Zirconia particles
US7674523B2 · kind B2 · utility
12Cited by
56References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2008 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Aug 19, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Zirconia particles, methods of making zirconia particles, composite materials that contain the zirconia particles, methods of making the composite materials, and zirconia sols that contain the zirconia particles are described. The zirconia particles are substantially non-associated and have an average size no greater than 50 nanometers and may contain yttrium. The zirconia particles are prepared by a method that includes two separate hydrothermal treatments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.