Structural relaxation of Zr60Al15Ni25 amorphous ribbon: experimental evidence of the electrical resistivity

被引：4

作者：

Wang, Zhizhi ^{[1
]}

Liu, Lanjun ^{[1
]}

Li, Liang ^{[1
]}

Li, Xiaoyun ^{[1
]}

Zu, Fangqiu ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China

来源：

PHASE TRANSITIONS | 2013年 / 86卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Zr60Al15Ni25 amorphous ribbon; structural relaxation; resistivity; thermal history; BULK METALLIC-GLASS; CRYSTALLIZATION PROCESS; TRANSITION TEMPERATURE; SUPERCOOLED LIQUID; FORMING ABILITY; VISCOSITY; KINETICS; BEHAVIOR; ALLOY;

D O I：

10.1080/01411594.2012.687107

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

In order to study the structural relaxation of the Zr60Al15Ni25 amorphous ribbon, the electrical resistivity was experimentally investigated. The changes in the resistivity before glass transition temperature were observed. Two temperature points (423K and 573K) were chosen for cyclic heating experiments. The results showed that both irreversibility and reversibility of structural changes existed in amorphous alloys, which were related to the selected temperature and cycle times. Based on the scattering mechanism of electron conduction in metal, the structural defects model was used to explain the changes of electrical resistivity. The sample was in a highly disorder state after experienced thermal cycling of high temperature (573K). The number and kind of atoms may be changed to increase the crystallisation range.

引用

页码：396 / 403

页数：8

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