[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):24-29.[doi:10.3969/j.issn.1671-6833.2014.03.005]
　LIU 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):24-29.[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卷
期数:
2014年03期
页码:
24-29
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):
LIU Xinhong;NIU Zhiwang; ZHOU Chaojie ; WANG Dajun.FANG Yanzhen;LIU Kai
1. High Tempemature Ceramics lnstitute, 2hengzhou University, 2hengzhou 450052, China; 2. Boma Refractories Group, Xinxiang 453002，China
Keywords:
SiC heating elements;  N;  atmosphere ;  damnifieation mechanism
分类号:
TQ175.1
DOI:
10.3969/j.issn.1671-6833.2014.03.005
文献标志码:
A
Abstract:
Phase eomposition and mierostruelure of SiC heating elements used in N, almosphere have been an-alyzed by XRD and SEM, and the damnifieation mechanism of Sic heating elements is diseussed. The resultsshow ; there are many pores in unchanged part which provide channels for the corrosive gas leading to damnif.eation , and the impurities Si, K,0 and FeSi would aeeelerate damnifieation during use ; a protective film inthe surfaee of SiC cannot form in N, almosphere due to low pressure of 0,,and the trace 0, in N, atmospherereacts with SiC leading to structure loosing which inereases oxidizing damage; Al(g), Al,0(g) and CO(g)from refraetories eontaining Al, Si and C reaet with SiC to form B-SiC and Al,0,, which leads to damage.
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