氧化锆热障涂层的组织和性能研究

通过研究发动机热端部件氧化锆热障涂层8YSZ （ZrO2＋8％Y2O3）的结合强度、隔热性能和抗热震性能,分析热障涂层性能和相应的失效机制,总结了传统热障涂层和纳米热障涂层之间性能的差异,研究结果表明：纳米热障涂层的力学性能、隔热能力和抗热震性能均明显优于传统热障涂层.

Study on structure and properties of zirconia thermal barrier coating

The failure mechanism of thermal barrier coatings was analyzed based on the research of adhesive strength, thermal insulation property and thermal shock resistance performance of zirconia thermal barrier coating （8YSZ, ZrO2＋8%Y2O3） on hot end parts of liquid engine. A conclusion that the mechanical property, thermal insulation capacity and thermal shock resistance performance of thermal barrier coatings prepared by nano powders are better than those of the traditional thermal barrier coat-ings prepared by micron powders is offered in this paper by analyzing the difference of the two kinds of coatings. The technology of thermal barrier coatings prepared by nano powders is important for the research of new thermal barrier coatings.