Liquid purification or separation – Filter – Material
Patent
1988-05-19
1989-06-13
Therkorn, Ernest G.
Liquid purification or separation
Filter
Material
B01D 3920
Patent
active
048390496
ABSTRACT:
An improved thermal shock resistant and generally thermal resistant ceramic composition is disclosed. The ceramic composition is compounded of aluminum oxide as a primary constituent with additives in a preferred form comprising zirconium oxide plus manganese oxide or titanium oxide, or both, interacted by exposure to high temperature. The additives increase the thermal shock resistance of the fired ceramic composition, with retention of elevated temperature strength properties. The ceramic compositions are prepared as high density solid shapes or as porous structures. The solid shapes formed into machine components show improved resistance to rapid thermal excursions, differential thermal gradients and elevated temperatures. Open cell ceramic foams of the ceramic composition are useful for hot filters, such as for filtering molten metal as well as in reaction supporting applications, where such ceramic foam structures are subject to rapid temperature and pressure transients.
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American Ceramic Society Bulletin, Mar. 1982, vol. 61, No. 3, pp. 339 and 440.
Graham John W.
Kinney, Jr. John W.
Astro Met Associates, Inc.
Therkorn Ernest G.
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