COMPOSITION DEPENDENCE OF EFFECTIVE VACANCY FORMATION ENTHALPY IN COPPER-RICH BRASS AS DEDUCED FROM THRESHOLD TEMPERATURE FOR POSITRON TRAPPING IN VACANCIES

被引：20

作者：

SCHULTZ, PJ

JACKMAN, TE

FABIAN, J

WILLIAMS, EA

MACDONALD, JR

MACKENZIE, IK

机构：

来源：

CANADIAN JOURNAL OF PHYSICS | 1978年 / 56卷 / 08期

关键词：

Compendex;

D O I：

10.1139/p78-140

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The temperature dependence of the Doppler-broadened positron annihilation lineshape has been measured for 13 brass specimens with compositions varying from 0 to 48% by weight of Zn. The vacancy formation enthalpy deduced from these measurements shows a linear decrease of 22% with increasing Zn concentration through the alpha phase and a further 31% decrease on changing from fcc to bcc structure.

引用

页码：1077 / 1083

页数：7

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