Method of manufacturing a voltage-nonlinear resistor
US4265844A · kind A · utility
9Cited by
17References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 1980 |
| Grant date | May 5, 1981 |
| Priority date | — |
| Expiry date | May 7, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/112
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing a voltage-nonlinear resistor which has a substantially symmetrical voltage-current characteristic and a large voltage-nonlinearity coefficient and which is thus well resistant to surge voltage. The method comprises: preparing a ZnO-based composition containing metal zinc, at least one metal oxide such as bismuth oxide and at least one spinel type crystalline compound such as spinel type crystalline chromium compound, shaping the ZnO-based composition to form a body, and sintering the body of composition in the air at 1,000.degree. C. or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.