone boundary. The peculiar time dependent behavior was observed in the elastic peak.
- 社団法人応用物理学会の論文
- 1998-01-15
著者
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Otsuka Kazuhiro
Institute Of Materials Science University Of Tsukuba
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Ohba Takuya
Department Of Materials Science And Engineering Teikyo University
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Raymond Stephane
Brookhaven National Laboratory
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SHAPIRO Stephan
Brookhaven National Laboratory
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Ohba Takuya
Department Of Materials Science And Engineering Shimane University
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OTSUKA Kazuhiro
Institute of Material Science, University of Tsukuba
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