JPS61191555A - Dielectric ceramic composition - Google Patents
Dielectric ceramic compositionInfo
- Publication number
- JPS61191555A JPS61191555A JP60028638A JP2863885A JPS61191555A JP S61191555 A JPS61191555 A JP S61191555A JP 60028638 A JP60028638 A JP 60028638A JP 2863885 A JP2863885 A JP 2863885A JP S61191555 A JPS61191555 A JP S61191555A
- Authority
- JP
- Japan
- Prior art keywords
- dielectric ceramic
- ceramic composition
- dielectric
- less
- dielectric constant
- 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
Landscapes
- Ceramic Capacitors (AREA)
- Inorganic Insulating Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明はセラミックコンデンサ等に用いられる誘電体磁
器組成物に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a dielectric ceramic composition used in ceramic capacitors and the like.
従来の技術
従来、積層コンデンサには、チタン酸バリウム系の誘電
体が用いられてさだが、焼成温度が１２００℃以上の高
温であるため、内部電極には高価なパラジウムや白金を
使用する必要があった。Conventional technology Traditionally, barium titanate-based dielectrics have been used in multilayer capacitors, but because the firing temperature is high, over 1200°C, it is necessary to use expensive palladium or platinum for the internal electrodes. there were.
近年１０００℃以下で焼成が可能であり、内部電極とし
て銀を主体とする合金が使用できる誘電体が発明されて
いる。例えば、特開昭５７−６７２０９号公報には、
Ｐｂ（ＦｅｙＮｂＶ２）Ｘ（ＺｎｙＮｂ％）、（Ｍ（Ｆ
ｔ、６Ｗ％）２０． （ただし！＋７−１−Ｚ＝１ ）
で表わされる組成物が開示されており、２０ｏｏ〜２１
０００の比誘電率、０．４〜２１１％のｔ＆ｎδを有し
ている。また特開昭５８−７４５６９号公報には、 Ｐ
ｂ （Ｚｎ′Ｖ３ＮｂＶ３）ｚ （Ｍ９ｙＷｙ ）、
ＴｉｚＯ、（ただし！＋７＋Ｚ＝１ ）で表わされる組
成物が開示されており、１ｏｏｏ〜４０ｏｏの比誘電率
、Ｑ、１〜４％のｔａｎδを有している。In recent years, dielectric materials have been invented that can be fired at temperatures below 1000° C. and can use alloys mainly composed of silver as internal electrodes. For example, in Japanese Patent Application Laid-Open No. 57-67209,
Pb(FeyNbV2)X(ZnyNb%), (M(F
t, 6W%)20. (However!+7-1-Z=1)
A composition represented by: 20oo to 21 is disclosed.
It has a dielectric constant of 0.000 and a t&nδ of 0.4 to 211%. Also, in Japanese Patent Application Laid-open No. 58-74569, P
b (Zn'V3NbV3)z (M9yWy),
A composition represented by TizO, where !+7+Z=1 is disclosed, having a dielectric constant, Q, of 1 to 40 oo, and a tan δ of 1 to 4%.
発明が解決しようとする問題点
上記に例示したような１ｏｏｏ℃以下で焼成が可能な誘
電体は、大きな比誘電率を得られ易いが。Problems to be Solved by the Invention Dielectric materials that can be fired at temperatures below 100° C., such as those exemplified above, can easily obtain a large dielectric constant.
誘電体損失は比較的太；：（、ｔａｎδで表わした時、
０．１％以下である誘電体を得るのは困難であった。The dielectric loss is relatively large ;: (, when expressed as tanδ,
It has been difficult to obtain a dielectric with a content of less than 0.1%.
本発明は１ｏＯｏ℃以下で焼成が可能であり、１ｏｏｏ
以上の比誘電率を肩しかつｔａｎδが０．１％以下の誘
電体組成物を提供することを目的とする。The present invention can be fired at a temperature of 1oOo℃ or less, and
It is an object of the present invention to provide a dielectric composition having a relative dielectric constant of 0.1% or less and having a tan δ of 0.1% or less.
問題点を解決するだめの手段 本発明は上記問題点を解決するため。A foolproof way to solve problems The present invention aims to solve the above problems.
Ｐｂ （ＺｎｙＮｂＨ）Ｘ （Ｎ１ｙＮｂＨ）、 （Ｍ
９１ＡＷｙ）２０゜（ただしｘ＋ｙ＋ｚ＝１ ）で表わ
される組成物において、ｘ、ｙ、ｚを各々０．１≦Ｘ≦
０．８６゜ｏ、１ｇｙ−（０，４，０，０６≦２≦Ｏ，
Ｓの範囲に選定するものである。Pb (ZnyNbH)X (N1yNbH), (M
91AWy) 20° (where x+y+z=1), x, y, and z are each 0.1≦X≦
0.86゜o, 1gy-(0,4,0,06≦2≦O,
It is selected within the range of S.
作用
本発明によれば、 ｘｒ ’Ｉ ｖ ”を特定の範囲に
選定したため１０００℃以下で焼成が可能であり、１０
００以上の比誘電率と０．１％以下のｔａｎδを有する
コンデンサ材料が提供できる。Effect According to the present invention, since xr 'I v '' is selected within a specific range, firing is possible at 1000°C or less, and 10
A capacitor material having a dielectric constant of 0.00 or more and a tan δ of 0.1% or less can be provided.
実施例
原料として高純度のＰｂＯ、ｚｎｏ 、 Ｎｂ２Ｏ６，
ＮｉＯ。High purity PbO, zno, Nb2O6,
NiO.
Ｍｑｏ、Ｗｏ、を用い１表の組成に従って秤量し、めの
うの玉石と純水を加え、ポリエチレンポットで１６時間
混合し、乾燥後、７６０℃で２時間仮焼する。さらに前
述のポットで１５時間粉砕し乾燥する。その後ポリビニ
ルアルコール水溶液をバインダとして加え、直径１３ｉ
１ｆｆｊｆ、高さ１０ＭＮの円柱状に加圧成形し、バイ
ンダを焼却した後マグネシア磁器容器に入れ、９００〜
１０ｏｏ℃で２時間焼成した。焼成体を厚さ１間に切断
し１両面にｃｒ−ムＵを蒸着して電極を形成し、 Ｉ
ＫＨｚ 、 １ｖ／ｓｒ肩の室温での比誘電率、ｔａｎ
δを測定した。これらの結果を同表に示す。Using Mqo and Wo, weigh according to the composition in Table 1, add agate cobbles and pure water, mix in a polyethylene pot for 16 hours, dry, and then calcinate at 760°C for 2 hours. Furthermore, it is ground and dried in the pot described above for 15 hours. After that, polyvinyl alcohol aqueous solution was added as a binder, and a diameter 13i
1ffjf, cylindrical shape with a height of 10 MN, and after incinerating the binder, placed in a magnesia porcelain container,
It was baked at 100°C for 2 hours. The fired body was cut to a thickness of 1, and electrodes were formed by vapor depositing CR-M U on both sides.
KHz, 1v/sr Shoulder relative dielectric constant at room temperature, tan
δ was measured. These results are shown in the same table.
（以下余白）
表において＊印を付した試料は本発明で特定したｘ＋
Ｙ ｐ ”の範囲外の試料である。(The following is a margin) Samples marked with * in the table are x+ specified in the present invention.
This is a sample outside the range of Yp''.
図は、Ｐｂ （ＺｎｙＮｌ）２Ｉ３）０３． Ｐｂ （
Ｎ１ｙＮｂＨ）０３゜Ｐｂ（１ｕｙＷｙ）Ｏ，からなる
三元系の組織を示す図であって１図中線ムＢの外にある
試料（Ｎｏ、４）は焼成温度が１０００℃以上となるた
め除かれる。The figure shows Pb(ZnyNl)2I3)03. Pb (
This is a diagram showing the structure of a ternary system consisting of N1yNbH)03゜Pb(1uyWy)O, and the sample (No. 4) outside the line B in Figure 1 was excluded because the firing temperature was 1000℃ or higher. It will be destroyed.
また線ＢＣおよび＃ＣＤの外側にある試料（Ｎｏ。Also, samples outside the lines BC and #CD (No.
１４．１６）では比誘電率が１ｏｏｏ以下と小さくなる
ので除かれる。また線ムＤの外側ではｔａｎδが０・１
％以上になるので除かれる。14.16) has a small dielectric constant of 1ooo or less, so it is excluded. Also, outside the line D, tan δ is 0.1
% or more, so it is excluded.
表からも明らかなように−” ｙ ３’ ＋ ｚを、０
．１≦Ｘ ：Ｓｏ、８５ 、０．１≦ｙ≦０．４ 、０
．０６≦２≦Ｏ，Ｓに特定することにより、誘電体磁器
組成物は全て１ＱＯｏ℃以下で焼成が可能であり、積層
コンデンサを形成する時、安価な銀を主体とする内部電
極材料が使用できる。さらに、誘電体損失（ｔａｎδ）
が０．１％以下であり、１０００以上の比誘電率を有す
る組成物である。As is clear from the table, -"y 3' + z is 0
．． 1≦X: So, 85, 0.1≦y≦0.4, 0
．． By specifying 06≦2≦O,S, all dielectric ceramic compositions can be fired at 1QOo℃ or less, and when forming a multilayer capacitor, an inexpensive internal electrode material mainly made of silver can be used. . Furthermore, dielectric loss (tanδ)
is 0.1% or less and has a dielectric constant of 1000 or more.
発明の効果
以上述べてさたように１本発明による誘電体磁器組成物
を用いることにより、安価な内部電極材料を使用し、低
損失の積層コンデンサが得られるので、その工業的価値
は犬である。Effects of the Invention As described above, by using the dielectric ceramic composition according to the present invention, a low-loss multilayer capacitor can be obtained using inexpensive internal electrode materials, so its industrial value is unsurpassed. be.
図は本発明の一実施例における誘電体磁器組成物の効果
を説明するための組成図である。The figure is a composition diagram for explaining the effect of the dielectric ceramic composition in one embodiment of the present invention.
Claims (1)
＿１＿／＿３Ｎｂ＿２＿／＿３）＿ｙ（Ｍｇ＿１＿／＿
２Ｗ＿１＿／＿２）＿ｚＯ＿３（ただしｘ＋ｙ＋ｚ＝１
）で表わされる誘電体磁器組成物であって、ｘ、ｙ、ｚ
が各々０．１≦ｘ≦０．８５、０．１≦ｙ≦０．４、０
．０５≦ｚ≦０．５であることを特徴とする誘電体磁器
組成物。Pb(Zn_1_/_3Nb_2_/_3)_x(Ni
_1_/_3Nb_2_/_3)_y(Mg_1_/_
2W_1_/_2)_zO_3 (x+y+z=1
), in which x, y, z
are respectively 0.1≦x≦0.85, 0.1≦y≦0.4, 0
．． A dielectric ceramic composition characterized in that 05≦z≦0.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60028638A JPS61191555A (en) | 1985-02-15 | 1985-02-15 | Dielectric ceramic composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60028638A JPS61191555A (en) | 1985-02-15 | 1985-02-15 | Dielectric ceramic composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61191555A true JPS61191555A (en) | 1986-08-26 |
Family
ID=12254068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60028638A Pending JPS61191555A (en) | 1985-02-15 | 1985-02-15 | Dielectric ceramic composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61191555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9533561B2 (en) | 2009-12-17 | 2017-01-03 | Toyota Jidosha Kabushiki Kaisha | Power transmission device |
-
1985
- 1985-02-15 JP JP60028638A patent/JPS61191555A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9533561B2 (en) | 2009-12-17 | 2017-01-03 | Toyota Jidosha Kabushiki Kaisha | Power transmission device |
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