CHEMICAL ACTIVITIES IN THE SOLID-SOLUTION OF HF IN NI3AL

被引：11

作者：

ALBERS, M ^{[1
]}

BABA, MS ^{[1
]}

KATH, D ^{[1
]}

MILLER, M ^{[1
]}

HILPERT, K ^{[1
]}

机构：

[1] FORSCHUNGSZENTRUM JULICH KFA, INST REAKTORWERKSTOFFE, POSTFACH 1913, W-5170 JULICH, GERMANY

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1992年 / 96卷 / 11期

关键词：

CHEMICAL BOND; MASS SPECTROMETRY; MATERIALS PROPERTIES; METALS; THERMODYNAMICS;

D O I：

10.1002/bbpc.19920961126

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 vaporization of the alloy samples of the compositions (Ni3Al)1-xHfx, x = 0, 0.010, 0.030, 0.052, 0.070, 0.089, and 0.100, as well as Ni0.75Al0.25-xHfx, x = 0.020, 0.040, 0.060, 0.080, and 0.100, was investigated at temperatures between 1361 and 1680 K in order to obtain information on the chemical bond in the solid solution of the gamma' phase of the type Ni3Al. The partial pressures of Ni and Al were determined by calibration with pure nickel. Chemical activities and excess chemical potentials were evaluated for the solid alloys below the temperature of incipient melting and also in part for the melt. The excess chemical potentials obtained for the gamma' phase indicate the substitution of Hf for Al in the gamma' or Ni3Al phase.

引用

页码：1663 / 1668

页数：6