減圧ブラズマ溶射法による大型傾斜機能材料の形成技術の開発

抄録

This study was aimed at developing fabrication process of a larage-sized Functionally Gradient Mateials (FGM) by using Low Pressure Plasma Spraying (LPPS). The problem for the enlargment is the thermal distortion of substrates which occur during pre-heating and spraying. In order to solve this problem, it is neccesary to make clear the effect of substrate temperature on the distortion. This study showed that under the optimum condition, such as maximum temperature less than 600°C and temperature distribution less than 80°C of substrate during pre-heating, its distortion was successivily minimized.