Young's Modulus of Thermal Barrier Coating and Oxidation Resistant Coating Bonded to Stainless Substrate by Four-Point Bending

• WAKI Hiroyuki

  Department of Mechanical Engineering, Osaka Electro-Communication University

• FUJIOKA Hidenori

  Graduate School of Osaka Electro-Communication University

• HARADA Yoshio

  Thermal Spraying Technology R&D Laboratory, TOCALO Co., Ltd

• OKAZAKI Masakazu

  Department of Mechanical Engineering, Nagaoka University of Technology

• KAWASAKI Akira

  Department of Materials Processing, Tohoku University

Abstract

Young's modulus of thermal barrier coating (TBC) is one of the most essential mechanical properties on the designing of high performance TBC system. This paper describes one of the round-robin test results of New Energy and Industrial Technology Development Organization's (NEDO's) project titled “the survey-research of standardization on testing methods for thermo-mechanical performance of ceramic thermal barrier coatings”, for the fiscal years of 2006 and 2007. The bending method of the coating bonded to substrate is straightforward in preparing the specimen and loading to the specimen. Previous study has offered recommended testing methods and proper geometries of the specimens for the Young's modulus of thermal barrier coating and the bond coating. This paper confirmed that the recommended method and the geometry of the specimen provided the reasonable estimation as far as the other type of substrate material. It was also confirmed that the ratio of coating thickness to substrate thickness should be high and the threshold ratio was independent of the substrate material.

Journal

• Journal of Solid Mechanics and Materials Engineering

  Journal of Solid Mechanics and Materials Engineering 4 (2), 274-285, 2010

  The Japan Society of Mechanical Engineers

Keywords

• Thermal Barrier Coating
• Elastic Modulus
• Plasma Sprayed Coating
• Yttria-Stabilized Zirconia
• MCrAlY
• Bending Test
• Composite Beam

Details

• CRID: 1390282680241175168
• NII Article ID: 130000255502
• DOI: 10.1299/jmmp.4.274
• BIBCODE: 2010JSMME...4..274W
• ISSN: 18809871
• Web Site: http://www.jstage.jst.go.jp/article/jmmp/4/2/4_2_274/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed