Sintered electroconductive oxide, thermister element using sintered electroconductive oxide, and temperature sensor using thermister element
US7656269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2006 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Sep 18, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K2205/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
According to an aspect of the present invention, there is provided a sintered electroconductive oxide containing a perovskite phase of perovskite-type crystal structure represented by the composition formula: M1aM2bM3cAldCreOf where M1 is at least one of elements of group 3A other than La; M2 is at least one of elements of group 2A; M3 is at least one of elements of groups 4A, 5A, 6A, 7A and 8 other than Cr; and a, b, c, d, e and f satisfy the following conditional expressions:0.600≦a≦1.000;0≦b≦0.400;0.150≦c<0.600;0.400≦d≦0.800;0<e≦0.050;0<e/(c+e)≧0.18; and2.80≦f≦3.30.With the use of this conductive oxide sintered body, it becomes possible to carry out proper temperature measurements over the temperature range from a low temperature of −40° C. to a high temperature of 900° C. or higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.