<報文>非化学量論TiNi化合物の電気抵抗-温度曲線に及ぼす熱サイクル効果

概要

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The effects of thermal cycles on the resistivity-temperature curves of nonstoichiometric TiNi compounds (Ti-50.2 at% and 50.8 at% Ni) were investigated. 1) Contrary to Wang's result, the effects of thermal cycles appeared by complete cycles as well as incomplete cycles. But the former effects were less than the latter. 2) The effects of thermal cycles increased with the increase of Ni concentration. 3) The peak of resistivity-temperature curve appeared without thermal cycles on the hot swaged specimen. 4) In the temperature range in which resistivity peak appears, X-ray diffraction pattern was interpreted by the appearance of transition phase reported by Dautovich et al. The cause of the promotion of the formation of this phase may be the defects such as dislocation induced by the martensitic transformation.
東北大学の論文
1972-11-15