刘玲,王富耻,马壮,孙英超.等离子喷涂(La0.4Sm0.5Yb0.1)2Zr2O7涂层的热性能研究[J].稀有金属材料与工程,2017,46(10):2785~2789.[Ling Liu,Fuchi Wang,Zhuang Ma,Yingchao Sun.Study on Thermal Properties of Plasma-Sprayed (La0.4Sm0.5Yb0.1)2Zr2O7 Coatings[J].Rare Metal Materials and Engineering,2017,46(10):2785~2789.]
等离子喷涂(La0.4Sm0.5Yb0.1)2Zr2O7涂层的热性能研究
投稿时间:2015-09-29  修订日期:2016-01-04
中文关键词:  稀土锆酸盐  热性能  热障涂层
基金项目:
中文摘要:
      本文采用大气等离子喷涂制备了(La0.4Sm0.5Yb0.1)2Zr2O7涂层,并在相同的条件下制备了Sm2Zr2O7涂层作为对比。分别用扫描电子显微镜和X射线衍射仪分析 LSYZO涂层的微观形貌和相结构,并对两种涂层的热导率进行测定。结果表明,等离子喷涂后LSYZO涂层的相结构未发生变化。LSYZO涂层的结合强度为22 MPa,与SZO涂层相当。LSYZO涂层热震40次后发生失效,其热导率明显低于SZO涂层,这主要与LSYZO陶瓷自身的复杂结构有关。
Study on Thermal Properties of Plasma-Sprayed (La0.4Sm0.5Yb0.1)2Zr2O7 Coatings
英文关键词:rare-earth zirconates  thermal properties  thermal barrier coatings
英文摘要:
      (La0.4Sm0.5Yb0.1)2Zr2O7 (LSYZO) coating was prepared by atmospheric plasma spray. Sm2Zr2O7 (SZO) coating was also prepared in the same conditions as a contrast. Microstructures and phases of LSYZO coatings were investigated by scanning electrical microscopy and X-ray diffraction, respectively. The thermal conductivities of the two coatings were measured. The results show that the phase composition of LSYZO coating has no change after plasma spraying. The adhesion strength of LSYZO coating is 22 MPa, which is comparable with that of SZO coating. And LSYZO coating has lifetime of about 40 cycles. The thermal conductivity of LSYZO coating is lower than that of SZO coating, which mainly depends on the complex structure of LSYZO ceramic.
作者单位E-mail
刘玲 北京理工大学材料学院 richard@bit.edu.cn 
王富耻 北京理工大学材料学院  
马壮 北京理工大学材料学院  
孙英超 北京理工大学材料学院  
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