中文摘要：

为提高荧光涂层在热障涂层中的适配性，本研究制备了Tm掺杂YSZ（Y2O3-ZrO2）粉末和涂层，探讨了等离子喷涂工艺参数对其发光性能的影响。结果表明：化学沉淀法制备粉末的过程中，静置陈化时间在15h以上、母液中的Zr4＋浓度为0．2mol／L时氧化钇可完全固溶到基体粉末中。Tm的掺杂浓度降低，粉末的发光强度增加显著。等离子喷涂距离和功率对涂层的发光性能有明显影响，在现有范围内，喷涂距离和功率越小，发光强度越高。

英文摘要：

Tm doped Y2O3-ZrO2 （YSZ） powders and coatings are prepared in order to enhance the adaptation of the coating to thermal barrier coatings. The powders were prepared by chemical process and the coatings were deposited by plasma spraying method. The effects of plasma spraying parameters on the luminescent intensity of YSZ：Tm coating were investigated. It is found that yttria solid solutes into the powder completely when the aging time is over 15 h and Zr4＋ concentration is 0.2 mol/L. The luminescent intensity of powder increases with the decrement of doped concentration of Tin. Plasma spraying distance and power have obvious influence on the luminescent intensity of YSZ：Tm coatings. The lower the spraying distance and power, the higher the luminescent intensity of coatings is in the present studying range.