Zirconia particles
US7429422B2 · kind B2 · utility
32Cited by
51References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2007 |
| Grant date | Sep 30, 2008 |
| Priority date | — |
| Expiry date | Jun 7, 2027 |
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.