THE STRUCTURAL RELAXATION OF CR65FE35 AMORPHOUS POWDER OBTAINED BY MECHANICAL MILLING

被引：7

作者：

XIA, SK ^{[1
]}

BAGGIOSAITOVITCH, E ^{[1
]}

ASSUNCAO, FCR ^{[1
]}

机构：

[1] PUC RJ,DEPT CIENCIA MAT & MET,BR-38008 RIO JANEIRO,BRAZIL

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 196卷 / 1-2期

关键词：

D O I：

10.1016/0925-8388(93)90592-B

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 previous work we have proposed that structurally disordered Cr65Fe35 powder prepared by mechanical milling is an extremely defective system. The powder is composed of random densely packed and random loosely packed atomic configurations. In this work a subsequent annealing of this powder has been performed and the structural relaxation has been followed by X-ray diffraction, Mossbauer spectroscopy and differential scanning calorimetry (DSC). The results indicate that during annealing the random loosely packed atomic configurations relax to the random densely packed ones. For DSC measurements at low heating rate the relaxation covers a large temperature range, while at higher heating rate the relaxation shifts to higher temperatures and exhibits an exothermic peak just below the crystallization temperature.

引用

页码：177 / 181

页数：5

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