Formation of nanocrystals in metallic Zr-Cu-Ni glass

被引：9

作者：

Wang, HR

机构：

[1] Shandong Univ, Minist Educ, Key Lab Liquid Struct & Hered Mat, Jinan 250061, Peoples R China

[2] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

[3] E China Univ Sci & Technol, Coll Resource & Environm Engn, Shanghai 200237, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 347卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

amorphous materials; nanostructured materials; rapid solidification; calorimetry; transmission electron microscopy (TEM);

D O I：

10.1016/S0925-8388(02)00677-1

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：

Differential scanning calorimetry (DSC) and transmission electron microscopy (TEM) are employed to investigate the crystallization behavior in metallic Zr70Cu20Ni10 glass during continuous heating. It is found that the DSC curves of metallic Zr70Cu20Ni10 glass exhibit two exothermic peaks, indicating that the crystallization process proceeds via a double stage mode. TEM microstructural analysis confirms that the first exothermic reaction in the DSC traces of metallic Zr70Cu20Ni10 glass mainly corresponds to the precipitation of the Zr2Cu phase, while the second one corresponds to the formation of nano-scale Zr2Ni particles. Ni plays an important role in the stability of the nanocrystals, and its effect is also discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：101 / 104

页数：4

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