𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Borate treatment of carbon fibers and carbon/carbon composites for improved oxidation resistance

✍ Scribed by D.W. McKee

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
476 KB
Volume
24
Category
Article
ISSN
0008-6223

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✦ Synopsis

Carbon fibers and carbon/carbon

composites have been treated with borate additives and then cured at 500-600Β°C

to produce a continuous film of boron oxide on all exposed surfaces.This treatment has been found to be highly effective in retarding oxidation of the carbonaceous substrate for extended periods in flowing air at temperatures up to 1000Β°C. At higher temperatures, and in the presence of water vapor, borate species were appreciably volatile and the oxidation protection provided by the coatings was less effective.

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