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Method for preparing LaSNYSZ composite ceramic by doping multi-element rare earth
The invention discloses a method for preparing LaSNYSZ composite ceramic by doping multi-element rare earth. The ZrO2, La2O3, Sm2O3 and Nb2O5 are placed in an organic monomer solution, a green body isobtained through heating and drying, and calcined, a precursor of ceramic powder is obtained, polyethylene glycol is added into the precursor, the mixture is ground, mixed to be uniform and sintered,and the LaSNYSZ composite ceramic is obtained. The thermal conductivity of the thermal barrier coating prepared by the method can be greatly reduced, and the high-temperature phase stability and thethermal insulation performance of the coating can be improved.
本发明公开了一种多元稀土掺杂制备LaSNYSZ复合陶瓷的方法，通过将ZrO、LaO、SmO和NbO置于有机单体溶液中，加热干燥得到坯体进行煅烧得到陶瓷粉末的前驱体，在前驱体中加入聚乙二醇研磨混匀后烧结即得LaSNYSZ复合陶瓷。本发明制备得到的热障涂层的热传导率会大大降低，涂层的高温相稳定性和隔热性能会得到提高。
Method for preparing LaSNYSZ composite ceramic by doping multi-element rare earth
The invention discloses a method for preparing LaSNYSZ composite ceramic by doping multi-element rare earth. The ZrO2, La2O3, Sm2O3 and Nb2O5 are placed in an organic monomer solution, a green body isobtained through heating and drying, and calcined, a precursor of ceramic powder is obtained, polyethylene glycol is added into the precursor, the mixture is ground, mixed to be uniform and sintered,and the LaSNYSZ composite ceramic is obtained. The thermal conductivity of the thermal barrier coating prepared by the method can be greatly reduced, and the high-temperature phase stability and thethermal insulation performance of the coating can be improved.
本发明公开了一种多元稀土掺杂制备LaSNYSZ复合陶瓷的方法，通过将ZrO、LaO、SmO和NbO置于有机单体溶液中，加热干燥得到坯体进行煅烧得到陶瓷粉末的前驱体，在前驱体中加入聚乙二醇研磨混匀后烧结即得LaSNYSZ复合陶瓷。本发明制备得到的热障涂层的热传导率会大大降低，涂层的高温相稳定性和隔热性能会得到提高。
Method for preparing LaSNYSZ composite ceramic by doping multi-element rare earth
一种多元稀土掺杂制备LaSNYSZ复合陶瓷的方法
YI ZHONGZHOU (author) / ZHAI FENGRUI (author) / SHAN KE (author) / LI NAN (author)
2020-09-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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