Fabrication and Optical Properties of Sm2Zr2O7-NiCr2O4

摘要：

　　Sm2Zr2O7 is one of the promising candidate materials for the next generation thermal barrier coatings because of its excellent thermal properties.But at high temperature the thermal conductivity of rare-earth zirconate increases because of radiation conduction.NiCr2O4,which can absorb the infrared photons intensely,was introduced to reduce the radiation conduction of rare-earth zirconate.NiCr2O4 powder was prepared by coprecipitation.The bulks of Sm2Zr2O7-NiCr2O4 with different content of NiCr2O4 were prepared by using non-pressure sintering.The phase and microstructure of the samples were characterized by XRD and SEM.The optical absorption was also investigated.The absorptivity of the composite,which was generally higher than that of pure Sm2Zr2O7 prepared by coprecipitation and non-pressure sintering,was enhanced with the content of NiCr2O4 increasing.The enhancement of absorptivity will reduce the radiation conduction of rare-earth zirconate potentially.

关键词： Sm2Zr2O7-NiCr2O4 Thermal barrier coatings Optical properties

作者: T.Li L.Liu Q.Xu S.Z.Zhu

作者单位: School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,P.R.China National Key Laboratory of Science and Technology on Materials under Shock and Impact,Beijing,100081

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 459-462

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）