电沉积ZrO_2-Ni功能梯度材料的组织结构分析

An Analysis on the Microstructure of Electrodeposited ZrO 2 Ni Functionally Graded Materials

电沉积ＺｒＯ２┐Ｎｉ功能梯度材料的组织结构分析①全成军＊向兴华朱景川尹钟大（哈尔滨工业大学材料科学与工程学院哈尔滨１５０００１）航空航天技术的高速发展对材料的耐热性能提出了更苛刻的要求，传统的单一材料（如陶瓷、金属）和金属陶瓷复合材料已难以在超高温和...

The electrodeposited ZrO 2 Ni functionally graded coating was fabricated by controlling the ZrO 2 concentration in the bath, and the microstructure was analyzed by X Ray Diffraction (XRD) and Electron Probe Microanalysis (EPMA). The results show that the functionally graded coating has excellent compositional gradient distribution from the substrate to the surface. The content of ZrO 2 is up to 14.4 vol% in the surface layer and the coating consists of the t ZrO 2, m ZrO 2 and Ni phases. Owing to the ZrO 2 particles pressed by Ni atoms during electrodepositing, t→m transformation has occurred.