KR100537137B1 - 강유전체 세라믹 단결정 및 그 제조 방법 - Google Patents
강유전체 세라믹 단결정 및 그 제조 방법 Download PDFInfo
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- KR100537137B1 KR100537137B1 KR10-2003-0047458A KR20030047458A KR100537137B1 KR 100537137 B1 KR100537137 B1 KR 100537137B1 KR 20030047458 A KR20030047458 A KR 20030047458A KR 100537137 B1 KR100537137 B1 KR 100537137B1
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Abstract
Description
| 반응원료 | x[P]0.55<x<0.65x: molx+y+z+p=1 | [L]반응단계(1단계반응) | 조성식 | ||||
| y[M]0.12<y<0.20y:mol | z[N]0.12<z<0.20z:mol | p[T]0.01<p<0.20p:mol | s[L]0.01<s<0.1n: mol/mol=s/(x+y+z+p) | ||||
| [P]:Pb2O3 또는PbO | [M]:MgO또는ZnO | [C]:Nb2O5 | [P]:TiO2 | [N]:NiOLiTaO3 LiNbO3 Li2CO3 PtAgAuPdRh,InOCoFe2O3 ScOSrORuO2 CuOYbO,Yb2CO3 | s[L]-x[P]y[M]z[N]p[T] | ||
| 실시예 | 1 | PbO0.564몰 | MgO0.127몰 | 0.127몰 | 0.180몰 | 0.01mol%Pt +0.03Li2CO3 | L-PMNT |
| 2 | PbO0.564몰 | MgO0.127몰 | 0.127몰 | 0.180몰 | 0.01mol%Pt + 0.03InO | I-PMNT | |
| 3 | PbO0.564몰 | MgO0.127몰 | 0.127몰 | 0.180몰 | 0.01mol%Pt + 0.03Y | Y-PMNT | |
| 4 | PbO0.564몰 | MgO0.127몰 | 0.127몰 | 0.180몰 | 0.01mol%Pt + 0.03Yb | Yb-PMNT | |
| L-PMNT: 0.01[Pt]0.03[Li2CO3]-0.56[PbO]0.13[PbTiO3]0.13[PbTiO3]0.18[PbTiO3]I-PMNT: 0.01[Pt]0.03[InO]-0.56[PbO]0.13[PbTiO3]0.13[PbTiO3]0.18[PbTiO3]Y-PMNT: 0.01[Pt]0.03[YbO]-0.56[PbO]0.13[PbTiO3]0.13[PbTiO3]0.18[PbTiO3]Yb-PMNT:0.01[Pt]0.03[Yb2CO3]-0.56[PbO]0.13[PbTiO3]0.13[PbTiO3]0.18[PbTiO3] | |||||||
| PZT-5A | PZT-5H | PMN-PT단결정 | PZN-PT 단결정 | L-PMNT단결정(실시예 1) | |
| 유전상수 | 1700 | 3400 | 5500 | 5000 | 7000 |
| 손실압전상수 | 0.02 | 0.02 | 0.006 | 0.014 | 0.005 |
| d33(pC/N) | 374 | 593 | 2200 | 2000 | 2500 |
| d31(pC/N) | 200 | 1000 | |||
| d15(pC/N) | 300 | 7000 | |||
| k33 | 0.705 | 0.75 | 0.92 | 0.91 | 0.95 |
| 상전이온도 | 145℃ | 150℃ | 190℃ |
Claims (18)
- 삭제
- 하기 화학식 1의 조성을 갖는 강유전체 세라믹 화합물로부터 제조되는 강유전체 세라믹 단결정.s[L]-x[P]y[M]z[N]p[T] (화학식 1)상기 식에서,[P]는 산화 납[PbO,PbO2,Pb3O4]이고,[M]은 산화마그네슘[MgO]이고,[N]은 나이오비움 옥사이드[Nb2O5]이고,[T]는 산화 티탄[TiO2]이고,[L]은 리튬 탄탈레이트[LiTaO3], 리튬 나이오베이트[LiNbO3], 리튬 또는 리튬산화물[Li2CO3],백금, 금, 은, 팔라디움, 로디움,인디움 니켈, 코발트, 철, 스트론티움, 스칸디움, 루쎄니움, 구리, 이트리움,이터비움으로 이루어진 군 중에서 선택된 하나의 금속 또는 그의 산화물이고,x는 0.55 보다 크고 0.60 보다 작은 수이고,y는 0.09 보다 크고 0.20 보다 작은 수이고,z는 0.09 보다 크고 0.20 보다 작은 수이고,상기 p는 0.01 보다 크고 0.27 보다 작은 수이고,s는 0.01 보다 크고 0.1 보다 작은 수이다.
- 제 2 항에 있어서,상기 단결정의 직경이 5cm 내지 30cm인 것을 특징으로 하는 강유전체 세라믹 단결정.
- 제 2 항 또는 제 3 항에 있어서,상기 단결정의 실온 유전 상수가 6000 내지 15000인 것을 특징으로 하는 강유전체 세라믹 단결정.
- 산화마그네슘[MgO] 또는 산화아연[ZnO]중 한 성분, 산화나이오비움 [Nb2O5] 및 이산화티탄[TiO2]을 각각 0.09 내지 0.20 몰, 0.09 내지 0.20 몰 및 0.01 내지 0.27 몰 범위의 양으로 혼합하는 제1단계;상기 제1단계에서 생성된 혼합물의 반응을 원할히 하거나 물성을 제어하기 위해 첨가제를 가한 후 고온 반응시키는 제2단계;상기 제2단계에서 수득된 화합물에, [PbxOy]의 화학식을 갖는 산화납 중에서 선택된 한가지를 0.55 내지 0.65몰 혼합하고, 건조시킨 후 소성시킨 다음 분말로 분쇄하는 제3단계를 포함하여 이루어지는 것을 특징으로 하는 상기 화학식 1의 조성을 갖는 강유전체 세라믹 화합물의 제조 방법.
- 제5항에 있어서,상기 제2단계에서 가해지는 상기 첨가제는, 리튬탄탈레이트[LiTaO3], 리튬나이오베이트[LiNbO3], 리튬 또는 리튬카보네이트[Li2CO3], 백금(Pt), 금(Au), 은(Ag), 팔라디움(Pd), 로디움(Rh), 인디움(In), 니켈(Ni), 코발트(Co), 철(Fe), 스트론티움(Sr), 스칸디움(Sc), 루쎄니움(Ru), 구리(Cu), 이트리움(Y) 및 이터비움(Yb)으로 이루어진 군 중에서 선택된 적어도 하나 이상의 금속 또는 그 산화물인 것을 특징으로 하는 강유전체 세라믹 화합물의 제조 방법.
- 제5항 또는 제6항에 있어서,상기 제2단계에서의 고온반응은, 1100℃ 내지 2000℃ 사이의 온도에서 이루어지는 것을 특징으로 하는 강유전체 세라믹 화합물의 제조 방법.
- 제5항 또는 제6항에 있어서,상기 제3단계의 혼합은, 건식상태로 분쇄 혼합하거나 유기용매를 사용한 분산 매질을 사용하여 혼합하는 것을 특징으로 하는 강유전체 세라믹 화합물의 제조 방법.
- 제5항 또는 제6항에 있어서,상기 제3단계의 소성은, 800℃ 내지 1000℃ 사이에서 행하여지는 것을 특징으로 하는 강유전체 세라믹 화합물의 제조 방법.
- 산화마그네슘[MgO] 또는 산화아연[ZnO]중 한 성분, 산화나이오비움 [Nb2O5] 및 이산화티탄[TiO2]을 각각 0.09 내지 0.20 몰, 0.09 내지 0.20 몰 및 0.01 내지 0.27 몰 범위의 양으로 혼합하는 제1단계;상기 제1단계에서 생성된 혼합물의 반응을 원할히 하거나 물성을 제어하기 위해 첨가제를 가한 후 고온 반응시키는 제2단계;상기 제2단계에서 수득된 화합물에, [PbxOy]의 화학식을 갖는 산화납 중에서 선택된 한가지를 0.55 내지 0.65몰 혼합하고, 건조시킨 후 소성시킨 다음 분말로 분쇄하는 제3단계;상기 제3단계에서 수득된 분말을 고온 고압 하에서 용융시킨 다음 서냉하여 결정화하는 제4단계를 포함하여 이루어지는 것을 특징으로 하는 단결정 제조 방법.
- 제10항에 있어서,상기 제2단계에서 가해지는 상기 첨가제는, 리튬탄탈레이트[LiTaO3], 리튬나이오베이트[LiNbO3], 리튬 또는 리튬카보네이트[Li2CO3], 백금(Pt), 금(Au), 은(Ag), 팔라디움(Pd), 로디움(Rh), 인디움(In), 니켈(Ni), 코발트(Co), 철(Fe), 스트론티움(Sr), 스칸디움(Sc), 루쎄니움(Ru), 구리(Cu), 이트리움(Y) 및 이터비움(Yb)으로 이루어진 군 중에서 선택된 적어도 하나 이상의 금속 또는 그 산화물인 것을 특징으로 하는 단결정 제조 방법.
- 제10항 또는 제11항에 있어서,상기 제2단계에서의 고온반응은, 1100℃ 내지 2000℃ 사이의 온도에서 이루어지는 것을 특징으로 하는 단결정 제조 방법.
- 제10항 또는 제11항에 있어서,상기 제3단계의 혼합은, 건식상태로 분쇄 혼합하거나 유기용매를 사용한 분산 매질을 사용하여 혼합하는 것을 특징으로 하는 단결정 제조 방법.
- 제10항 또는 제11항에 있어서,상기 제3단계의 소성은, 800℃ 내지 1000℃ 사이에서 행하여지는 것을 특징으로 하는 단결정 제조 방법.
- 제10항에 있어서,상기 제4단계의 고온 고압 하에서의 용융은, 상기 제3단계에서 수득된 분말을 고온 고압하의 도가니에 주입한 후 도가니를 밀폐시키고 용융시키는 것을 특징으로 하는 단결정 제조방법.
- 제10항에 있어서,상기 제4단계는, 상기 제3단계에서 수득된 분말을 고온 고압이 가능한 도가니에 주입한 후 도가니를 밀폐시키고 1200℃ 내지 1500℃의 온도와 20 내지 1000 psi의 압력 하에 용융시킨 다음 360 내지 500시간 동안 온도를 유지한 후 서서히 실온으로 냉각시키는 것을 특징으로 하는 단결정 제조방법.
- 제15항 또는 제16항에 있어서,상기 도가니는 백금 또는 백금-로디움 합금 또는 이리듐 소재의 도가니인 것을 특징으로 하는 단결정 제조방법.
- 제17항에 있어서,상기 도가니는 내부 직경이 5cm 내지 30cm 인 것을 특징으로 하는 단결정 제조방법.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0047458A KR100537137B1 (ko) | 2003-07-11 | 2003-07-11 | 강유전체 세라믹 단결정 및 그 제조 방법 |
| AU2003257707A AU2003257707A1 (en) | 2003-07-11 | 2003-07-30 | A ferroelectric ceramic compound, a ferroelectric ceramic single crystal, and preparation processes thereof |
| PCT/KR2003/001528 WO2005005320A1 (en) | 2003-07-11 | 2003-07-30 | A ferroelectric ceramic compound, a ferroelectric ceramic single crystal, and preparation processes thereof |
| JP2005503880A JP4405467B2 (ja) | 2003-07-11 | 2003-07-30 | 強誘電体セラミック化合物の製造方法および強誘電体単結晶の製造方法 |
| CNB038260980A CN100354229C (zh) | 2003-07-11 | 2003-07-30 | 铁电陶瓷合成物,铁电陶瓷单晶及其制备方法 |
| US10/551,355 US7527690B2 (en) | 2003-07-11 | 2003-07-30 | Ferroelectric ceramic compound, a ferroelectric ceramic single crystal, and preparation processes thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0047458A KR100537137B1 (ko) | 2003-07-11 | 2003-07-11 | 강유전체 세라믹 단결정 및 그 제조 방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20050007857A KR20050007857A (ko) | 2005-01-21 |
| KR100537137B1 true KR100537137B1 (ko) | 2005-12-16 |
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| JP (1) | JP4405467B2 (ko) |
| KR (1) | KR100537137B1 (ko) |
| CN (1) | CN100354229C (ko) |
| AU (1) | AU2003257707A1 (ko) |
| WO (1) | WO2005005320A1 (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090064476A1 (en) * | 2007-07-27 | 2009-03-12 | The Penn State Research Foundation | Piezoelectric materials based on flexoelectric charge separation and their fabrication |
| CN105308496A (zh) * | 2012-04-04 | 2016-02-03 | P·韩 | 电光单晶元件、该元件的制造方法以及使用该元件的系统 |
| CN103346253B (zh) * | 2013-06-08 | 2015-01-21 | 西安交通大学 | 铁电单晶/环氧2-2结构及应力板加固的2-2结构复合材料 |
| CN104372409B (zh) * | 2013-08-14 | 2017-03-01 | 中国科学院上海硅酸盐研究所 | 三元系弛豫基铁电压电单晶及其生长方法 |
| CN103603042A (zh) * | 2013-11-18 | 2014-02-26 | 中国科学院福建物质结构研究所 | 铁电单晶铌钇酸铅-铌镁酸铅-钛酸铅及其制备和用途 |
| CN104505146B (zh) * | 2014-11-20 | 2017-02-22 | 北京工业大学 | 一种具有纳米核壳及内晶型结构的介电复合材料及制备方法 |
| KR102092358B1 (ko) | 2018-06-22 | 2020-03-23 | 울산과학기술원 | 바륨지르코늄 산화물을 이용한 단결정 잉곳 및 그 제조 방법 |
| CN109056076A (zh) * | 2018-07-03 | 2018-12-21 | 江南石墨烯研究院 | 一种掺杂铌酸锂前驱体及掺杂铌酸锂多晶料的制备方法 |
| CN111217603A (zh) * | 2020-02-07 | 2020-06-02 | 天津大学 | 一种高q值低温烧结锂镁钛系介质材料及其制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2567913B2 (ja) * | 1988-05-27 | 1996-12-25 | 三井石油化学工業株式会社 | 強誘電性セラミックス |
| DE19834355A1 (de) * | 1998-07-30 | 2000-02-03 | Henkel Kgaa | Entzündungshemmende Zahnpflegemittel |
| CN1080777C (zh) * | 1999-02-11 | 2002-03-13 | 中国科学院上海硅酸盐研究所 | 弛豫铁电单晶铌镁酸铅的制备方法 |
| GB2347416B (en) * | 1999-02-22 | 2001-02-14 | Infrared Integrated Syst Ltd | Ferroelectric ceramics |
| KR100430751B1 (ko) * | 2000-02-23 | 2004-05-10 | 주식회사 세라콤 | 페로브스카이트형 구조 산화물의 단결정 성장 방법 |
| WO2001064600A1 (en) * | 2000-03-01 | 2001-09-07 | The Penn State Research Foundation | Method for fabrication of lead based perovskite materials |
| US6468498B1 (en) * | 2000-04-03 | 2002-10-22 | Idbule Photonics Co., Ltd. | Composite metal material, preparation thereof and photocatalytic process using same |
| US6491889B2 (en) * | 2000-04-03 | 2002-12-10 | Ibule Photonics Co., Ltd. | Ferroelectric single crystal wafer and process for the preparation thereof |
| CN1187483C (zh) * | 2002-03-12 | 2005-02-02 | 中国科学院上海硅酸盐研究所 | 铌锌酸铅-钛酸铅固溶体单晶的熔体法生长 |
-
2003
- 2003-07-11 KR KR10-2003-0047458A patent/KR100537137B1/ko not_active Expired - Fee Related
- 2003-07-30 AU AU2003257707A patent/AU2003257707A1/en not_active Abandoned
- 2003-07-30 JP JP2005503880A patent/JP4405467B2/ja not_active Expired - Lifetime
- 2003-07-30 US US10/551,355 patent/US7527690B2/en not_active Expired - Lifetime
- 2003-07-30 WO PCT/KR2003/001528 patent/WO2005005320A1/en not_active Ceased
- 2003-07-30 CN CNB038260980A patent/CN100354229C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN100354229C (zh) | 2007-12-12 |
| KR20050007857A (ko) | 2005-01-21 |
| AU2003257707A1 (en) | 2005-01-28 |
| US7527690B2 (en) | 2009-05-05 |
| CN1750995A (zh) | 2006-03-22 |
| JP2006513971A (ja) | 2006-04-27 |
| JP4405467B2 (ja) | 2010-01-27 |
| WO2005005320A1 (en) | 2005-01-20 |
| US20060214131A1 (en) | 2006-09-28 |
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