Standard enthalpies of formation of some alloys formed between group IV elements and group VIII elements, determined by high-temperature direct synthesis calorimetry - I. Alloys of (Ti,Zr,Hf) with (Rh,Pd,Pt)

被引：22

作者：

Guo, QT ^{[1
]}

Kleppa, OJ ^{[1
]}

机构：

[1] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 266卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

enthalpy of formation; titanium alloys; zirconium alloys; hafnium alloys; high temperature direct synthesis calorimetry;

D O I：

10.1016/S0925-8388(97)00484-2

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：

The standard enthalpies of formation of ten alloys formed between Group TV elements (Ti, Zr, Hf) and Group VIII elements (Rh, Pd, Pt) in the periodic table have been determined or redetermined by high-temperature direct synthesis calorimetry at 1477 +/- 2 K. The following values of Delta H-f(0) (in kJ (mol atom)(-1)) are reported: RhTi, -74.4 +/- 0.8; RhZr, -79.0 +/- 1.2; PdTi, -55.3 +/- 1.8; PdZr, -66.1 +/- 1.1; PdHf, -69.5 +/- 1.7; Pd3Ti, -65.0 +/- 0.9; Pd3Zr, -84.4 +/- 1.7; Pd3Hf, -88.5 +/- 1.4, PtTi, -90.7 +/- 2.8; PtZr, -104.1 +/- 1.8. The results are compared with earlier data in the literature and with predicted values from the Miedema model. (C) 1998 Elsevier Science S.A.

引用

页码：224 / 229

页数：6

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