PROTECTION OF GRAPHITE-ELECTRODES FROM OXIDATION

被引：12

作者：

DALLAIRE, S

机构：

[1] Natl Research Council Canada,, Boucherville, Que, Can, Natl Research Council Canada, Boucherville, Que, Can

来源：

SURFACE & COATINGS TECHNOLOGY | 1987年 / 32卷 / 1-4期

关键词：

CARBON - Diffusion - GRAPHITE - Oxidation - PROTECTIVE COATINGS - Heat Resisting - STEELMAKING - Electrodes;

D O I：

10.1016/0257-8972(87)90103-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper is concerned with a study to reduce oxidation of graphite electrodes with an inexpensive protective coating. The proposed coating was designed to lower the graphite loss noticeably during a steel melting operation. This coating is composed basically of two layers that become modified when the coated graphite part is used. The first layer deposited onto graphite acts as a diffusion barrier for carbon. This layer also has to withstand oxidation because pores within graphite could contain oxygen. The second layer behaves as an oxygen retention material. The plasma spraying technique was selected to perform the coating. The coating was found to reduce the graphite loss significantly.

引用

页码：141 / 152

页数：12

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