JPS5453297A - Ferrodielectric piezo-electric porcelain material - Google Patents

Ferrodielectric piezo-electric porcelain material

Info

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
Application number
JP7720778A
Other languages
Japanese (ja)
Other versions
JPS5428957B2 (en
Inventor
Yoichi Tanaka
Masamichi Tsuruta
Makoto Hori
Koji Takahashi
Tsutomu Hasegawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Priority to JP7720778A priority Critical patent/JPS5453297A/en
Publication of JPS5453297A publication Critical patent/JPS5453297A/en
Publication of JPS5428957B2 publication Critical patent/JPS5428957B2/ja
Granted legal-status Critical Current

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  • 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
JP7720778A 1978-06-26 1978-06-26 Ferrodielectric piezo-electric porcelain material Granted JPS5453297A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS5428957B2 (en) 1979-09-20

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