JPH03241703A - Porcelain composition for voltage nonlinear resistor - Google Patents
Porcelain composition for voltage nonlinear resistorInfo
- Publication number
- JPH03241703A JPH03241703A JP2039189A JP3918990A JPH03241703A JP H03241703 A JPH03241703 A JP H03241703A JP 2039189 A JP2039189 A JP 2039189A JP 3918990 A JP3918990 A JP 3918990A JP H03241703 A JPH03241703 A JP H03241703A
- Authority
- JP
- Japan
- Prior art keywords
- nonlinear resistor
- voltage nonlinear
- voltage
- composition
- internal electrode
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 20
- 229910052573 porcelain Inorganic materials 0.000 title claims 2
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 abstract description 8
- 239000007772 electrode material Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 abstract 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(II) oxide Inorganic materials [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 abstract 1
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 5
- 238000001354 calcination Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002003 electrode paste Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Thermistors And Varistors (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は電圧非直線抵抗体用磁器組成物に関し、特に
たとえば異常電圧を吸収するためなどに用いられる電圧
非直線抵抗体用磁器組成物に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention relates to a ceramic composition for a voltage nonlinear resistor, and more particularly to a ceramic composition for a voltage nonlinear resistor used, for example, to absorb abnormal voltage. .
（従来技術）
従来の電圧非直線抵抗体用磁器組成物としては、たとえ
ばＺｎＯを主成分とし、添加物としてＢｉ２Ｏ３または
Ｐｒ６０ＩＩを含むものがあった。このような材料を用
いて、ディスク型または積層型の電圧非直線抵抗体素子
が製造されている。(Prior Art) Conventional ceramic compositions for voltage non-linear resistors include, for example, those containing ZnO as a main component and Bi2O3 or Pr60II as an additive. Disk-type or laminated-type voltage nonlinear resistor elements are manufactured using such materials.
特に、近年、電子部品のチップ化が進み、積層型の電圧
非直線抵抗体素子が提案されている。この電圧非直線抵
抗体素子は、電極用材料を塗布した電圧非直線抵抗体用
磁器組成物のグリーンシートを積層し、焼成することに
よって形成される。In particular, in recent years, the use of electronic components as chips has progressed, and multilayer voltage nonlinear resistor elements have been proposed. This voltage nonlinear resistor element is formed by laminating green sheets of a ceramic composition for a voltage nonlinear resistor coated with an electrode material and firing them.
このようなＺｎＯを主成分とした電圧非直線抵抗体用磁
器組成物では、ディスク型および積層型にかかわらず、
Ｂｉ２Ｏ３またはＰｒ６０ＩＩを添加することによって
所望の電圧非直線性を得ている。In such a ceramic composition for a voltage nonlinear resistor containing ZnO as a main component, regardless of whether it is a disk type or a laminated type,
The desired voltage nonlinearity is obtained by adding Bi2O3 or Pr60II.
（発明が解決しようとする課題）
しかしながら、積層型の電圧非直線抵抗体素子は、ディ
スク型のものに比べてサージに弱く、ＺｎｏにＢｉｚＯ
ｓを添加した材料を用いたもので、最大電圧ＬＯＯＡ、
８／２０μｓの衝撃電圧に耐え得るものがほとんどなか
った。(Problems to be Solved by the Invention) However, the laminated type voltage nonlinear resistor element is more susceptible to surges than the disk type one, and BizO
It uses a material added with s, and the maximum voltage LOOA,
There were almost no products that could withstand the impact voltage of 8/20 μs.
それゆえに、この発明の主たる目的は、積層型としても
、大きいサージに耐え得る電圧非直線抵抗体素子を得る
ことができる、電圧非直線抵抗体用磁器組成物を提供す
ることである。Therefore, the main object of the present invention is to provide a ceramic composition for a voltage non-linear resistor, which can provide a voltage non-linear resistor element that can withstand large surges even in the case of a laminated type.
（課題を解決するための手段）
この発明は、ＺｎＯを主成分とし、添加物としてＢｉ化
合物を含む電圧非直線抵抗体用磁器組成物において、Ｂ
ｉ化合物のうち３％以上をＢｉＦ、としたことを特徴と
する、電圧非直線抵抗体用磁器組成物である。(Means for Solving the Problems) The present invention provides a ceramic composition for a voltage nonlinear resistor that contains ZnO as a main component and contains a Bi compound as an additive.
This is a ceramic composition for a voltage nonlinear resistor, characterized in that 3% or more of the i-compound is BiF.
（発明の効果）
この発明によれば、積層型としても、大きいサージに耐
え得る電圧非直線抵抗体素子を製造することができる、
電圧非直線抵抗体用磁器組成物を得ることができる。(Effects of the Invention) According to the present invention, it is possible to manufacture a voltage nonlinear resistor element that can withstand large surges even if it is a laminated type.
A ceramic composition for a voltage nonlinear resistor can be obtained.
この発明の上述の目的、その他の目的、特徴および利点
は、図面を参照して行う以下の実施例の詳細な説明から
一層明らかとなろう。The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.
（実施例） まず、原料として、純度９９％以上のＺｎＯ。(Example) First, ZnO with a purity of 99% or more is used as a raw material.
Ｃｏｏ、ＭｎＯ，Ｓｂ、Ｏ，、Ｂ ｉ、Ｏ，を準備した
。これらの原料を、ＺｎＯが９８．０モル％Ｃｏｏが０
． ５モル％、ＭｎＯが０．５モル％。Coo, MnO, Sb, O,, B i, O, were prepared. These raw materials were mixed with ZnO of 98.0 mol% and Coo of 0.
．． 5 mol%, MnO 0.5 mol%.
５ｂｚＯｉが０．５モル％、Ｂｉ２Ｏ３が０．５モル％
となるように秤量し、秤量物を得た。5bzOi is 0.5 mol%, Bi2O3 is 0.5 mol%
A weighed product was obtained.
さらに、上述の原料のうち、ＢｉｚＯ３の一部または全
部をＢ ｉ Ｆ ｚに置き換えた秤量物を得た。Furthermore, a weighed product was obtained in which part or all of BizO3 was replaced with B i F z among the above-mentioned raw materials.
これらの秤量物に純水を加えて、ボールミルで２４時間
混合して混合物を得た。この混合物をろ過乾燥後、８０
０°Ｃで２時間仮焼して仮焼物を得た。この仮焼物を粉
砕したのち、ポリビニルブチラール樹脂とともにアルコ
ール中に分散させ、スラリーとした。このスラリーから
ドクターブレード法により、グリーンシートを得た。得
られたグリーンシートを所定の大きさに打ち抜き、Ａｇ
Ｐｄ合金とビヒクルとからなるペーストを内部電極用材
料として印刷した。Pure water was added to these weighed materials and mixed in a ball mill for 24 hours to obtain a mixture. After filtering and drying this mixture,
A calcined product was obtained by calcining at 0°C for 2 hours. After pulverizing this calcined product, it was dispersed in alcohol together with polyvinyl butyral resin to form a slurry. A green sheet was obtained from this slurry by a doctor blade method. The obtained green sheet was punched out to a predetermined size and Ag
A paste consisting of a Pd alloy and a vehicle was printed as a material for internal electrodes.
次に、第１図に示すように、内部電極用材料１２を印刷
したグリーンシート１４を、内部電極用材料１２が印刷
されないグリーンシート１５とともに積層圧着し、積層
物を得た。この積層物を１０００℃で２時間焼成し、内
部電極１６の形成された焼結体１８を得た。この焼結体
１８の端面にＡｇを主成分とする外部電極用ペーストを
焼き付けて、第２図に示すような外部電極２０を形成し
た。このようにして、第３図に示すような電圧非直線抵
抗体素子１０を得た。Next, as shown in FIG. 1, the green sheet 14 on which the internal electrode material 12 was printed was laminated and pressed together with the green sheet 15 on which the internal electrode material 12 was not printed, to obtain a laminate. This laminate was fired at 1000° C. for 2 hours to obtain a sintered body 18 on which internal electrodes 16 were formed. An external electrode paste containing Ag as a main component was baked onto the end face of this sintered body 18 to form an external electrode 20 as shown in FIG. 2. In this way, a voltage nonlinear resistor element 10 as shown in FIG. 3 was obtained.
得られた電圧非直線抵抗体素子１０を試料として、バリ
スタ電圧ｖ１．Ａ （ｖ）、非直線係数αおよびサージ
耐量（Ａ）を測定した。サージ耐量は、各試料に５分間
隔で２回、８／２０μｓの衝撃電流を印加し、バリスタ
電圧が１０％以上変化しない限界の電流値を測定した。Using the obtained voltage nonlinear resistor element 10 as a sample, the varistor voltage v1. A (v), nonlinear coefficient α, and surge resistance (A) were measured. The surge resistance was determined by applying an impact current of 8/20 μs to each sample twice at 5-minute intervals, and measuring the limit current value at which the varistor voltage did not change by 10% or more.
そして、その結果を表に示した。なお、＊印は、この発
明の範囲外のものである。The results are shown in the table. Note that *marks are outside the scope of this invention.
表中、Ｂ ｉ Ｆ、量は、Ｂｉ２Ｏ２とＢ ｉ Ｆ ３
との合計に対するＢｉＦ３の量を百分率で示した。In the table, B i F and the amount are Bi2O2 and B i F 3
The amount of BiF3 relative to the total amount is shown as a percentage.
表かられかるように、この発明の電圧非直線抵抗体用磁
器組成物を用いた電圧非直線抵抗体素子では、従来のも
のに比べて、サージ耐量を５倍以上にすることができる
。なお、この実施例では、積層型の電圧非直線抵抗体素
子について説明したが、この発明の電圧非直線抵抗体用
磁器組成物は、ディスク型など他の電圧非直線抵抗体素
子に応用できることはいうまでもない。As can be seen from the table, the voltage non-linear resistor element using the voltage non-linear resistor ceramic composition of the present invention can have a surge resistance five times or more as compared to the conventional one. Although this example describes a multilayer voltage nonlinear resistor element, the ceramic composition for a voltage nonlinear resistor of the present invention can be applied to other voltage nonlinear resistor elements such as a disk type. Needless to say.
また、上記実施例では、ＢｉＦｚを他の原料とともに混
合して仮焼する工程を含む電圧非直線抵抗体素子の製造
方法を示したが、Ｂ ｉ Ｆ ｓを他の原料粉末に混合
して仮焼した後、仮焼物を粉砕する際に添加するように
してもよい。この場合、上記実施例とほぼ同様の効果が
得られることを確認した。Further, in the above embodiment, a method for manufacturing a voltage nonlinear resistor element including a step of mixing BiFz with other raw materials and calcining it was shown, but it is also possible to mix BiFs with other raw material powder and calcining it. After baking, it may be added when crushing the calcined product. In this case, it was confirmed that substantially the same effects as in the above embodiment could be obtained.
第１図は積層型の電圧非直線抵抗体素子を作成する工程
を示す斜視図である。
第２図は積層型の電圧非直線抵抗体素子の内部構造を示
す図解図である。
第３図は第２図に示す電圧非直線抵抗体素子の斜視図で
ある。
図において、ＩＯは電圧非直線抵抗体素子、１２は内部
電極用材料、１４はグリーンシート、１６は電極、１８
は焼結体、２０は外部電極を示す。
表
＊印はこの発明の範囲外
ｅ）FIG. 1 is a perspective view showing the process of creating a multilayer voltage nonlinear resistor element. FIG. 2 is an illustrative diagram showing the internal structure of a multilayer voltage nonlinear resistor element. FIG. 3 is a perspective view of the voltage nonlinear resistor element shown in FIG. 2. In the figure, IO is a voltage nonlinear resistor element, 12 is an internal electrode material, 14 is a green sheet, 16 is an electrode, and 18
indicates a sintered body, and 20 indicates an external electrode. *marked table is outside the scope of this invention e)
Claims (1)
圧非直線抵抗体用磁器組成物において、前記Ｂｉ化合物
のうち３％以上をＢｉＦ＿３としたことを特徴とする、
電圧非直線抵抗体用磁器組成物。A ceramic composition for a voltage non-linear resistor that contains ZnO as a main component and contains a Bi compound as an additive, characterized in that 3% or more of the Bi compound is BiF_3,
Porcelain composition for voltage nonlinear resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2039189A JPH03241703A (en) | 1990-02-19 | 1990-02-19 | Porcelain composition for voltage nonlinear resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2039189A JPH03241703A (en) | 1990-02-19 | 1990-02-19 | Porcelain composition for voltage nonlinear resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03241703A true JPH03241703A (en) | 1991-10-28 |
Family
ID=12546164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2039189A Pending JPH03241703A (en) | 1990-02-19 | 1990-02-19 | Porcelain composition for voltage nonlinear resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03241703A (en) |
-
1990
- 1990-02-19 JP JP2039189A patent/JPH03241703A/en active Pending
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