JPS5460499A - Ferroelectric piezoelectric porcelain material - Google Patents
Ferroelectric piezoelectric porcelain materialInfo
- Publication number
- JPS5460499A JPS5460499A JP7720678A JP7720678A JPS5460499A JP S5460499 A JPS5460499 A JP S5460499A JP 7720678 A JP7720678 A JP 7720678A JP 7720678 A JP7720678 A JP 7720678A JP S5460499 A JPS5460499 A JP S5460499A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- piclore
- tan
- piezoelectric porcelain
- porcelain material
- 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 improve stability to applied voltage and deflective strength with the balance among kp-ε-Qm-tan δ kept good through the composition with Pb (Tiy Zrz)O3 and a piclore type composite oxide Sr2Sb2O7.
CONSTITUTION: Sr2Sb2O7 PBTIO3 and pbZrO3 made of oxides, carbonates, organic acid salts and the like of Pb, Ti, Zr, Sr and Sb as powdery raw materials are so blended as to compose a compound representing (1-x)Pb(TiyZrz)O3.x(Sr2Sb2 O7)1/2, provided that 0.2<y, z<0.8, y+z=1.0 and 0.001≤ x≤ 0.2. The compound thus composed is pressurized into a mold, sintered and polarized to form a piezoelectric porcelain. Here, one of the piclore elements, can be substituted by Cd, Pb or Ba. In addition, when this compound is provided with Mn of 0.01∼3.0% by weight of MnO2 equivalent thereto, Qm and tan δ are farther improved. This material is adapted for tremblers for high power ultrasonic wave generator or wide range ceramic filter
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7720678A JPS5460499A (en) | 1978-06-26 | 1978-06-26 | Ferroelectric piezoelectric porcelain material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7720678A JPS5460499A (en) | 1978-06-26 | 1978-06-26 | Ferroelectric piezoelectric porcelain material |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6652777A Division JPS5328300A (en) | 1977-06-06 | 1977-06-06 | Ferrodielectric mate rial for piezo-electric porcelain |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5460499A true JPS5460499A (en) | 1979-05-15 |
JPS5426718B2 JPS5426718B2 (en) | 1979-09-05 |
Family
ID=13627347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7720678A Granted JPS5460499A (en) | 1978-06-26 | 1978-06-26 | Ferroelectric piezoelectric porcelain material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5460499A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62298191A (en) * | 1986-06-18 | 1987-12-25 | Hitachi Metals Ltd | Piezoelectric porcelain composition |
-
1978
- 1978-06-26 JP JP7720678A patent/JPS5460499A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62298191A (en) * | 1986-06-18 | 1987-12-25 | Hitachi Metals Ltd | Piezoelectric porcelain composition |
Also Published As
Publication number | Publication date |
---|---|
JPS5426718B2 (en) | 1979-09-05 |
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