Synthesis of new ceramics from powder mixtures using thermal plasma processing

被引：21

作者：

Fukumasa, O ^{[1
]}

机构：

[1] Yamaguchi Univ, Fac Engn, Dept Elect & Elect Engn, Ube, Yamaguchi 7558611, Japan

来源：

THIN SOLID FILMS | 2001年 / 390卷 / 1-2期

关键词：

thermal plasma processing; plasma jet; synthesis of new ceramics; beta ''-alumina; ferrite particles;

D O I：

10.1016/S0040-6090(01)00922-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The synthesis of thermoelectric materials (beta " -alumina) for the alkali metal thermoelectric converter (AMTEC) has been studied using a newly designed plasma jet reactor. Under not only atmospheric pressure but also low pressure, thin films of beta " -alumina are successfully synthesized for the first time from powder mixtures of alpha -Al2O3, Na2CO3 and MgO. The powder-mixing ratio, jet power and substrate position strongly affect the synthesis of beta " -alumina, which is found to be correlated with jet temperature. Synthesis of ferrite particles is also discussed. Under both atmospheric and lower pressures, ferrite particles are successfully synthesized from powder mixtures of Fe2O3, ZnO, NiO and CuO. In the high temperature region of the plasma jet, ferrite particles with high purity can be synthesized. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：37 / 43

页数：7

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