Formation of alumina impregnated carbon fiber mats
First Claim
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1. A process for the formation of an alumina containing carbon fiber mat comprising:
- a. dispersing an alumina precursor solution in said mat;
b. converting said dispersed alumina precursor to an insoluble hydroxide precipitate; and
c. pyrolizing said aluminum hydroxide precipitate to form alumina nodules dispersed throughout said mat.
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Abstract
A process for the formation of alumina containing carbon fiber mats is provided. The process comprises dispersing an alumina precursor solution in the mat, converting the precursor to an insoluble hydroxide precipitate and hydrolizing the precipitate to form alumina nodules dispersed throughout the mat. Also provided is an alumina containing carbon fiber mat comprising carbon fibers and nodules of alumina, which are substantially uniformly dispersed throughout the mat, and a sodium sulfur cell having a sulfur compartment containing such a mat.
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25 Claims
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1. A process for the formation of an alumina containing carbon fiber mat comprising:
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a. dispersing an alumina precursor solution in said mat; b. converting said dispersed alumina precursor to an insoluble hydroxide precipitate; and c. pyrolizing said aluminum hydroxide precipitate to form alumina nodules dispersed throughout said mat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An alumina containing carbon fiber mat comprising carbon fibers and nodules of alumina, said nodules being formed by dispersing an aluminum hydroxide throughout said mat, precipitating said aluminum hydroxide and pyrolizing said aluminum hydroxide to form alumina nodules within said mat.
- 19. A carbon mat comprising carbon fibers and nodules of alumina, said nodules being substantially uniformly dispersed throughout said mat.
- 22. A sodium sulfur cell having a sulfur compartment containing a mat, said mat comprising carbon fibers and nodules of alumina dispersed substantially uniformly among said fibers.
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