Formation of ZrO2-Al2O3 Coating Layers on SiC Fiber by Dip-Coating Process
The layers of ZrO2-Al2O3 were coated on the surface of SiC fibers (Tyranno SA fiber) by dip-coating process.The citric acid-ethylene glycol solution containing Al and Zr ions was polymerized at 150℃ to obtain a polymerized complex precursor.The 2D-woven SiC Tyranno SA fibers were dipped into this precursor few times.Heat treatment for coated fiber was conducted at 800-1200℃ for 1 h in air.Thin film of mixed zirconium/aluminum oxides on SiC fibers were successfully elaborated using the sol-gel process.The coated zirconium/aluminum oxides layer of SiC Tyranno SA fiber was about 200-1000 nm.The coated fibers were stable in an oxidizing environment even at high temperatures.
ZrO2-Al2O3 SiC fiber Dip-coating Microstructure Crystallization
Jae-Seol Lee Hyeon-Taek Son Toyohiko Yano
Korea Institute of Industrial Technology,Chumdan P.O.Box ＃1,Wolgye-dong,Gwangsan-gu,Gwangju,506-824, Research Laboratory for Nuclear Reactors,Tokyo Institute of Technology 2-12-1,O-okayama,Meguro-ku,To
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
1386-1388
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）