| 等离子喷涂铈酸镧热障涂层性能研究 |
| |
| 引用本文： | 王世兴,汪瑞军,何箐,屈轶,王伟平.等离子喷涂铈酸镧热障涂层性能研究[J].表面技术,2011,40(6):23-25,81. |
| |
| 作者姓名： | 王世兴 汪瑞军 何箐 屈轶 王伟平 |
| |
| 作者单位： | 北京金轮坤天特种机械有限公司,北京,100083 |
| |
| 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。
|
| 关 键 词： | 热障涂层 铈酸镧 等离子喷涂 隔热性能 |
Research on Property of Lanthanum Cerium Oxide Thermal Barrier Coatings Prepared by Plasma Spray |
| |
| WANG Shi-xing,WANG Rui-jun,HE Qing,QU Yi,WANG Wei-ping.Research on Property of Lanthanum Cerium Oxide Thermal Barrier Coatings Prepared by Plasma Spray[J].Surface Technology,2011,40(6):23-25,81. |
| |
| Authors: | WANG Shi-xing WANG Rui-jun HE Qing QU Yi WANG Wei-ping |
| |
| Affiliation: | WANG Shi-xing,WANG Rui-jun,HE Qing,QU Yi,WANG Wei-ping(Beijing Golden Wheel Special Machine Co.Ltd,Beijing 100083,China) |
| |
| Abstract: | 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 La2O3,plasma sprayed La2Ce2O7 coating meted stoichiometric 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 ℃. |
| |
| Keywords: | thermal barrier coating lanthanum cerium oxide plasma spray heat insulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
