Bond strength and stress measurements in thermal barrier coatings

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Thermal barrier coatings have been used extensively in aircraft gas turbines for more than 15 years to insulate combustors and turbine vanes from the hot gas stream. Plasma sprayed thermal barrier coatings (TBCs) provide metal temperature reductions as much as 300{degrees}F, with improvements in durability of two times or more being achieved. The introduction of TBCs deposited by electron beam physical vapor deposition (EB-PVD) processes in the last five years has provided a major improvement in durability and also enabled TBCs to be applied to turbine blades for improved engine performance. This program evaluates the bond strength of yttria stabilized ... continued below

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13 p.

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Gell, M. & Jordan, E. December 31, 1995.

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Description

Thermal barrier coatings have been used extensively in aircraft gas turbines for more than 15 years to insulate combustors and turbine vanes from the hot gas stream. Plasma sprayed thermal barrier coatings (TBCs) provide metal temperature reductions as much as 300{degrees}F, with improvements in durability of two times or more being achieved. The introduction of TBCs deposited by electron beam physical vapor deposition (EB-PVD) processes in the last five years has provided a major improvement in durability and also enabled TBCs to be applied to turbine blades for improved engine performance. This program evaluates the bond strength of yttria stabilized zirconia coatings with MCrAlY and Pt-Al bond coats utilizing diffraction and fluorescence methods.

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13 p.

Notes

OSTI as DE96008950

Source

  • Advanced turbine systems (ATS) annual review, Morgantown, WV (United States), 17-18 Oct 1995

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  • Other: DE96008950
  • Report No.: DOE/MC/29061--96/C0676
  • Report No.: CONF-9510109--40
  • Grant Number: FC21-92MC29061
  • Office of Scientific & Technical Information Report Number: 220443
  • Archival Resource Key: ark:/67531/metadc664256

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  • December 31, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Nov. 30, 2015, 4 p.m.

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Gell, M. & Jordan, E. Bond strength and stress measurements in thermal barrier coatings, article, December 31, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc664256/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.