Paper Title:
Hertzian and Nanoindentations on EBPVD-Coated Gadolinium Zirconate Thermal Barrier Materials
  Abstract

New gadolinium-yttrium zirconate thermal barrier coating(TBC) material is deposited by electron beam PVD method, as an alternative to YSZ TBC layer for gas turbine blade applications. XRD analysis reveals that the new TBC material consists of thermally stable pyrochlore structure. Hertzian and nanoindentation evaluations reveal that gadolinium zirconate materials show superior properties as a TBC candidate material with high mechanical properties. The Y2O3 doping improved hardness and elastic modulus of TBC layers. The indentation stress-strain curves by Hertzian indentation and the load-penetration depth curves by nanoindentation indicate that the new TBC layer has higher damage resistance combined with superior thermal insulation properties rather than commercial YSZ coatings.

  Info
Periodical
Solid State Phenomena (Volumes 124-126)
Edited by
Byung Tae Ahn, Hyeongtag Jeon, Bo Young Hur, Kibae Kim and Jong Wan Park
Pages
1349-1353
DOI
10.4028/www.scientific.net/SSP.124-126.1349
Citation
K. I. Jung, S. H. Park, J. H. Kim, D. K. Kim, U. Y. Paik, K. S. Lee, "Hertzian and Nanoindentations on EBPVD-Coated Gadolinium Zirconate Thermal Barrier Materials", Solid State Phenomena, Vols. 124-126, pp. 1349-1353, 2007
Online since
June 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: Tae Ho Shin, Ji Heang Yu, Shi Woo Lee, In Sub Han, Doo Won Seo, Ki Seok Hong, Sang Kuk Woo, Sang Hoon Hyun
1114
Authors: Z.Y. Al-Taha, M.S.J. Hashmi, Bekir Sami Yilbas
Abstract:HVOF coating finds application in industry to protect the surface from the harsh environments such as high temperature, corrosion, and...
1972
Authors: Zong Yin Duan, Dong Sheng Wang
Chapter 12: Laser Processing Technology
Abstract:This paper deals with the microstructure and thermal shock behavior of laser remelting of yttria-stabilized zirconia (YSZ) thermal barrier...
2502
Authors: San Ming Du, Yong Ping Niu, Yong Zhen Zhang
Chapter 5: Coatings and Surface Engineering
Abstract:In the present study, 20 Wt. % ZrO2-Al2O3-17 wt.% TiO2 powders were sprayed using a plasma-spray...
420
Authors: Nurot Panich, Surasak Surinphong, D.A. Karpov, Yong Kwang Tan, Chin Foo Goh, Jan Ma
Abstract:The aim of this work is to fabricate and develop the innovative ceramic coatings for protection applications with both high hardness and...
81