Development of sol-gel derived coating for NICALON{sup TM}/SiC composites

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Mullite and aluminum titanate precursor polymeric sols were developed for applying as coatings on Nicalon{trademark} fabrics and tows. A Nicalon{trademark}/SiC composite with a mullite interface was fabricated. The mullite precursor interface coatings were applied by a vacuum infiltration method and the SiC matrix was deposited by a forced flow chemical vapor infiltration process. Thin, uniform mullite interface coatings were obtained. However, the Nicalon{trademark}/SiC composite exhibited brittle fracture. Mullite and alumina-titania coatings were applied on Nicalon{trademark} tows and the effect of heat treatment at 1000{degrees}C in air is discussed.

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8 p.

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Shanmugham, S.; Liaw, P.K.; Stinton, D.P.; Besmann, T.M.; More, K.L.; Bleier, A. et al. May 1, 1996.

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Description

Mullite and aluminum titanate precursor polymeric sols were developed for applying as coatings on Nicalon{trademark} fabrics and tows. A Nicalon{trademark}/SiC composite with a mullite interface was fabricated. The mullite precursor interface coatings were applied by a vacuum infiltration method and the SiC matrix was deposited by a forced flow chemical vapor infiltration process. Thin, uniform mullite interface coatings were obtained. However, the Nicalon{trademark}/SiC composite exhibited brittle fracture. Mullite and alumina-titania coatings were applied on Nicalon{trademark} tows and the effect of heat treatment at 1000{degrees}C in air is discussed.

Physical Description

8 p.

Notes

OSTI as DE96009873

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  • 20. annual conference on composites, advanced ceramics, materials and structures-B, Cocoa Beach, FL (United States), 7-11 Jan 1996

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  • Other: DE96009873
  • Report No.: CONF-960106--10
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 233312
  • Archival Resource Key: ark:/67531/metadc668608

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  • May 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Jan. 21, 2016, 7:52 p.m.

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Shanmugham, S.; Liaw, P.K.; Stinton, D.P.; Besmann, T.M.; More, K.L.; Bleier, A. et al. Development of sol-gel derived coating for NICALON{sup TM}/SiC composites, article, May 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc668608/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.