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Composite Refractory Felt/Ceramic Material (1986)

Walker, C. L. ; Ercegovic, D. B. ; Norgren, C. T.

In: Other Sources

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Publication Date: 2019-07-12

Description: Ceramic protective coatings on combustor liners adhere better. Report discloses results of recent combustor-liner research where thick yttria stabilized zirconia ceramic was plasma-sprayed on BRUNSBOND substrates and exposed to nearly stoichiometric combustion. Combustor screening tests exposed 30 test specimens to nearly-stoichiometric flame temperatures of 3,450 degrees F (2,170 K) for 4 cycles. After completion of screening tests, all 30 specimens showed no visible evidence of discoloration or failure. There were no mudflat cracks, felt/ceramic, or backing/felt separations on any panels.

Keywords: MATERIALS

Type: LEW-14238 , NASA Tech Briefs (ISSN 0145-319X); 10; 2; P. 93

Format: text

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