JPS6410955B2 - - Google Patents
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- Publication number
- JPS6410955B2 JPS6410955B2 JP56195310A JP19531081A JPS6410955B2 JP S6410955 B2 JPS6410955 B2 JP S6410955B2 JP 56195310 A JP56195310 A JP 56195310A JP 19531081 A JP19531081 A JP 19531081A JP S6410955 B2 JPS6410955 B2 JP S6410955B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- added
- piezoelectric ceramic
- piezoelectric
- temperature
- 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.)
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Inorganic Insulating Materials (AREA)
Description
【発明の詳細な説明】
本発明は、ジルコン・チタン酸鉛系圧電磁器組
成物の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in zircon-lead titanate-based piezoelectric ceramic compositions.
従来、ジルコン・チタン酸鉛系圧電磁器組成物
の改良が行なわれたが、その改良のほとんどが圧
電定数ｄ、電圧出力係数ｇ、誘電率ε、メカニカ
ルQM等を増大させたり、共振周波数rの温度特
性、経時変化特性を良くするものであつた。これ
らのものはガス着火素子、圧電ブザー素子、超音
波振動子などの変換素子として使用する場合は良
いが、力や圧力あるいは加速度ピツクアツプ素子
として使用する場合は、計測用素子としての重要
な圧電定数ｄの温度特性や、経時変化特性の点で
充分ではなかつた。 In the past, improvements have been made to zircon-lead titanate-based piezoelectric ceramic compositions, but most of these improvements have resulted in increases in the piezoelectric constant d, voltage output coefficient g, dielectric constant ε, mechanical QM, etc., or changes in the resonance frequency r. This improved the temperature characteristics and aging characteristics. These devices are good when used as conversion elements such as gas ignition elements, piezoelectric buzzer elements, and ultrasonic vibrators, but when used as force, pressure, or acceleration pickup elements, the piezoelectric constant is important as a measurement element. The temperature characteristics and aging characteristics of d were not sufficient.
本発明は、上記欠点を除去するものでジルコ
ン・チタン酸鉛組成物に0.1〜2.0重量％のSb、
Cr、の酸化物を添加することにより、圧電定数
ｄの温度特性、経時変化特性が良好でかつ容易に
焼成できる圧電磁器組成物を提供するものであ
る。 The present invention eliminates the above-mentioned drawbacks by adding 0.1 to 2.0% by weight of Sb to the zircon-lead titanate composition.
By adding an oxide of Cr, it is possible to provide a piezoelectric ceramic composition that has good temperature characteristics and aging characteristics of the piezoelectric constant d and can be easily fired.
本発明の圧電磁器組成物の基本組成式は、Pb
（Tix−Zr1-x）O3ただしｘ＝0.47〜0.52で表はされ
るもので、これに0.2〜2.0重量％のSb、0.1〜0.5
重量％のCr、の酸化物の少なくともいずれか一
種を添加する。 The basic compositional formula of the piezoelectric ceramic composition of the present invention is Pb
(Ti x −Zr 1-x ) O 3 However, x = 0.47 to 0.52, and 0.2 to 2.0% by weight of Sb, 0.1 to 0.5
At least one kind of oxide of Cr is added in an amount of % by weight.
本発明の一実施例としての圧電磁器を製造する
には、原料としては試薬として一級のものを使用
し、第１表に記載のような組成になるように秤量
し混合したものを約1000℃の温度で約90分間仮焼
した後粉砕し、バインダーを添加して造粒を行な
い直径24mm、厚み15mmの寸法に成型する。成型し
た物を1300℃の温度で約60分間保持して本焼成す
る。焼成した磁器は直径20mm、厚み１mmに研磨し
た後両面に銀電極を焼付ける。分極は150℃のシ
リコンオイル中で20kV／cmの直流電圧を10分間
印加して行つた。上記製造工程で製作した圧電磁
器の測定結果を第１表に示してある。次に表１の
試料No.３，８，13，18，23，25組成物の圧電定数
d31の経時変化率の特性を第２表に示した。第１，
２，３図はそれぞれ本発明の各組成による圧電定
数d31の温度係数特性図で、第１図は基本組成物
Pb（Tix−Zr1-x）O3に添加剤1.0wt％Sb2O3を加え
てPbTiO3のXmolを変えた時の特性図でＸの値
が0.47〜0.52の所で温度特性が良いことがわか
る。第２図は基本組成式Pb（Tix−Zr1-x）O3の
PbTiO3を0.485molに固定して添加剤Sb2O3を変
えた場合時の特性図でSb2O3の添加量により温度
傾斜が負から正に変わり任意に選択できる。第３
図は第２図と同様に0.458mol PbTiO3に添加剤
Sb2O3を1.0wt％加えさらに添加剤Cr2O3、
MnCO3、WO3、FeO3、Ga2O3を加えた場合の特
性図でCr、Mnは温度傾斜を正から負に変えるが
Ｗ、Fe、Gaは効果がない。 To manufacture the piezoelectric ceramic as an embodiment of the present invention, first-class reagents are used as raw materials, and the mixture is weighed and mixed to have the composition shown in Table 1 at about 1000°C. After calcining for about 90 minutes at a temperature of , it is pulverized, a binder is added, and it is granulated to a size of 24 mm in diameter and 15 mm in thickness. The molded product is held at a temperature of 1300°C for approximately 60 minutes for final firing. The fired porcelain is polished to a diameter of 20 mm and thickness of 1 mm, and then silver electrodes are baked on both sides. Polarization was performed in silicone oil at 150°C by applying a DC voltage of 20 kV/cm for 10 minutes. Table 1 shows the measurement results of the piezoelectric ceramic manufactured by the above manufacturing process. Next, the piezoelectric constants of sample Nos. 3, 8, 13, 18, 23, and 25 compositions in Table 1
Table 2 shows the characteristics of the rate of change over time of d31 . 1st,
Figures 2 and 3 are temperature coefficient characteristic diagrams of the piezoelectric constant d 31 for each composition of the present invention, and Figure 1 is for the basic composition.
In the characteristic diagram when the additive 1.0wt% Sb 2 O 3 is added to Pb(Ti x −Zr 1-x ) O 3 and the Xmol of PbTiO 3 is changed, the temperature characteristics change when the value of X is 0.47 to 0.52. I know it's good. Figure 2 shows the basic composition formula Pb(Ti x −Zr 1-x )O 3 .
In the characteristic diagram when PbTiO 3 is fixed at 0.485 mol and the additive Sb 2 O 3 is changed, the temperature slope changes from negative to positive depending on the amount of Sb 2 O 3 added, and can be selected arbitrarily. Third
The figure shows additives in 0.458mol PbTiO 3 as in Figure 2.
Added 1.0wt% Sb 2 O 3 and further added additives Cr 2 O 3 ,
In the characteristic diagram when MnCO 3 , WO 3 , FeO 3 , and Ga 2 O 3 are added, Cr and Mn change the temperature gradient from positive to negative, but W, Fe, and Ga have no effect.
上述したように、本発明はPb（Tix−Zr1-x）
O3、ただし、ｘ＝0.47〜0.52で表わされるジルコ
ン・チタン酸鉛組成物に0.2〜2.0重量％のSb、0.1
〜0.5重量％のCr、の酸化物を添加して焼成する
ことにより、圧電定数ｄの温度特性、経時変化特
性が良好な圧電磁器組成物が得られ、計測用素子
として最適でありかつ出力感度等の他の特性につ
いても良好でありその効果は顕著である。 As mentioned above, the present invention utilizes Pb(Ti x −Zr 1-x )
O 3 , where 0.2 to 2.0% by weight of Sb, 0.1
By adding ~0.5% by weight of Cr oxide and firing, a piezoelectric ceramic composition with good temperature characteristics and aging characteristics of the piezoelectric constant d can be obtained, making it ideal as a measurement element and with high output sensitivity. Other properties such as these are also good, and the effect is remarkable.
第１図は本発明一実施例の添加剤1.0wt％Sbを
一定にしてXmol PbTiO3を変えた場合の特性
図、第２図は同じく0.485mol PbTiO3に固定し
添加剤Sbの量を変えた場合の特性図、第３図は
同じく0.485mol PbTiO3と添加剤1.0wt％Sbを一
定にしてさらに添加剤としてCr、Mn、Ｗ、Fe、
Gaを加えた場合の特性図である。
Figure 1 is a characteristic diagram of an example of the present invention when the additive 1.0 wt% Sb is kept constant and Xmol PbTiO 3 is varied, and Figure 2 is the same when fixed at 0.485 mol PbTiO 3 and the amount of additive Sb is varied. Figure 3 shows the characteristic diagram for the case where 0.485mol PbTiO 3 and additive 1.0wt%Sb are kept constant, and Cr, Mn, W, Fe,
It is a characteristic diagram when Ga is added.
【表】【table】
【表】【table】
【表】【table】
Claims (1)
り、これに0.2〜2.0重量％のSb、0.1〜0.5重量％
のCrの酸化物の少なくともいずれか一種を添加
焼成してなる圧電磁器組成物。[Scope of Claims] 1 Consisting of a zircon-lead titanate solid solution represented by Pb(Ti x -Zr 1-x )O 3 (where x=0.47 to 0.52), to which 0.2 to 2.0% by weight of Sb and 0.1% by weight are added. ~0.5% by weight
A piezoelectric ceramic composition obtained by firing and adding at least one kind of Cr oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56195310A JPS5896787A (en) | 1981-12-04 | 1981-12-04 | Piezo-electric ceramic composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56195310A JPS5896787A (en) | 1981-12-04 | 1981-12-04 | Piezo-electric ceramic composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5896787A JPS5896787A (en) | 1983-06-08 |
| JPS6410955B2 true JPS6410955B2 (en) | 1989-02-22 |
Family
ID=16339023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56195310A Granted JPS5896787A (en) | 1981-12-04 | 1981-12-04 | Piezo-electric ceramic composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5896787A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020105149A1 (en) * | 2018-11-21 | 2020-05-28 | 株式会社エイチ・ディー・エス | Polyhedral toy |
-
1981
- 1981-12-04 JP JP56195310A patent/JPS5896787A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020105149A1 (en) * | 2018-11-21 | 2020-05-28 | 株式会社エイチ・ディー・エス | Polyhedral toy |
| US11524222B2 (en) | 2018-11-21 | 2022-12-13 | Hanayama International Trading Limited | Polyhedral toy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5896787A (en) | 1983-06-08 |
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