Submicron alpha alumina high temperature bonded abrasives

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United States of America Patent

PATENT NO 9144887
APP PUB NO 20140144087A1
SERIAL NO

14170081

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Abstract

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A high temperature bonded abrasive includes alumina abrasive grits, and a vitreous bond matrix in which the alumina abrasive grits are distributed, the vitreous bond matrix having a cure temperature not less than 1000° C. The alumina abrasive grits include polycrystalline alpha alumina having a fine crystalline microstructure characterized by an alpha alumina average domain size not greater than 500 nm, and the alumina abrasive grits further include a pinning agent that is a dispersed phase in the polycrystalline alpha alumina.

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Patent Owner(s)

Patent OwnerAddress
SAINT-GOBAIN CERAMICS & PLASTICS INCWORCESTER MASSACHUSETTS 01615-0138

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bauer, Ralph Niagara Falls, CA 93 3599
Skowron, Margaret L Niagara Falls, US 11 189

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