SUN Guoliang, WANG Gang, ZHANG Wenjie

(Jingdezhen Ceramic Institute, Jingdezhen Jiangxi 333001)

Abstract: 310S stainless steel suffers a heavy loss when oxidized at 900° C. Even if the Cr content reaches 26%, a layer of protection still cannot form on its surface. In order to raise its application temperature, coatings must be used to protect it. In this paper, a ceramic coating is prepared by combining the techniques of high -temperature stainless steel oxidation and coating-substrate binding, using frits, feldspar, chromium oxide, clay and nickel oxide as raw materials. After sinter at 1000-1050℃ and heat soaked for 15 min, the coating applied evenly on the pre-oxidized stainless steel substrate has good thermal shock resistance.

Key words:  ceramic coating; stainless steel; oxidation resistance; thermal shock resistance