<報文>TiNiの中性子回折

概要

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TiNi compound has various unique physical and mechanical properties, for example, "shape memory effect". Martensitic transformation may be one of the causes of these properties, which is not obvious. Crystal structures of this compound transform with stress and temperature change. But these crystal structures have not been determined because of the disagreement with the reported experimental results of many investigators. Recently Wang et al. reported that the parent phase and the martensite phase may be consisted of the B2 (CsCl) and P3^^-ml structure and the P1^^-, P1 and P6/m structure respectively. In order to clarify these crystal structures, the parent phase and the martensite phase were investigated by means of neutron diffraction method using polycrystals. By the obtained diffraction patterns, the parent phase and the martensite phase are interpreted as CsCl structure and monoclinic structure respectively.
東北大学の論文
1972-11-15