JPS5748280A - Piezoelectric ceramic compound - Google Patents
Piezoelectric ceramic compoundInfo
- Publication number
- JPS5748280A JPS5748280A JP55123876A JP12387680A JPS5748280A JP S5748280 A JPS5748280 A JP S5748280A JP 55123876 A JP55123876 A JP 55123876A JP 12387680 A JP12387680 A JP 12387680A JP S5748280 A JPS5748280 A JP S5748280A
- Authority
- JP
- Japan
- Prior art keywords
- main component
- polarization
- 1mol
- annex
- alpha
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title 1
- 150000001875 compounds Chemical class 0.000 title 1
- 230000010287 polarization Effects 0.000 abstract 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract 2
- 230000005684 electric field Effects 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/853—Ceramic compositions
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
PURPOSE:To make polarization possible with a small electric field intensity, in a low polarization temperature and during a short time as well by limiting a component ratio within a specified range. CONSTITUTION:A substance having the molecular formula (1) is a main component [0.15<=X<=0.40, 0<=alpha<=1 in the formula (1)], and 0.05-20wt% of MnO2 is added as an annex to 1mol weight of the main component, and furthermore 10wt% of In2O3 is added as an annex to 1mol weight of the main component if necessary. The reason for limiting X of the main component within 0.15-0.40 is that evaporation of PbO occurs in baking process in case of taking a value below 0.15 and polarization condition becomes difficult because of shifting of polarization condition into a high temperature and a high voltage. On the contrary piezoelectricity become lower in case of a value over 0.40. And substitution of La and Nd into Pb position is effective even if one of them is taken, so alpha is taken to be 0-1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55123876A JPS5748280A (en) | 1980-09-05 | 1980-09-05 | Piezoelectric ceramic compound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55123876A JPS5748280A (en) | 1980-09-05 | 1980-09-05 | Piezoelectric ceramic compound |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5748280A true JPS5748280A (en) | 1982-03-19 |
Family
ID=14871552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55123876A Pending JPS5748280A (en) | 1980-09-05 | 1980-09-05 | Piezoelectric ceramic compound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5748280A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60167438U (en) * | 1984-04-16 | 1985-11-07 | 株式会社日立製作所 | Digital PLL with frequency judgment function |
-
1980
- 1980-09-05 JP JP55123876A patent/JPS5748280A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60167438U (en) * | 1984-04-16 | 1985-11-07 | 株式会社日立製作所 | Digital PLL with frequency judgment function |
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