Patent · US Active

Fixed abrasive articles utilizing coated abrasive particles

US7959695B2 · kind B2 · utility

5Cited by

17References

21Claims

0Family size

Assignee

SAINT-GOBAIN CERAMICS & PLASTICS, INC. · US

Inventors

Doruk O. Yener · Wilmington, US
Alan J. Brandes · Rutland, US
Ralph Bauer · Eßlingen, DE

Key dates

Filing date	Mar 21, 2008
Grant date	Jun 14, 2011
Priority date	—
Expiry date	Mar 31, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C16/401
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An fixed abrasive article is provided which includes a matrix material and abrasive particles embedded within the matrix material. The abrasive particles have a core-shell structure that includes a polycrystalline alpha alumina core and a shell layer overlying the polycrystalline alpha alumina core. The shell layer includes a material selected from the group consisting of silicon oxide and zirconium oxide. Also the polycrystalline alpha alumina core includes grains and having an average grain size of not greater than about 500 nm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.