Aluminum-and magnesium-based molten ceramic grains

Details Aluminum-and magnesium-based molten ceramic grains Aluminum-and magnesium-based molten ceramic grains

2004-04-15

2009-08-18

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Refractory

C501S108000, C501S118000, C501S120000, C501S121000, C501S153000, C051S307000, C051S309000

Reexamination Certificate

active

07576022

ABSTRACT:
Molten ceramic grains are intended, for example, for applications involving abrading tools, having the following average chemical weight composition, expressed in weight percent based on oxide content: Al2O3: 93% to 97.5%; MgO: 2.2 to 6.5%; SiO2: <0.1%; other impurities: <0.4%.

REFERENCES:
patent: 2019208 (1935-10-01), Baumann et al.
patent: 3993119 (1976-11-01), Scott
patent: 4157898 (1979-06-01), Walker et al.
patent: 4906255 (1990-03-01), Nikitina et al.
patent: 6287353 (2001-09-01), Celikkaya
patent: 2 642 694 (1990-08-01), None
FEPA-standard 43-1:2006: Grains of fused aluminum oxide, silicon carbide and other abrasive materials for coated abrasives Macrogrits P 12 to P 220—http://www.fepa-abrasives.org/DesktopDefault.aspx?portalname=www.fepa-abrasives.org&language=E&folderindex=0&folderid=3&headingindex=5&headingid=80&tabindex=1&tabid=273.
“Influence of MgO on Production Process and Material Characteristics of MAS Series Corundum Ceramics”, Jiangsu Ceramics, vol. 67, No. 4, 1994, pp. 1-7.

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