Mechanical alloying of BiSb semiconducting alloys

被引：30

作者：

Martin-Lopez, R ^{[1
]}

Lenoir, B ^{[1
]}

Devaux, X ^{[1
]}

Dauscher, A ^{[1
]}

Scherrer, H ^{[1
]}

机构：

[1] Ecole Mines, INPL, UHP, UMR 7556 CNRS,Lab Phys Mat, F-54042 Nancy, France

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1998年 / 248卷 / 1-2期

关键词：

Bi-Sb alloys; mechanical alloying; milling parameters;

D O I：

10.1016/S0921-5093(98)00495-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Polycrystalline Bi100-xSbx (x = 7, 10, 12, 15, 22) semiconducting alloys were synthesized by mechanical alloying in order to achieve performant homogeneous thermoelectric materials. The influence of the milling parameters on the final homogeneity and morphology of the powders, such as ball-to-powder weight ratios (BPR = 10:1, 40:1, 92:1) and balls sizes (diameters of 30 and 20 mm), was investigated. Powder samples were characterized by X-ray diffraction, differential scanning calorimetry, scanning electron microscopy and electron microprobe analysis. The results show that the samples obtained with the 10:1 BPR and four balls of 30 mm in diameter present the best homogeneity whatever the alloy composition. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：147 / 152

页数：6

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