KR960034486A - Barium titanate (BaTiO₃) single crystal growth method using abnormal grain growth - Google Patents

Barium titanate (BaTiO₃) single crystal growth method using abnormal grain growth Download PDF

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KR960034486A
KR960034486A KR1019950005965A KR19950005965A KR960034486A KR 960034486 A KR960034486 A KR 960034486A KR 1019950005965 A KR1019950005965 A KR 1019950005965A KR 19950005965 A KR19950005965 A KR 19950005965A KR 960034486 A KR960034486 A KR 960034486A
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South Korea
Prior art keywords
single crystal
batio
twin plate
particles
nucleating agent
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KR1019950005965A
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Korean (ko)
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KR0143799B1 (en
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김환
김도연
유영성
김영정
김상범
한주환
강명구
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한송엽
서울대학교 공과대학 교육연구재단
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Priority to KR1019950005965A priority Critical patent/KR0143799B1/en
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    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/22—Complex oxides
    • C30B29/32—Titanates; Germanates; Molybdates; Tungstates

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

BaTiO3의 원료 분말에 조핵제로서 Li2O, V2O5, MnO2, CuO, B2O3, Al2O3, SiO2, GeO2, PbO로 이루어진 군에서 선택된 하나 또는 그 이상의 성분이 첨가된 원료 분말을 미량 첨가하여 열처리중에 (111)쌍정판을 갖는 입자를 형성시키거나, 혹은 미리 육성된 (111)쌍정판을 가진 입자를 종자정(seed)으로 이용하여 이들 입자로부터 소결중(소결법)에나 혹은 융제와의 열처리중(융제법)에 빠른 성장을 일으켜 BaTiO3계 단결정을 육성시키는 방법에 관한 것이다.One or more components selected from the group consisting of Li 2 O, V 2 O 5 , MnO 2 , CuO, B 2 O 3 , Al 2 O 3 , SiO 2 , GeO 2 , and PbO as nucleating agents in the raw material powder of BaTiO 3 A small amount of this added raw powder is added to form particles having a (111) twin plate during heat treatment, or sintering from these particles using seed grown with a (111) twin plate previously grown. The present invention relates to a method of growing BaTiO 3 -based single crystals by rapid growth during (sintering method) or during heat treatment with a flux (fusing method).

Description

비정상 입성장을 이용한 티탄산 바륨(BaTiO3) 단결정 육성법Barium titanate (BaTiO3) single crystal growth method using abnormal grain growth

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 비정상 입성장(소결법)을 통한 BaTiO3계 단결정 육성시 준비된 시편을 나타낸 모식도, 제3도는 종자정(seed)을 이용한 BaTiO3단결정 제조(융제법)시의 도가니 종단면도이다.Figure 1 is a schematic diagram showing the specimen prepared during the growth of BaTiO 3- based single crystal through the abnormal grain growth (sintering method) according to the present invention, Figure 3 is a longitudinal cross-sectional view of the crucible preparation (melting method) BaTiO 3 single crystal using a seed (seed) to be.

Claims (4)

BaTiO3계 단결정을 제조하는 방법에 있어서, 상기 BaTiO3의 원료 분말에 조핵제를 혼합함으로써 (111)쌍정판을 가진 입자를 생성하거나 미리 육성된 (111)쌍정판을 가진 입자를 종자정(seed)으로 넣어준 후, 상기(111)쌍정판을 가진 입자로부터 비정상입성장을 일으켜 단결정을 육성하는 것을 특징으로 하는 단결정 제조법.In the method for producing a BaTiO 3- based single crystal, a seed having a (111) twin plate is formed by mixing a nucleating agent with the raw material powder of BaTiO 3 or seeded particles having a (111) twin plate previously grown. ), And to produce a single crystal by causing abnormal grain growth from the particles having the (111) twin plate. 제1항에 있어서, 상기 조핵제로서 Li2O, V2O5, MnO2, CuO, B2O3, Al2O3, SiO2, GeO2, P2O5, PbO로 이루어진 군에서 선택된 하나 또는 그 이상의 성분이 첨가된 원료 분말을 사용하는 것을 특지으로 하는 단결정 제조법.According to claim 1, wherein the nucleating agent in the group consisting of Li 2 O, V 2 O 5 , MnO 2 , CuO, B 2 O 3 , Al 2 O 3 , SiO 2 , GeO 2 , P 2 O 5 , PbO A single crystal production method characterized by using a raw material powder to which one or more selected components are added. 융제에 BaTiO3를 첨가하여 BaTiO3계 단결정을 제조하는 방법(융제법)에 있어서, 상기 BaTiO3의 원료 분말에 조핵제를 혼합함으로써 (111)쌍정판을 가진 입자를 생성하거나 미리 육성된 (111)쌍정판을 가진 입자를 종자정으로 넣어준 후, 상기 (111)쌍정판을 가진 입자로부터 빠른 성장을 일으켜 단결정을 육성하는 것을 특징으로 하는 단결정 제조법.In the method for producing BaTiO 3 -based single crystal by adding BaTiO 3 to the flux (melting method), a particle having a twin plate (111) is produced or previously grown by mixing a nucleating agent with the raw material powder of BaTiO 3 . ) A single crystal production method characterized by growing a single crystal by inserting particles having a twin plate into seed crystals and causing rapid growth from the particles having the twin plate. 제3항에 있어서, 상기 조핵제로서 Li2O, V2O5, MnO2, CuO, B2O3, Al2O3, SiO2, GeO2, P2O5, PbO로 이루어진 군에서 선택된 하나 또는 그 이상의 성분이 첨가된 원료 분말을 사용하는 것을 특징으로 하는 단결정 제조법.According to claim 3, wherein the nucleating agent in the group consisting of Li 2 O, V 2 O 5 , MnO 2 , CuO, B 2 O 3 , Al 2 O 3 , SiO 2 , GeO 2 , P 2 O 5 , PbO A single crystal production method characterized by using a raw powder to which one or more selected ingredients are added. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950005965A 1995-03-21 1995-03-21 Single crystal growth method for bariumtitanikm oxide using noncrystalline solio growth KR0143799B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950005965A KR0143799B1 (en) 1995-03-21 1995-03-21 Single crystal growth method for bariumtitanikm oxide using noncrystalline solio growth

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KR1019950005965A KR0143799B1 (en) 1995-03-21 1995-03-21 Single crystal growth method for bariumtitanikm oxide using noncrystalline solio growth

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KR960034486A true KR960034486A (en) 1996-10-22
KR0143799B1 KR0143799B1 (en) 1998-07-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006042A1 (en) * 1999-06-23 2001-01-25 Ceracomp Co., Ltd. Method for single crystal growth of barium titanate and barium titanate solid solution

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100355150B1 (en) * 2000-02-23 2002-10-11 주식회사 세라콤 Method for Single Crystal Growth of Barium Titanate Solid Solution
US7208041B2 (en) 2000-02-23 2007-04-24 Ceracomp Co., Ltd. Method for single crystal growth of perovskite oxides
KR100430751B1 (en) * 2000-02-23 2004-05-10 주식회사 세라콤 Method for Single Crystal Growth of Perovskite Oxides
US8202364B2 (en) 2002-10-11 2012-06-19 Ceracomp Co., Ltd. Method for solid-state single crystal growth
KR100564092B1 (en) * 2002-10-11 2006-03-27 주식회사 세라콤 Method for the Solid-State Single Crystal Growth
WO2005056887A1 (en) * 2003-12-11 2005-06-23 Lee, Hun-Su Method for manufacturing garnet single crystal and garnet single crystal manufactured thereby

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006042A1 (en) * 1999-06-23 2001-01-25 Ceracomp Co., Ltd. Method for single crystal growth of barium titanate and barium titanate solid solution

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