Effect of Heat Treatment Temperature on Properties of SiO2-2rO2-A12O3-Cr203 Coatings on Stainless Steel Substrate
The SiO2-2rO2-Al2O3-Cr2O3 film is coated on the surface of stainless steel using analytical reagent TEOS,ZrOC12 8H2O2. Al(NO3)39H2O and Cr (N03)3 9H2O as precursor and basing on mole ratio to calculate through Sol-gel method. The phase transformation behavior,erosion resistance. thermal shock resistance and abrasion resistance of ceramic coating by different heat treatment are studied. The results show that: l) The SiO2-2rO2-Al2O3-Cr2O3 gel coatings has non-crystalline structure after the treatment at 700℃ and 800 ℃. New substance is not created below 700℃. 2) The stainless steel substrate with ceramic coating has a higher erosion resistance at high temperature (700℃ and 800℃)than that without coating.3) Thermal shock resistance of the samples treated in 700℃ is the best which has reached within 17-2lcycles (900℃,air cooling). 4) The stainless steel substrate with ceramic coating has a higher abrasion resistance than that without coating. The samples treated at 700℃ and 800℃ have the best abrasion resistance.
Heat treatment temperature Stainless steeI SiO2-ZrO2Al2O3-Cr2O3 film Properties
Liu Shuxian Wang Qianping Nie Yimiao
College of Resources and Environment,Hebei Polytechnic University,Tangshan 063009,China
国际会议
Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)
南昌
英文
321-324
2010-04-28（万方平台首次上网日期，不代表论文的发表时间）