Influence of plasma spray parameters on mechanical properties of yttria stabilized zirconia coatings. I: Four point bend test
A. Kucuk, C.C. Berndt, U. Senturk, R.S. Lima, C.R.C. Lima
Materials Science
Abstract
Yttria (8 wt.%) stabilized zirconia (YSZ) with a NiCrAlY bond coat was atmosphere plasma sprayed on mild steel substrates.The bond coat thickness (100–250 mm), YSZ coating thickness (300–500 mm), stand off distance (80–100 mm), and substrate temperature (273–393 K) were changed in a four by 17 experimental design matrix to investigate the influence of each spray parameter on the mechanical properties of coatings. Coatings were tested using a four point bend test arrangement. Coat...Moreings
sprayed with thinner bond coat on a cold substrate exhibited higher yield strength and stiffness under bending. Change in the stand off distance and the top coat thickness did not statistically influence either yield strength or stiffness of the coatings.
keywords:Thermal barrier coatings; Mechanical properties; Plasma spray parameters
本站文章未经允许不得转载；如欲转载请注明出处，北京桑尧科技开发有限公司网址：http://www.sunspraying.com/
|
