无机材料学报2011，Vol.26Issue(7)：701-706,6.DOI:10.3724/SP.J.1077.2011.00701
Ba0.25Sr0.75Al2Si2O8环境障碍涂层的制备与耐水腐蚀性能研究
Fabrication and Water-vapor Corrosion Resistance of Ba0.25Sr0.75Al2Si2O8 Environmental Barrier Coating
摘要
Abstract
Ba0.25Sr0.75Al2Si2O8 (BSAS) as environmental barrier coating (EBC) was coated on the 2D Cf/SiC substrate using slurry-brushing process. The water-vapor corrosion resistance of Cf/SiC and Cf/SiC-BSAS were studied in 50%H2O-50%O2 water vapor under atmospheric pressure and static atmosphere at 1250℃, respectively. The results show that the dense BSAS coating with free cracks can be prepared by slurry-brushing method followed by heat-treatment at 1350°C in high purity argon. The coating thickness approximate to 15um after pasted once, and can reach 50um after pasted for three times. The weight and flexural strength of Cf/SiC-SiC decreases greatly, while the weight of Cf/SiC-BSAS has no obvious change and the flexural strength retention is over 90% after corroded for 100 h.关键词
环境障碍涂层/浆料/BSAS/水腐蚀性能Key words
environmental barrier coating/ slurry/ BSAS/ water vapor corrosion分类
通用工业技术引用本文复制引用
鲁琳静,成来飞,洪智亮,王一光,张立同..Ba0.25Sr0.75Al2Si2O8环境障碍涂层的制备与耐水腐蚀性能研究[J].无机材料学报,2011,26(7):701-706,6.基金项目
国家自然科学基金(51032006,50820145202)National Natural Science Foundation of China(51032006,50820145202) （51032006,50820145202）
