KR20140100512A - 압전 배향 세라믹스 및 그 제조방법 - Google Patents
압전 배향 세라믹스 및 그 제조방법 Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 150000001875 compounds Chemical class 0.000 claims abstract description 31
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000002441 X-ray diffraction Methods 0.000 claims abstract description 17
- 239000013078 crystal Substances 0.000 claims description 37
- 238000005245 sintering Methods 0.000 claims description 32
- 239000002245 particle Substances 0.000 claims description 18
- 238000010304 firing Methods 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 2
- 239000000523 sample Substances 0.000 description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910010413 TiO 2 Inorganic materials 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000013074 reference sample Substances 0.000 description 3
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000007088 Archimedes method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 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 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
Description
도 2는 압전 배향 세라믹스의 소성공정에 있어서, 소성온도를 변화시켜서 3시간 유지한 조건에서 소성한 압전 배향 세라믹스의 소결체의 각 소성온도에 대응하는 소결 밀도를 나타내는 도면이다.
도 3은 각 소성온도에 대해서 얻어진 압전 배향 세라믹스의 소결체의 비저항ρ를 나타내는 도면이다.
도 4는 압전 배향 세라믹스의 소결체의 소정 단면에서의 XRD차트이고, (a)는 시료 1의 XRD차트이며, (b)는 시료 2의 XRD차트이고, (c)는 시료 3의 XRD차트이다.
Claims (3)
- 페로브스카이트 구조를 가지는 Pb(Ti,Zr)O3계 화합물을 주성분으로 하는 압전 배향 세라믹스로서,
상기 압전 배향 세라믹스는,
상기 압전 배향 세라믹스의 소정 단면에서의 X선 회절 패턴에 기초하여, 로트게링(Lotgering)법으로 산출한 배향도가 0.64 이상이면서, 소결 밀도가 이론 밀도의 85% 이상인 것을 특징으로 하는 압전 배향 세라믹스. - 제1항에 있어서,
상기 압전 배향 세라믹스를 구성하는 입자는 구(球)형상인 것을 특징으로 하는 압전 배향 세라믹스. - 압전 배향 세라믹스의 소정 단면에서의 X선 회절 패턴에 기초하여, 로트게링(Lotgering)법으로 산출한 배향도가 0.64 이상인 압전 배향 세라믹스의 제조방법으로서,
상기 압전 배향 세라믹스의 제조방법은,
페로브스카이트 구조를 가지는 Pb(Ti,Zr)O3계 화합물을 포함하는 단결정 분말을 준비하는 공정과,
분산상(分散相)으로서, 상기 단결정 분말을 포함하는 슬러리를 제작하는 공정과,
상기 슬러리를 자장(磁場)중에서 성형함으로써 성형체를 얻는 공정과,
상기 성형체를 소성하는 공정을 포함하고,
상기성형체를 소성하는 공정은,
소성온도의 유지시간이 3시간인 조건에서 소성한 경우에, 소결 밀도가 이론 밀도의 85% 이상이 되는 소성온도 중, 가장 낮은 소성온도보다도 100℃ 이상 낮은 온도에서 24시간 이상 유지하여 소성하는 것을 특징으로 하는 압전 배향 세라믹스의 제조방법.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011271623 | 2011-12-12 | ||
| JPJP-P-2011-271623 | 2011-12-12 | ||
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| JPH0624840A (ja) * | 1992-07-03 | 1994-02-01 | Ube Ind Ltd | 針状plzt粒子およびその製造方法 |
| US5502345A (en) * | 1994-08-29 | 1996-03-26 | The United States Of America As Represented By The Secretary Of The Navy | Unitary transducer with variable resistivity |
| KR200160543Y1 (ko) * | 1997-02-05 | 1999-11-15 | 이향재 | 철선이 내장된 맨홀용 방수관 |
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| KR100358053B1 (ko) * | 1999-12-27 | 2002-10-25 | 주식회사 하이닉스반도체 | 압전 세라믹스 제조방법 |
| JP4949668B2 (ja) * | 2004-12-09 | 2012-06-13 | 富士フイルム株式会社 | セラミックス膜の製造方法及びセラミックス膜を含む構造物 |
| US20080248277A1 (en) * | 2007-02-26 | 2008-10-09 | Ngk Insulators, Ltd. | Ceramic sheet, method for producing the same, and method for producing crystallographically-oriented ceramic |
| JP2010090021A (ja) | 2008-10-10 | 2010-04-22 | Murata Mfg Co Ltd | ペロブスカイト構造化合物の焼結体の製造方法 |
| EP2443679A4 (en) * | 2009-06-19 | 2013-10-09 | Sonavation Inc | PROCESS FOR PRODUCING PIEZOELECTRIC CERAMIC BODY |
| JP5615590B2 (ja) * | 2009-07-16 | 2014-10-29 | 日本碍子株式会社 | 結晶配向セラミックスの製造方法 |
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| EP2792657A1 (en) | 2014-10-22 |
| US9647198B2 (en) | 2017-05-09 |
| CN103958438B (zh) | 2015-09-16 |
| KR101608447B1 (ko) | 2016-04-01 |
| WO2013088925A1 (ja) | 2013-06-20 |
| EP2792657A4 (en) | 2015-08-12 |
| JP5799336B2 (ja) | 2015-10-21 |
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