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Oxidation of boron nitride in an arc heated jet.Two grades of hot pressed boron nitride and a boron nitride composite were subjected to oxidation tests in a 2.5 megawatt atmospheric arc jet. The results showed that fabrication and/or composition influenced thermal shock and oxidation resistance. Changes in surface structure and recession due to oxidation suggest correlation with specimen composition. The boron nitride composite reacted with the oxygen in the hot subsonic airstream to produce a glassy coating on the hot face surface.
Document ID
19720038713
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Buckley, J. D. (NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1971
Subject Category
Materials, Nonmetallic
Meeting Information
Meeting: Ceramics in severe environments; Sixth University Conference on Ceramic Science, North Carolina State University
Location: Raleigh, NC
Start Date: December 7, 1970
End Date: December 9, 1970
Accession Number
72A22379
Distribution Limits
Public
Copyright
Other

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