Zr-Gd合金水素化物の機械的，熱的特性に及ぼす合金組成並びに水素濃度の影響

摘要

Three kinds of metal hydride, Zr hydrides, Gd hydrides, and the hydrides of Zr-Gd alloys (Zr : Gd = 10 : 1, 8 : 1, 6 : 1), were prepared and their mechanical and thermal properties were examined. It was confirmed that the hydrides of Zr-Gd alloys were composed of mixtures of Zr hydrides and Gd hydrides. We succeeded in formulating empirical equations describing the density, Vickers hardness, Young's modulus, heat capacity, and thermal diffusivity of the hydrides of Zr-Gd alloys.%Zr，Gd合金水素化物（Zr:Gd＝10:1，8:1，6:1），Zr 水素化物およびGd水素化物を作製し，その相状態，微細構造ならびに機械的，熱的特性を評価した。Zr-Gd合金水素化物の相状態と微細構造をXRD測定，SEM観察，EDXにより分析したところ，Zr-Gd合金水素化物の相状態として以下の事実が判明した。