纳米Y-PSZ基材料高温封严涂层的研制  

Study of Abradable Seal Coating with Nanostructure Y-PSZ Reference-Phase Used in High Temperature

作　　者：高忠宝[1] 程旭东[1] 王鸣[2] 张子军[1] 邓飞飞[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,武汉430070 [2]沈阳航空发动机设计研究所,沈阳110015

出　　处：《航空材料学报》2008年第4期56-59,共4页Journal of Aeronautical Materials

摘　　要：前期探讨高温环境使用的封严涂层。研制出可磨耗封严涂层材料，以纳米Y—PSZ为基相材料，添加定量的高温软相和造孔组分，获得一种添加相分布均匀，组织细小松软的团聚型封严涂层材料粉末。并成功采用APS在试验基体上制备出≥1．0mm厚的涂层。对涂层组织、表面洛氏硬度、附着强度进行检测，并初步讨论相关性能。结果表明，研制的涂层硬度保持在HR45Y30～55，并且孔隙率控制在30％的涂层具有适宜的结合强度和硬度，能够满足使用时的硬度和结合强度要求。The preliminary performance of the abradable seal coating used in high temperature was researched. The tiny, soft and aggregated material powder compounded by Y-PSZ matrix,tender material and pore-forming component was prepared for the abradable seal coating. Then the coating was deposited triumphantly on the 1Cr18Ni9Ti alloy by means of APS, the thickness was more than 1.0mm. Microstructure,superficial Rockwell hardness and adhesive strength were analyzed and discussed. It was found that the superficial Rockwell hardness of the coating was in the distribution of HR45Y 30 -55 ,the coating which was provided with 30% porosity had condign adhesive strength and hardness to satisfy the requirement.

关 键 词：可磨耗封严涂层 等离子喷涂 高温 

分 类 号：TB332[一般工业技术—材料科学与工程]