Paper Title:
Microstructural Evolution of Thermal Barrier Coatings during Isothermal Oxidation
  Abstract

This paper analyses the degradation of a ceramic top coating 70%ZrO2 – 30%CaO deposited onto a stainless steel AISI 304 by thermal spray, using Ni-6%Al-5%Mo as overlay coating. These thermal barrier coatings were heat treated for 48, 120 and 288 h at 800 °C to evaluate the degradation of these materials by isothermal oxidation. The microstructure evolution during oxidation was analysed by environmental scanning electron microscopy, transmission electron microscopy and X ray microanalysis. A thermally grown oxide layer was observed between the overlay coating and the ceramic top coating after oxidation. This layer was formed by a mixed Al, Ni and Mo oxides.

  Info
Periodical
Edited by
Marc Anglada et al.
Pages
269-272
DOI
10.4028/www.scientific.net/KEM.333.269
Citation
A. Salazar, J. Gómez-García, P. Poza, V. Utrilla, "Microstructural Evolution of Thermal Barrier Coatings during Isothermal Oxidation", Key Engineering Materials, Vol. 333, pp. 269-272, 2007
Online since
March 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hui Mei, Lai Fei Cheng, Ya Nan Liu, Li Tong Zhang
Abstract:Thermal barrier coatings (TBCs) were deposited by an Air Plasma Spraying (APS) technique. The TBC coating comprised of 92 wt.% ZrO2 and 8...
1924
Authors: M.B. Bhatty, Fazal Ahmad Khalid, Aamer Nusair Khan
Abstract:Thermal barrier coatings (TBCs) are multilayered coatings having the complex structure. In thermal spray coatings characteristic features of...
364
Authors: Grzegorz Moskal, Dawid Niemiec
Chapter 6: High-Temperature Corrosion and Surface Strength, Thermal Coating
Abstract:Characterization of top-surface of NiCrAlY coating deposited by plasma spraying process on Inconel 625 Ni based superalloys was analyzed in...
385
Authors: Widyastuti, Kusriantoko Parindra, Lilis Mariani, Hosta Ardhyananta, Sulistijono
Chapter 5: Surfaces, Coatings and Hardening of Materials for Industrial Application
Abstract:TBC (Thermal Barrier Coating) with YSZ-Al2O3/YSZ as top coat (TC) and MCrAlY alloy as bond coat (BC) marked as...
338