Bond energy in palladium and platinum-rich alloys with the A4 transition metals

被引:18
作者
Ellner, M [1 ]
机构
[1] Max Planck Inst Met Res, D-70569 Stuttgart, Germany
关键词
transition metal solid solutions; intermetallic compounds; atomic volume; bond energy;
D O I
10.1016/S0925-8388(03)00757-6
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
Unit cell parameters were measured for the binary palladium and platinum-rich alloys containing the A(4) early transition metals (titanium, zirconium and hafnium). The composition dependence of the average atomic volume was investigated for the whole composition range of these binary systems. For the palladium and platinum-rich portions, the partial atomic volume and the partial molar enthalpy of formation are discussed. Both the volumetric and the thermodynamic quantities reveal a strong bond energy between atoms of the heavy A(4) transition metals (zirconium and hafnium) and the heavy A(10) transition metals (palladium and platinum). (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:222 / 227
页数:6
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