Optimizing adhesion strength of Environment Barrier coatingusing Slurry spray technique
Keywords:
Environment barrier coatings, Slurry Spray Technique, MulliteAbstract
Environment barrier coatings (EBCs) have been widely developed to protect metallic and Si-based ceramic
components from high temperature environmental attack and thermal stresses in structures and machine components
across a wide range of industries and applications.Zirconia-yttria based oxides and (Ba,Sr)Al2Si2O8 (BSAS)/mullite
basedsilicates have been used as the coating materials. The objective of this paper is to optimize adhesion strength of
Mullite based Ceramics – metal environment barrier slurry sprayed coating on mild steel while using a new, low cost
and effective technique; Slurry Spray Technique(SST). The L9 Taguchi method has been used to develop the empirical
models for response characteristics i.e Adhesion strength against three significance parameters sintering temperature,
sintering time and Percentage additives with three levels have been employed.