[1]刘新红,牛智旺,周超杰,等.SiC加热元件在N2气氛下使用损毁机理研究[J].郑州大学学报(工学版),2014,35(03):20-28.[doi:10.3969/j.issn.1671-6833.2014.03.005]
　LlU Xinhong,NIU Zhiwang,ZHOU Chaojie,et al.Damnification Mechanism of SiC Heating Elements Used in N2 Atmosphere[J].Journal of Zhengzhou University (Engineering Science),2014,35(03):20-28.[doi:10.3969/j.issn.1671-6833.2014.03.005]
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SiC加热元件在N2气氛下使用损毁机理研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
35
期数:
2014年03期
页码:
20-28
栏目:
出版日期:
2014-06-30

文章信息/Info

Title:
Damnification Mechanism of SiC Heating Elements Used in N2 Atmosphere
作者:
刘新红; 牛智旺; 周超杰; 王大军; 方岩震; 刘锴
Author(s):
LlU Xinhong; NIU Zhiwang; ZHOU Chaojie; WANG Dajun; FANG Yanzhen; LlU Kai
1. Hligh Temperature Ceramies lnstitute, Zhengzhou University, Zhengzhou 450052, China; 2. Boma Reractories Group, Xinxiang 453002，China
Keywords:
SiC heating elements ;  N2 atmosphere ;  damnification mechanism
分类号:
TQI75.1
DOI:
10.3969/j.issn.1671-6833.2014.03.005
文献标志码:
A
Abstract:
Phase composition and mierostructure of SiC heating elements used in N2 atmosphere have been analyzed by XRD and SEM, and the damnification mechanism of SiC heating elements is discussed. The resultsshow: there are many pores in unchanged part which provide channels for the corrosive gas leading to damnifi-cation, and the impurities Si, K2O and FeSi would accelerate damnification during use ; a protective film inthe surface of SiC cannot fom in N2 atmosphere due to low pressure of O2,and the trace O2, in N2 atmospherereaets with SiC leading to structure loosing which inereases oxidizing damage; Al(g), Al2O(g)and CO(g)firom refraetories containing Al, Si and C reaet with SiC to form β-SiC and Al2O3, which leads to damage.
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