HIGH-TEMPERATURE PHASE-RELATIONSHIPS IN THE YB-H SYSTEM

被引：6

作者：

IWASIECZKO, W ^{[1
]}

DRULIS, H ^{[1
]}

FRAK, RM ^{[1
]}

机构：

[1] MARIE CURIE SKLODOWSKA UNIV,INST CHEM,PL-20031 LUBLIN,POLAND

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1992年 / 180卷

关键词：

D O I：

10.1016/0925-8388(92)90391-L

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In order to establish the high temperature phase relationships in the Yb-H system, X-ray diffraction and pressure temperature-composition (PTC) investigations have been performed. X-ray investigations were carried out in situ in the high pressure camera-reactor. The existence of three phases - alpha (orthorhombic) and two beta and beta' (cubic) phases - was confirmed. Our measurements have shown that the existence of the beta' phase is restricted to a closed area on the PTC diagram. In the alpha + beta' and beta' + beta two-phase plateaux of the PTC diagram the values of the standard enthalpy and entropy of dissociation of the ytterbium hydrides have been derived.

引用

页码：265 / 270

页数：6

共 8 条

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