Structural study of Ni-B ultrafine amorphous alloy during annealed crystallization

被引：0

作者：

Wei, SQ ^{[1
]}

Zhang, XY ^{[1
]}

Liu, WH ^{[1
]}

Wang, XG ^{[1
]}

Yang, HW ^{[1
]}

Yan, WS ^{[1
]}

机构：

[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2001年 / 17卷 / 08期

关键词：

XAFS; XRD; Ni-B ultraine amorphous alloy;

D O I：

10.3866/PKU.WHXB20010817

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：

X-ray absorption fine structure (XAFS) and X-ray diffraction (XRD) have been combined to investigate the structure of Ni-B ultrafine amorphous alloy prepared by chemical reduction during the crystallization process. The results demonstrate that a fcc-like nanocrystalline Ni phase with a medium-range order and a nanocrystalline Ni3B alloy are formed at 573 K where the first exothermic process is observed. At annealing temperature of 773 K, large amount of Ni-B ultrafine amorphous alloy decomposes into metal Ni.

引用

页码：750 / 752

页数：3

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