Composite shaped articles comprising reinforced vitreous matrices
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United States of America Patent
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Jun 22, 1993
Grant Date -
N/A
app pub date -
Jun 19, 1990
filing date -
Jun 21, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Composite shaped articles, well adapted for aerospace applications, include a vitreous matrix and an effective amount of a reinforcing agent therefor, preferably a fibrous and ceramic reinforcing agent, such vitreous matrix being based on silica, alumina, zirconia, an alkali metal oxide and an alkaline earth metal oxide, in the following proportions by weight relative to the total weight of the matrix:
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