JPS5453297A - Ferrodielectric piezo-electric porcelain material - Google Patents
Ferrodielectric piezo-electric porcelain materialInfo
- Publication number
- JPS5453297A JPS5453297A JP7720778A JP7720778A JPS5453297A JP S5453297 A JPS5453297 A JP S5453297A JP 7720778 A JP7720778 A JP 7720778A JP 7720778 A JP7720778 A JP 7720778A JP S5453297 A JPS5453297 A JP S5453297A
- Authority
- JP
- Japan
- Prior art keywords
- piezo
- ferrodielectric
- porcelain material
- electric porcelain
- pbzro
- 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
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
PURPOSE: To obtain a material with excellent Kp-ε-tanδ-Qm properties, stability to the impressed voltage, and fracture strength by combining multiple oxide, Ba2Nb2O7 with PbTiO3 and PbZrO3.
CONSTITUTION: Mixing powdered oxides of Pb, Ti, Zr, Ba, and Nb, calcinating, and exposing to polarization treatment to produce a dielectric piezo-dielectric porcelain, wherein molar ratios of Ba2Nb2O7, PbTiO3, and PbZrO3 are composed so that 0.2≤y, z≤0.8, y+z=1.0, 0.001≤x≤0.2 in the formula (1-x)Pb (TiyZrz) 03.x(Ba2Nb2O7)1/2. Qm and tanδ are improved without any change of Kp and ε by adding 0.01-3.0% by weight of Mn reduced as MnO2 equivalent to the composition. Pb in the multiple oxide may be substituted with Sr, Cd, or Ba
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7720778A JPS5453297A (en) | 1978-06-26 | 1978-06-26 | Ferrodielectric piezo-electric porcelain material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7720778A JPS5453297A (en) | 1978-06-26 | 1978-06-26 | Ferrodielectric piezo-electric porcelain material |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6652677A Division JPS52151900A (en) | 1977-06-06 | 1977-06-06 | Strong dielectric piezo porcelain material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5453297A true JPS5453297A (en) | 1979-04-26 |
JPS5428957B2 JPS5428957B2 (en) | 1979-09-20 |
Family
ID=13627372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7720778A Granted JPS5453297A (en) | 1978-06-26 | 1978-06-26 | Ferrodielectric piezo-electric porcelain material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5453297A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5943240B2 (en) * | 1980-09-22 | 1984-10-20 | 株式会社 西原環境衛生研究所 | Intermittent cycle activated sludge treatment method |
-
1978
- 1978-06-26 JP JP7720778A patent/JPS5453297A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5428957B2 (en) | 1979-09-20 |
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