JP4438390B2 - ペロブスカイト型酸化物磁器の製造方法 - Google Patents
ペロブスカイト型酸化物磁器の製造方法 Download PDFInfo
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- JP4438390B2 JP4438390B2 JP2003387036A JP2003387036A JP4438390B2 JP 4438390 B2 JP4438390 B2 JP 4438390B2 JP 2003387036 A JP2003387036 A JP 2003387036A JP 2003387036 A JP2003387036 A JP 2003387036A JP 4438390 B2 JP4438390 B2 JP 4438390B2
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- Prior art keywords
- oxide
- perovskite
- ceramic
- powder
- lead
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- 229910052573 porcelain Inorganic materials 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000000843 powder Substances 0.000 claims description 34
- 238000003786 synthesis reaction Methods 0.000 claims description 24
- 230000015572 biosynthetic process Effects 0.000 claims description 22
- 229910052574 oxide ceramic Inorganic materials 0.000 claims description 21
- 239000011224 oxide ceramic Substances 0.000 claims description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000001301 oxygen Substances 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 18
- 239000000919 ceramic Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 239000011812 mixed powder Substances 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 12
- 238000010304 firing Methods 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 10
- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims description 8
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 8
- XMFOQHDPRMAJNU-UHFFFAOYSA-N lead(ii,iv) oxide Chemical compound O1[Pb]O[Pb]11O[Pb]O1 XMFOQHDPRMAJNU-UHFFFAOYSA-N 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 2
- 229910000464 lead oxide Inorganic materials 0.000 claims description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 2
- 239000010936 titanium Substances 0.000 description 12
- 229910052719 titanium Inorganic materials 0.000 description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 description 5
- 229910000003 Lead carbonate Inorganic materials 0.000 description 5
- 238000005452 bending Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000012776 electronic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005621 ferroelectricity Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- 229910003455 mixed metal oxide Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Description
また、炭酸鉛を使用した場合と比較して、四酸化三鉛を使用して、低酸素分圧で合成した場合の方が、機械的強度や絶縁性などの信頼性が向上した理由としては、上述の焼結粒径の微粒化効果以外にも、鉛を含有するペロブスカイト型酸化物に特有の以下のような効果作用が考えられる。反応のメカニズムは明確でないが、炭酸鉛を用いて低酸素分圧で合成した場合、四酸化三鉛と比較して、PbOの反応性が低下しているものと推測される。反応性が低下する要因としては、炭酸鉛が分解する際に発生する二酸化炭素が何らかの悪影響を及ぼすものと推測されるが定かではない。
鉛およびチタンを含有するペロブスカイト型酸化物では元来、焼結後の粒界の未反応PbOにより、機械的強度が劣化したり、絶縁性が悪化するという問題があったが、本発明では、上記のように四酸化三鉛および酸化チタンを含む複数の酸化物粉末を混合して得られた混合粉末を低酸素分圧下で合成することにより、合成反応が促進されるため、PbOの固溶反応が促進し、その結果として焼結後の粒界のPbO量が減少して、磁器の機械的強度の向上や、絶縁性などの信頼性が向上するという作用効果が得られたと考えられる。
Claims (3)
- 四酸化三鉛および酸化チタンを含む酸化物の原料粉末を用意し、前記各原料粉末を混合して得られる混合粉末を、酸素分圧が5×103(但し、0を除く)Pa以下の雰囲気下で熱処理合成して、合成物粉末を得る工程と、前記合成物粉末を成形、焼成する工程と、を備え、最終生成物として、酸化鉛を含有するペロブスカイト型酸化物磁器が得られることを特徴とする、ペロブスカイト型酸化物磁器の製造方法。
- 前記ペロブスカイト型酸化物磁器が、チタン酸鉛系磁器またはチタン酸ジルコン酸鉛系磁器のいずれかであることを特徴とする、請求項1に記載のペロブスカイト型酸化物磁器の製造方法。
- 前記四酸化三鉛および酸化チタンを含む酸化物の原料粉末を混合して得られる前記混合粉末の比表面積が6m2/g以上であることを特徴とする、請求項1ないし2に記載のペロブスカイト型酸化物磁器の製造方法。
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JP2003387036A JP4438390B2 (ja) | 2003-11-17 | 2003-11-17 | ペロブスカイト型酸化物磁器の製造方法 |
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JP2005145770A JP2005145770A (ja) | 2005-06-09 |
JP4438390B2 true JP4438390B2 (ja) | 2010-03-24 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5206673B2 (ja) * | 2007-05-14 | 2013-06-12 | 株式会社村田製作所 | 圧電磁器組成物、及び圧電部品 |
KR102022938B1 (ko) * | 2017-11-27 | 2019-09-19 | 창원대학교 산학협력단 | Ba 자리 Sr 및 Mo 자리 W 동시 치환에 의한 향상된 자기열량 효과를 가지는 이중 페로브스카이트 구조 산화물 |
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