JP4780272B2 - 複合導電性粒子粉末、該複合導電性粒子粉末を含む導電性塗料並びに積層セラミックコンデンサ - Google Patents
複合導電性粒子粉末、該複合導電性粒子粉末を含む導電性塗料並びに積層セラミックコンデンサ Download PDFInfo
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- 239000000843 powder Substances 0.000 title claims description 94
- 239000002131 composite material Substances 0.000 title claims description 59
- 239000003985 ceramic capacitor Substances 0.000 title claims description 38
- 239000003973 paint Substances 0.000 title claims description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 94
- 229910052759 nickel Inorganic materials 0.000 claims description 43
- 239000000919 ceramic Substances 0.000 claims description 32
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- 229910052788 barium Inorganic materials 0.000 claims description 5
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- 229910052749 magnesium Inorganic materials 0.000 claims description 4
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- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 9
- 229910002113 barium titanate Inorganic materials 0.000 description 9
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- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
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- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000005456 alcohol based solvent Substances 0.000 description 2
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- -1 but in recent years Substances 0.000 description 2
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- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 2
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- 150000002815 nickel Chemical class 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
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- 230000007847 structural defect Effects 0.000 description 2
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 2
- ZWVMLYRJXORSEP-UHFFFAOYSA-N 1,2,6-Hexanetriol Chemical compound OCCCCC(O)CO ZWVMLYRJXORSEP-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- YEYKMVJDLWJFOA-UHFFFAOYSA-N 2-propoxyethanol Chemical compound CCCOCCO YEYKMVJDLWJFOA-UHFFFAOYSA-N 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- FIPWRIJSWJWJAI-UHFFFAOYSA-N Butyl carbitol 6-propylpiperonyl ether Chemical compound C1=C(CCC)C(COCCOCCOCCCC)=CC2=C1OCO2 FIPWRIJSWJWJAI-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- CPUJSIVIXCTVEI-UHFFFAOYSA-N barium(2+);propan-2-olate Chemical compound [Ba+2].CC(C)[O-].CC(C)[O-] CPUJSIVIXCTVEI-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 239000004210 ether based solvent Substances 0.000 description 1
- HHFAWKCIHAUFRX-UHFFFAOYSA-N ethoxide Chemical compound CC[O-] HHFAWKCIHAUFRX-UHFFFAOYSA-N 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- NBTOZLQBSIZIKS-UHFFFAOYSA-N methoxide Chemical compound [O-]C NBTOZLQBSIZIKS-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000002816 nickel compounds Chemical class 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 description 1
- 229960005235 piperonyl butoxide Drugs 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
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- 238000003825 pressing Methods 0.000 description 1
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- IKNCGYCHMGNBCP-UHFFFAOYSA-N propan-1-olate Chemical compound CCC[O-] IKNCGYCHMGNBCP-UHFFFAOYSA-N 0.000 description 1
- OGHBATFHNDZKSO-UHFFFAOYSA-N propan-2-olate Chemical compound CC(C)[O-] OGHBATFHNDZKSO-UHFFFAOYSA-N 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
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- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
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- 238000004876 x-ray fluorescence Methods 0.000 description 1
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- Conductive Materials (AREA)
- Non-Insulated Conductors (AREA)
- Powder Metallurgy (AREA)
- Ceramic Capacitors (AREA)
Description
本発明において最も重要な点は、ニッケル粒子の粒子表面に誘電体物質が付着もしくは被覆しているしている複合導電性粒子粉末は、内部電極材料としての電気特性を維持しつつ、熱収縮特性及び耐酸化性に優れると共に、導電性塗料中における分散性に優れているという事実である。
ニッケル粒子粉末(被処理粒子1 粒子形状:球状、平均粒子径:0.22μm、BET比表面積値:3.3m2/g、熱収縮開始温度:405℃、酸化開始温度:360℃、流動性指数:40)500gを、アセトン500mlに攪拌機を用いて邂逅し、ニッケル粒子粉末を含むアセトンのスラリーを得た。
前記複合導電性粒子粉末100重量部、ターピネオール115重量部及びエチルセルロースのターピネオール溶液(エチルセルロースの含有量:20重量%)100重量部とを混合し、3本ロールミルを用いて混合分散させ、導電性塗料を得た。
誘電体(種類:BaTiO3、粒子形状:粒状、平均粒子径:30nm、BET比表面積値:31.5m2/g)を用いて従来法で作製したセラミックスラリーをシート状に形成し、厚さ約2.8μmのセラミックグリーンシートを得た。次いで、セラミックグリーンシート上に前記導電性塗料をスクリーン印刷によって印刷し、内部電極層を形成した。次いで、該内部電極層が形成されたセラミックグリーンシートを複数枚積層し、熱プレスして一体化したものを還元雰囲気下、1300℃で2時間焼成した後、外部電極を焼付けることによって積層セラミックコンデンサを得た。
被処理粒子粉末として表1に示す特性を有するニッケル粒子粉末を用意した。
被処理粒子粉末の種類、表面処理工程における有機溶剤の種類、表面処理剤の種類及び添加量を種々変化させた以外は、前記実施例1−1と同様にして複合導電性粒子粉末を得た。
ニッケル粒子粉末(粒子形状:球状、平均粒子径:0.22μm、BET比表面積値:3.3m2/g、熱収縮開始温度:405℃、酸化開始温度:360℃、流動性指数:40)100gを純水1L中に加えて攪拌し、スラリー化した。30分攪拌した後、過酸化水素水100gを一括添加し、反応が終了し泡が出なくなった時点で攪拌を停止し、濾過、乾燥し、表面酸化処理ニッケル微粉末を得た。
実施例3−2〜3−6、比較例3〜7:
導電性粒子粉末の種類を種々変化させた以外は、前記実施例3−1の積層セラミックコンデンサの製造と同様にして積層を得た。
Claims (6)
- ニッケル粒子の粒子表面に誘電体物質が被覆されている複合粒子粉末であって、該複合粒子粉末の流動性が55以上である複合導電性粒子粉末であり、当該複合導電性粒子粉末はニッケル粒子粉末を有機溶剤に分散した懸濁液中に金属アルコキシドの溶液を加えた後、風乾後、60〜120℃で乾燥させ得られることを特徴とする複合導電性粒子粉末。
- 誘電体物質が強誘電体であることを特徴とする請求項1記載の複合導電性粒子粉末。
- ニッケル粒子の粒子表面に誘電体物質が被覆されている複合粒子粉末の製造法であって、ニッケル粒子粉末を有機溶剤に分散した懸濁液中に金属アルコキシドの溶液を加えた後、風乾後、60〜120℃で乾燥させて流動性が55以上である複合粒子粉末を得ることを特徴とする複合導電性粒子粉末の製造法。
- Ti、Zr、Ba、Sr、Mg、及びCaから選ばれる少なくとも1種以上を含む金属アルコキシドを用いることを特徴とする請求項3記載の複合導電性粒子粉末の製造法。
- 少なくとも導電性粒子粉末と樹脂とを含有する導電性塗料において、前記導電性粒子粉末が請求項1又は請求項2記載の複合導電性粒子粉末であることを特徴とする導電性塗料。
- セラミック誘電体層と内部電極層とが交互に積層された構造を有する積層セラミックコンデンサにおいて、内部電極層に請求項1又は請求項2記載の複合導電性粒子粉末を含有することを特徴とする積層セラミックコンデンサ。
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JP3475749B2 (ja) * | 1997-10-17 | 2003-12-08 | 昭栄化学工業株式会社 | ニッケル粉末及びその製造方法 |
JP2000232032A (ja) * | 1999-02-10 | 2000-08-22 | Tdk Corp | 電極形成用ニッケル複合導体及び積層セラミックコンデンサ |
JP3203238B2 (ja) * | 1999-11-01 | 2001-08-27 | 三井金属鉱業株式会社 | 複合ニッケル微粉末 |
JP3474170B2 (ja) * | 2000-01-14 | 2003-12-08 | 三井金属鉱業株式会社 | ニッケル粉及び導電ペースト |
JP4070397B2 (ja) * | 2000-04-11 | 2008-04-02 | Jfeミネラル株式会社 | ニッケル超微粉及びその製造方法 |
JP3452034B2 (ja) * | 2000-07-05 | 2003-09-29 | 株式会社村田製作所 | 導電性ペーストおよび積層セラミック電子部品 |
JP4492785B2 (ja) * | 2004-01-28 | 2010-06-30 | 戸田工業株式会社 | 複合導電性粒子粉末、該複合導電性粒子粉末を含む導電性塗料並びに積層セラミックコンデンサ |
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