Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/41719

Title

Influence of plasma spray parameters on mechanical properties of yttria stabilized zirconia coatings I: four point bend test

Author(s)

Kucuk, Ahmet;  Berndt, Christopher C.;  Senturk, Ufuk;  Lima, Rogerio S.;  Lima, C. R. C.

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 μm), YSZ coating thickness (300–500 μm), 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. Coatings 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.

Publication type

Journal article

Source

Materials Science and Engineering A, Vol. 284, no. 1-2 (May 2000), pp. 29-40

Publication year

2000

Keyword(s)

Carbon steel;  Cold effects;  Four point bend test;  Inorganic coating;  Mechanical properties;  Metal testing;  Plasma spray parameters;  Plasma spraying;  Plasma treatment;  Sprayed coatings;  Stiffness;  Substrates;  Thermal barrier coatings;  Thermal effects;  Yield stress;  YSZ;  Yttria stabilized zirconia;  Zirconia;  Zirconium oxide

Publisher

Elsevier

ISSN

0921-5093

Publisher URL

http://dx.doi.org/10.1016/S0921-5093(00)00799-1

Peer reviewed