Optimal Parameter Design for Al/SiC Composites using Design of Experiments

Abstract

Abstract：In this work, the parameter optimization for thermal-sprayed Al/SiC composites have been designed by L9(3 4 ) orthogonal array and analysis of variance(ANOVA). Al/SiC composites were fabricated by flame spray process on steel substrate. The hardness of composites were measured using micro-vickers hardness tester, and these results were analyzed by ANOVA. The ANOVA results showed that the oxygen gas flow, powder feed rate and spray distance affect on the hardness of the Al/SiC composites. From the ANOVA results, the optimal combination of the flame spray parameters could be extracted. It was considered that experimental design using orthogonal array and ANOVA was efficient to determine optimal parametet of thermal-sprayed Al/SiC composites. 김영식(교신저자) : 부경대학교 기계자동차공학과