Different pathways of phase transition in a V-Si system driven by mechanical alloying

被引：6

作者：

Liu, L ^{[1
]}

Lu, L

Lai, MO

Magini, M

Fei, GT

Zhang, LD

机构：

[1] Natl Univ Singapore, Dept Mech & Prod Engn, Singapore 119260, Singapore

[2] ENEA Casaccia, NUMA, INN, Roma, Italy

[3] Acad Sinica, Inst Solid State Phys, Hefei 230031, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 1998年 / 33卷 / 04期

关键词：

intermetallic compounds; electron microscopy; X-ray diffraction; phase transitions;

D O I：

10.1016/S0025-5408(97)00238-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Solid state reactions induced by mechanical alloying of an elemental powder mixture of V and Si with a composition of V75Si25 were investigated using X-ray diffraction and scanning and transmission electron microscopy. It was found that the phase transitions in this system are closely related to the milling intensity. High-energy milling mainly causes the formation of intermetallic compounds, whereas low-energy milling leads to amorphization. The thermodynamics and kinetics related to the different pathways of V-Si phase transition are briefly discussed in this paper. The effect of air contamination on phase transition is also addressed. (C) 1998 Elsevier Science Ltd.

引用

页码：539 / 545

页数：7

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