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等离子喷涂铈酸镧热障涂层性能研究 被引量：3

Research on Property of Lanthanum Cerium Oxide Thermal Barrier Coatings Prepared by Plasma Spray
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摘要 采用固相反应在1 400℃合成了具有萤石结构的铈酸镧(LCO)粉末。考虑到等离子喷涂过程中CeO2挥发高于La2O3,通过对合成粉末原始配比进行调整,制备出的等离子喷涂LCO涂层符合La2Ce2O7化学计量比。LCO涂层在1 400℃下,热处理110h后未发生分解现象。隔热性能测试结果表明,相同厚度的双层结构LCO/YSZ涂层,在1 250℃下隔热性能约为YSZ涂层的2倍。 Lanthanum cerium oxide （LCO） with fluorite structure was synthesized by solid reaction process at 1 400℃. In view of the amount of CeO2 volatilization is higher than La2 03, plasma sprayed La2 Ce2 O7 coating meted stoi- chiometric proportion was deposited by adjusting the mixture ration of raw materials. No obvious decomposition of LCO coating was observed during heat treatment at 1 400℃ for 110 h. Heat insulation results reveal that the double-layer LCO/YSZ coating is twice times of YSZ coating with the same thickness at 1 250℃.
作者 王世兴 汪瑞军 何箐 屈轶 王伟平
机构地区 北京金轮坤天特种机械有限公司
出处 《表面技术》 EI CAS CSCD 北大核心 2011年第6期23-25,81,共4页 Surface Technology
关键词 热障涂层 铈酸镧 等离子喷涂 隔热性能 thermal barrier coating lanthanum cerium oxide plasma spray heat insulation
分类号 TG174.442 [金属学及工艺—金属表面处理]
  • 相关文献

参考文献12

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共引文献10

同被引文献35

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引证文献3

二级引证文献19

表面技术
2011年 第6期

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