Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By mechanically introducing gas into material
Patent
1988-07-05
1990-01-02
Terapane, John F.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By mechanically introducing gas into material
264 82, 427299, 4273722, 501 95, B05D 300
Patent
active
H00007218
ABSTRACT:
Hollow ceramic fibers are made by intercalating carbon fibers with a metal chloride and then heating the intercalated fibers in air to oxidize or burn off the carbon, leaving metal oxide fibers having generally the size and structure of the carbon fiber precursors. The fibers are then soaked in boric acid solution, briefly dried and heated at a high temperature to make hollow alumina fibers. The temperatures at which the boric acid soaked fibers are heated can be varied to produce different tube morphologies.
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"Deintercalation Reactions to Form Ceramic Coatings on Graphite Fibers" by B. W. McQuillan and G. H. Reynolds, Abstract, Boston, Mass., Dec. 1986.
"Growth of Alumina Fibers from Intercalated Graphite Precursor Fibers" B. W. McQuillan and G. H. Reynolds, Abstract, San Diego, Calif., Jan. 1987.
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Covert John M.
Sinder Fredric L.
Singer Donald J.
Terapane John F.
The United States of America as represented by the Secretary of
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