Nanoporous ultrafine α-alumina powders and sol-gel...

Details Nanoporous ultrafine α-alumina powders and sol-gel... Nanoporous ultrafine α-alumina powders and sol-gel...

2008-08-13

2009-12-29

Vanoy, Timothy C (Department: 1793)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

C423S625000, C423S630000, C423S631000, C977S773000, C977S777000, C977S811000, C051S309000, C216S089000, C438S692000, C438S693000

Reexamination Certificate

active

07638105

ABSTRACT:
The present invention provides α-alumina powders comprising α-alumina particles of which at least 80% of the α-alumina particles have a particle size of less than 100 nm. The invention also provides slurries, particularly aqueous slurries, which comprise α-alumina powders of the invention. The invention further provides methods of manufacturing α-alumina powders and α-alumina slurries of the invention and methods of polishing using same.

REFERENCES:
patent: 4579728 (1986-04-01), Schoenthal et al.
patent: 4615875 (1986-10-01), Gonczy et al.
patent: 4623364 (1986-11-01), Cottringer et al.
patent: 4915710 (1990-04-01), Miyazaki et al.
patent: 6083622 (2000-07-01), Garg et al.
patent: 6258137 (2001-07-01), Garg et al.
patent: 6752692 (2004-06-01), Wada et al.
patent: 7115243 (2006-10-01), Hong et al.
patent: 7422730 (2008-09-01), Wang
patent: 7547431 (2009-06-01), Yadav et al.
patent: WO 00/69790 (2000-11-01), None
patent: WO 01/25366 (2001-04-01), None
“Synthesis and Processing of Nano-alpha-AI2O3 Powders” by Hongwei Ma et al.; Key Engineering Materials; Aedermannsdorf, CH., vol. 206-213, (Sep. 9, 2001), 4 pages.
“Production of ultrafine alpha alumina powders and fabrication of fine grained strong ceramics” by S. Rajendran; Journal of Materials Science, vol. 29 (1994), pp. 5664-5672.

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