JPS5595628A - Grain boundary insulation type high permittivity porcelain composition - Google Patents
Grain boundary insulation type high permittivity porcelain compositionInfo
- Publication number
- JPS5595628A JPS5595628A JP217079A JP217079A JPS5595628A JP S5595628 A JPS5595628 A JP S5595628A JP 217079 A JP217079 A JP 217079A JP 217079 A JP217079 A JP 217079A JP S5595628 A JPS5595628 A JP S5595628A
- Authority
- JP
- Japan
- Prior art keywords
- porcelain
- compsn
- grain boundary
- high permittivity
- insulation type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To provide a grain boundary insulation type porcelain compsn. having high permittivity, inducing little temp. change and loss, and suitable for use as the dielectric of a capacitor, etc. by diffusing a specified metal oxide into a surface layer of strontium titanate type semiconductor porcelain of a specified compsn.
CONSTITUTION: SrTiO3, Nb2O5, Ta2O5, In2O3, Ga2O3, TiO2 and SrCo3 are blend ed, pulverized, press-molded, and calcined to form semiconductor porcelain. At this time, the raw materials are blended so that the a porcelain has compsn. represented by the formula. The surface of the porcelain is then coated with a predetermined amt. of BiO2-CuO mixed powder or the like and calcined, whereby the coated metal oxides are diffused into the porcelain, forming insulating layers at the grain boundary portions of the porcelain. Accordingly, a porcelain compsn. is obtd. having high insulation resistance and superior moisture resistance.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP217079A JPS5595628A (en) | 1979-01-16 | 1979-01-16 | Grain boundary insulation type high permittivity porcelain composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP217079A JPS5595628A (en) | 1979-01-16 | 1979-01-16 | Grain boundary insulation type high permittivity porcelain composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5595628A true JPS5595628A (en) | 1980-07-21 |
JPS5755672B2 JPS5755672B2 (en) | 1982-11-25 |
Family
ID=11521880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP217079A Granted JPS5595628A (en) | 1979-01-16 | 1979-01-16 | Grain boundary insulation type high permittivity porcelain composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5595628A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5861681U (en) * | 1981-10-22 | 1983-04-26 | トヨタ自動車株式会社 | Automotive cowl atsuba panel |
JPH0356407Y2 (en) * | 1985-01-16 | 1991-12-18 | ||
JPS63111369U (en) * | 1987-01-13 | 1988-07-18 |
-
1979
- 1979-01-16 JP JP217079A patent/JPS5595628A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5755672B2 (en) | 1982-11-25 |
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