JPS6031793B2 - dielectric porcelain composition - Google Patents
dielectric porcelain compositionInfo
- Publication number
- JPS6031793B2 JPS6031793B2 JP56129516A JP12951681A JPS6031793B2 JP S6031793 B2 JPS6031793 B2 JP S6031793B2 JP 56129516 A JP56129516 A JP 56129516A JP 12951681 A JP12951681 A JP 12951681A JP S6031793 B2 JPS6031793 B2 JP S6031793B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- temperature
- dielectric constant
- dielectric
- composition
- 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.)
- Expired
Links
- 239000000203 mixture Substances 0.000 title claims description 18
- 229910052573 porcelain Inorganic materials 0.000 title description 7
- 239000000919 ceramic Substances 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- 230000007423 decrease Effects 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000003985 ceramic capacitor Substances 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910017682 MgTi Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Capacitors (AREA)
- Inorganic Insulating Materials (AREA)
Description
【発明の詳細な説明】
この発明は高譲露率系の譲霞体磁器組成物に関し、低温
蛭結が可能な磁器組成物を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-yellow yield type porcelain composition, and provides a porcelain composition that can be leech-set at a low temperature.
従来より高譲露率系の誘電体磁器組成物のうち、ＹＺ系
材料としては、ＢａＴｉｏ３一ＣａＺｒｏ３一ＭｇＴｉ
ｏ３系にＳｉｏ２などの錫化剤および酸化マンガンを添
加したものが知られていた。Among conventional high yield rate dielectric ceramic compositions, YZ-based materials include BaTio3-CaZro3-MgTi.
It has been known to add a tinning agent such as Sio2 and manganese oxide to the o3 system.
しかしながらこの種材料のものはその焼結温度が１３５
０〜１４００ｑｏの範囲にあり、焼結のための燃焼エネ
ルギーを低減下する必要上、さらに低温焼結が可能な新
規材料が要求されていた。一方、譲露体磁器を用いてセ
ラミックコンデンサを作成する場合、コンデンサ電極と
して無電解ニッケル電極を用いることが知られているが
、上記した組成の誘電体磁器を用いて無電鱗ニッケル電
極を形成すると、務軍体損失が大きく、また絶縁抵抗も
低くなるという問題点が見られた。したがって、この発
明は低温焼縞が可能な誘電体磁器組成物を提供すること
を目的とする。また、この発明はたとえば電極として無
電解ニッケル電極を形成しても電気的特性に問題のない
誘電体磁器組成物を提供することを目的とする。つまり
、この発明にかかる譲蚤体磁器組成物の要旨とするとこ
ろは、ＢａＴｉ０３８５〜９０重量％、ＣａＺｒｏ３８
．５〜１２．０重量％、ＭｇＴｉ０３０．５重量％以下
、Ｃｅ０２０．５重量％以下、Ｂｉ２０３０．１〜１．
０重量％、Ｓｎｏ２０．１〜１．の重量％からなること
を特徴とする。この発明においてその組成物の組成範囲
を限定した理由は次のとおりである。筋Ｔｉ０３が８５
重量％未満では誘電率温度特性が悪くなるとともに誘電
率が低下し、また９の重量％を越えると、一２５００に
おける誘電率温度特性が悪くなる。However, the sintering temperature of this type of material is 135
It is in the range of 0 to 1400 qo, and due to the need to reduce the combustion energy for sintering, a new material that can be sintered at a lower temperature has been required. On the other hand, when creating a ceramic capacitor using dielectric ceramic, it is known that an electroless nickel electrode is used as the capacitor electrode, but when an electroless nickel electrode is formed using dielectric ceramic with the above composition, However, there were problems such as large military losses and low insulation resistance. Therefore, an object of the present invention is to provide a dielectric ceramic composition capable of producing low-temperature burning fringes. Another object of the present invention is to provide a dielectric ceramic composition that does not cause problems in electrical characteristics even when an electroless nickel electrode is formed as an electrode. In other words, the gist of the concession porcelain composition according to the present invention is that BaTi0385 to 90% by weight, CaZro38
．． 5 to 12.0 wt%, MgTi030.5 wt% or less, Ce020.5 wt% or less, Bi2030.1 to 1.
0% by weight, Sno20.1-1. % by weight. The reason for limiting the composition range of the composition in this invention is as follows. Muscle Ti03 is 85
If it is less than 9% by weight, the dielectric constant-temperature characteristics will deteriorate and the dielectric constant will decrease, and if it exceeds 9% by weight, the dielectric constant-temperature characteristics at -2500 will deteriorate.
ＣａＺｒｏ３が８．５重量％未満では−２５ｑｏにおけ
る誘電率温度特性が悪くなり、また１２．の重量％を越
えると譲露率温度特性が悪くなるとともに誘電率が低下
する。ＭｇＴｉ０３は誘電率温度特性を改善する効果を
有するが、０．５重量％を越えると誘電率が極端に低下
する。ＣｅＣ２は誘電損失の改善に効果があるが、０．
５重量％を越えると凝結温度が上昇し、また誘電率も低
下する。Ｂｉ２０３が重量％未満では、競結温度の大幅
な低下が困難であり、また１．の重量％を越えると、誘
電率が極端に低下する。Ｓｎ０２が１．１重量％未満で
は、競結温度の大幅な低下が困難であり、また１．の重
量％を越えると、誘電率温度特性が悪くなるとともに誘
電率が低下する。以下この発明を実施例に従って詳細に
説明する。If CaZro3 is less than 8.5% by weight, the dielectric constant temperature characteristics at -25qo will deteriorate, and 12. If the weight percentage exceeds , the yield rate temperature characteristics deteriorate and the dielectric constant decreases. MgTi03 has the effect of improving dielectric constant temperature characteristics, but when it exceeds 0.5% by weight, the dielectric constant decreases extremely. CeC2 is effective in improving dielectric loss, but 0.
If it exceeds 5% by weight, the condensation temperature will increase and the dielectric constant will also decrease. If Bi203 is less than % by weight, it is difficult to significantly lower the competitive bonding temperature, and 1. If the weight percentage exceeds , the dielectric constant decreases extremely. If Sn02 is less than 1.1% by weight, it is difficult to significantly lower the competitive coalescence temperature, and 1. If the weight percentage exceeds , the dielectric constant-temperature characteristics deteriorate and the dielectric constant decreases. The present invention will be described in detail below according to examples.
原料として、ＢａＴｊ０３，ＣａＺｒ功，ＭｇＴｉ０３
．Ｃｅ０２，Ｂｉ２０３，ＳｎＱを用意し、各原料を第
１表に示す組成の磁器が得られるように調合した。As raw materials, BaTj03, CaZr, MgTi03
．． Ce02, Bi203, and SnQ were prepared, and the raw materials were mixed to obtain porcelain having the composition shown in Table 1.
調合原料をこの調合原料と同量の水とともにボールミル
中で湿式粉砕混合した。次いで混合原料を脱水、乾燥し
たのち、有機バインダを加えて造粒し、成形圧力１０′
００ｋ９／めで加圧成形した。成形物を１３００ｏｏの
温度で１時間空気中で暁結して、直径１４．０側０、厚
み０．５側の円板状の磁器素体を得た。得られた磁器素
体の再平面に無電鱗ニッケル電極を形成し、これを試料
とした。The blended raw material was wet-pulverized and mixed in a ball mill with the same amount of water as the blended raw material. Next, after dehydrating and drying the mixed raw materials, an organic binder is added and granulated, and the molding pressure is 10'.
Pressure molding was performed at 00k9/m. The molded product was sintered in air at a temperature of 1300 oo for 1 hour to obtain a disc-shaped porcelain body with a diameter of 14.0 mm and a thickness of 0.5 mm. Electroless scale nickel electrodes were formed on the resurfaced surface of the obtained porcelain body, and this was used as a sample.
試料の譲電率（ご）、誘電損失（ｔａｎ８）、譲亀率温
度特性＊（ＴＣ）、および絶縁抵抗（ＩＲ）を測定し、
その結果も第１表に合わせて示した。なお、誘電率、誘
電損失は周波数ＩＫ比、温度２０℃で測定した値である
。また誘電率温度特性は十２０ｏｏを基準として−２５
ｏｏ〜＋８５ｑＣの温度範囲で測定した値である。さら
に絶縁抵抗は直流電圧５００Ｖを４の彰間印加したのち
測定した値である。また表中、※印を付したものはこの
発明範囲外のものであり、それ以外は発明範囲内のもの
である。第１表
第１表から明らかなように、この発明にかかる誘電体磁
器組成物によれば、高誘電率を維持しながら、ｔａｎ６
は１％以下、ＩＲが４．０×１び。Measure the yield rate (g), dielectric loss (tan8), yield rate temperature characteristic* (TC), and insulation resistance (IR) of the sample,
The results are also shown in Table 1. Note that the dielectric constant and dielectric loss are values measured at a frequency IK ratio and a temperature of 20°C. In addition, the dielectric constant temperature characteristic is -25 with reference to 120 oo
This is a value measured in a temperature range of oo to +85qC. Furthermore, the insulation resistance is a value measured after applying a DC voltage of 500 V for 4 hours. Furthermore, in the table, those marked with * are outside the scope of this invention, and the others are within the scope of the invention. Table 1 As is clear from Table 1, according to the dielectric ceramic composition according to the present invention, while maintaining a high dielectric constant, tan6
is less than 1%, and IR is 4.0×1.
０以上の特性が得られており、またＴＣについてはＪＩ
Ｓ規格のＥ特性（２０℃を基準としたとき温度範囲−２
５℃〜十８５ｑｏで変化率が十２０％〜一５５％以下の
もの）を満足するものも得られている。Characteristics of 0 or more have been obtained, and for TC, JI
E characteristics of S standard (temperature range -2 when 20℃ is standard)
Some products have been obtained that satisfy the following criteria: 120% to 155% or less change rate at 5° C. to 185 qo.
ちなみに、従来の組成物（ＢａＴｉ０３８８．８重量％
，ＣａＺｒｏ３１０．既重量％，ＭｇＴｉ０３０．３の
重量％）について、上記した実施例と同機にしてコンデ
ンサ試料を作成したとき、その各電気的特性を測定した
ところ、次のとおりであった。By the way, the conventional composition (BaTi0388.8% by weight
, CaZro310. When a capacitor sample was prepared using the same machine as the above-mentioned example, its electrical characteristics were measured as follows.
なお、焼結温度は１４００００であった。誘電率：６５
００
誘電損失：１．５３％
誘電率温度特性：−２５００−４５．４％十８５００一
５２．５％
絶縁抵抗：１．５×１び。Note that the sintering temperature was 140,000. Dielectric constant: 65
00 Dielectric loss: 1.53% Dielectric constant temperature characteristics: -2500 - 45.4% - 8500 - 52.5% Insulation resistance: 1.5 x 1.
（１従来組成物との比較から明らかなように、コンデン
サ電極として無電解ニッケル電極を形成した場合、この
発明にかかるものは議電損失が小さくなり、絶縁抵抗に
ついては約３倍程度改善されていることが理解できる。(1) As is clear from the comparison with the conventional composition, when an electroless nickel electrode is formed as a capacitor electrode, the electrolytic loss is reduced in the composition according to the present invention, and the insulation resistance is improved by about 3 times. I can understand that there are.
以上この発明にかかる誘電体磁器組成物によれば、従来
例にくらべて約１０００○程度焼給温度を下げることが
でき、低温焼結が可能となる。As described above, according to the dielectric ceramic composition according to the present invention, the firing temperature can be lowered by about 1000° compared to the conventional example, and low-temperature sintering becomes possible.
また、コンデンサ電極として無電解ニッケル電極を形成
しても電気的特性の劣化が見られず、安定した電気的特
性を有するセラミックコンデンサを提供することができ
る。なお、この発明にかかる誘電体磁器組成物にさらに
Ｓｉ０２，Ｍｍ０２などを添加すれば磁器化を容易にす
ることができる。Further, even when an electroless nickel electrode is formed as a capacitor electrode, no deterioration in electrical characteristics is observed, and a ceramic capacitor having stable electrical characteristics can be provided. Incidentally, if Si02, Mm02, etc. are further added to the dielectric ceramic composition according to the present invention, it can be easily made into a ceramic.
Claims (1)
８．５〜１２．０重量％、ＭｇＴｉＯ＿３０．５重量％
以下、ＣｅＯ＿２０．５重量％以下、Ｂｉ＿２Ｏ＿３０
．１〜１．０重量％、Ｓｎｏ＿２０．１〜１．０重量％
からなることを特徴とする誘電体磁器組成物。1 BaTiO_385-90% by weight, CaZro_3
8.5-12.0% by weight, MgTiO_30.5% by weight
Below, CeO_20.5% by weight or less, Bi_2O_30
．． 1-1.0% by weight, Sno_20.1-1.0% by weight
A dielectric ceramic composition comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56129516A JPS6031793B2 (en) | 1981-08-18 | 1981-08-18 | dielectric porcelain composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56129516A JPS6031793B2 (en) | 1981-08-18 | 1981-08-18 | dielectric porcelain composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5832068A JPS5832068A (en) | 1983-02-24 |
| JPS6031793B2 true JPS6031793B2 (en) | 1985-07-24 |
Family
ID=15011425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56129516A Expired JPS6031793B2 (en) | 1981-08-18 | 1981-08-18 | dielectric porcelain composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6031793B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030017860A (en) * | 2001-08-23 | 2003-03-04 | 주식회사 케이이씨 | Dielectric composition for ceramic condenser and manufacturing method thereof |
| JP4201242B2 (en) * | 2002-03-26 | 2008-12-24 | Ｔｄｋ株式会社 | High dielectric constant dielectric ceramic composition |
-
1981
- 1981-08-18 JP JP56129516A patent/JPS6031793B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5832068A (en) | 1983-02-24 |
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