Abstract
Present investigation deals with the effect of varying process parameters on the characterization of plasma sprayed fly ash - Al2O3 composite coatings using Taguchi’s experimental design method to conduct experiments and optimization of process parameters. Parameters such as standoff distance, powder feed rate and current density were considered for the optimization of bond strength, porosity and hardness. The significance of the parameters and their optimum level is determined by using ANOVA. Experiments were carried out to validate the effect of optimum process parameters on response characteristics and found that selected optimal combination of process parameters is able to achieve the best results.
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