Abrasive articles including abrasive particles of silicon nitride
US8986409B2 · kind B2 · utility
1Cited by
350References
20Claims
0Family size
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Key dates
| Filing date | Jun 30, 2012 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Nov 27, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/1418
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An abrasive article includes a body having abrasive particles contained within a bond material. The abrasive particles can include a majority content of silicon nitride and a minority content of sintering material including at least two rare-earth oxide materials. In an embodiment, the rare-earth oxide materials can include Nd2O3 and Y2O3. In a particular embodiment, the abrasive particles comprise a content (wt %) of Nd2O3 that is greater than a content of Y2O3 (wt %).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.