Stock material or miscellaneous articles – Hollow or container type article
Patent
1990-01-23
1991-12-10
Derrington, James
Stock material or miscellaneous articles
Hollow or container type article
428 344, 428 345, B32B 108
Patent
active
050716859
ABSTRACT:
The present invention relates to composite articles of manufacture comprised of a continuous phase of silicon containing a discontinuous matrix of particulate material selected from silicon carbide, carbon, or mixtures thereof. The particulate materials have a minimum size of about fifty microns, and more preferably for enhanced performance, a minimum size of 100 microns. The present articles contain from about thirty to about seventy, and more preferably from about 35 to about 65 percent by volume of silicon. The present composites have strains to failure at high temperatures substantially higher than the reaction bonded silicon carbide composites of the prior art. The present composites also have a resistance to thermal stress at elevated temperatures superior to the prior art composites. In such respects, the present composite materials have characteristics more resembling a metal than a ceramic. The present composites are especially useful in the fabrication of shaped articles, for example, tubular articles.
REFERENCES:
patent: 801296 (1905-03-01), Bolling
patent: 1266478 (1917-03-01), Hutchins
patent: 1756457 (1930-04-01), Fourment
patent: 3495939 (1970-02-01), Forrest
patent: 3882210 (1975-05-01), Crossley
patent: 3951587 (1976-04-01), Alliegro
patent: 4154787 (1979-05-01), Brown
patent: 4265843 (1981-05-01), Dias et al.
Derrington James
Studley Donald C.
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