Particulate lead titanate ceramic and composite material containing same
US4874727A · kind A · utility
3Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1987 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Aug 20, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24917
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A particulate lead titanate ceramic obtained by calcining a mixture containing TiO.sub.2 and PbO at 1150.degree.-1300.degree. C., the proportion of the PbO being greater than 1 mole per mole of the TiO.sub.2. A composite material having the particulate lead titanate ceramic supported in an organic substrate exhibits improved piezoelectric properties and is useful as a piezoelectric element or pyroelectric element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.