AuCd合金のマルテンサイトの結晶構造と中性子散乱 [in Japanese] Crystal Structure of AuCd Martensite and Neutron Scattering [in Japanese]
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The AuCd is one of the typical alloys which show martensitic transformation. There are two distinct martensites called γ<SUB>2</SUB>' and ζ<SUB>2</SUB>' phases appearing proximate to the composition of Au<SUB>52.5</SUB>Cd<SUB>47.5</SUB> and Au<SUB>50</SUB>Cd<SUB>50</SUB>, respectively. The crystal structure of ζ<SUB>2</SUB>' martensite was solved and it was described to be a superposition of transverse waves whose poralization is ‹110› and wave vector is ‹110›. The phonon dispersion relations were observed for Au<SUB>52.5</SUB>Cd<SUB>47.5</SUB> and Au<SUB>50.5</SUB>Cd<SUB>49.5</SUB> overcoming the difficulty of strong absorption of neutron with an isotope <SUP>114</SUP>Cd. The phonon softening behaviors were observed in addition to the peculiar behavior on Au<SUB>52.5</SUB>Cd<SUB>47.5</SUB>.
X-RAYS 40(5), 329-334, 1998-10-28
The Crystallographic Society of Japan