KR19990036978A - 티탄산 바륨계 반도체 세라믹 - Google Patents
티탄산 바륨계 반도체 세라믹 Download PDFInfo
- Publication number
- KR19990036978A KR19990036978A KR1019980042214A KR19980042214A KR19990036978A KR 19990036978 A KR19990036978 A KR 19990036978A KR 1019980042214 A KR1019980042214 A KR 1019980042214A KR 19980042214 A KR19980042214 A KR 19980042214A KR 19990036978 A KR19990036978 A KR 19990036978A
- Authority
- KR
- South Korea
- Prior art keywords
- barium titanate
- powder
- ceramic
- particle diameter
- semiconductor ceramic
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
- C04B35/4682—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/003—Titanates
- C01G23/006—Alkaline earth titanates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/76—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by a space-group or by other symmetry indications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Ceramic Engineering (AREA)
- Geology (AREA)
- Composite Materials (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Thermistors And Varistors (AREA)
Abstract
Description
원료분말들의 물성 | 티탄산 바륨계 반도체 세라믹의 물성 | |||||||
입자지름(㎛) | 결정구조 | 격자정수(옹스트롬) | Ba/Ti비 | La/Ti비 | Av.세라믹 입자지름(㎛) | 실온비저항(Ω㎝) | 내전압(V/㎜) | |
실시예 1 | 0.05 | 입방결정 | 4.032 | 0.991 | 0.0021 | 0.9 | 50 | 900 |
실시예 2 | 0.05 | 입방결정 | 4.029 | 0.998 | 0.0018 | 0.8 | 78 | 1250 |
실시예 3 | 0.05 | 입방결정 | 4.032 | 0.998 | 0.0018 | 0.9 | 60 | 1120 |
실시예 4 | 0.05 | 입방결정 | 4.027 | 0.996 | 0.0013 | 0.8 | 84 | 1300 |
실시예 5 | 0.1 | 입방결정 | 4.020 | 0.991 | 0.0021 | 0.9 | 40 | 800 |
실시예 6 | 0.05 | 입방결정 | 4.028 | 0.998 | - | 0.8 | 90 | 720 |
비교예 1 | 0.17 | 입방결정 | 4.005 | 0.991 | 0.0021 | 1∼3 | 30 | 400 |
비교예 2 | 0.1 | 입방결정 | 4.010 | 0.998 | 0.0020 | 1∼20 | 40 | 300 |
Claims (17)
- 약 0.9㎛ 이하의 평균 세라믹 입자 지름을 갖는 것을 특징으로 하는 티탄산 바륨 반도체 세라믹.
- 제1항에 있어서, 희토류 금속원소와 전이원소로 이루어진 군에서 선택된 적어도 1종의 반도체화제를 함유하는 것을 특징으로 하는 티탄산 바륨 반도체 세라믹.
- 제1항에 있어서, La를 함유하는 것을 특징으로 하는 티탄산 바륨 반도체 세라믹.
- 제1항에 있어서, 입자지름이 약 0.1㎛ 이하이고, 결정구조가 입방결정이며, 격자정수가 4.02 옹스트롬 이상이며, 또 고용체의 형태로 적어도 1종의 반도체화제를 함유하는 티탄산 바륨 분말을 포함하는 것을 특징으로 하는 티탄산 바륨 반도체 세라믹 제조용의 분말.
- 제4항에 있어서, 상기 반도체화제가 희토류 금속원소와 전이원소로 이루어진 군으로부터 선택된 것을 특징으로 하는 분말.
- 제5항에 있어서, 상기 반도체화제가 La인 것을 특징으로 하는 분말.
- 제 4항에 있어서, 상기 티탄산 바륨 분말이 하소된 분말인 것을 특징으로 하는 분말.
- 제7항에 있어서, 상기 반도체화제가 La인 것을 특징으로 하는 분말.
- 제 4항에 있어서, 상기 티탄산 바륨 분말이 하소되지 않은 분말인 것을 특징으로 하는 분말.
- 제9항에 있어서, 상기 반도체화제가 La인 것을 특징으로 하는 분말.
- 제1항에 있어서, 입자지름이 약 0.1㎛ 이하이고, 결정구조가 입방결정이며, 격자정수가 4.02 옹스트롬 이상이며, 또 고용체의 형태로 반도체화제를 함유하는 티탄산 바륨 분말을 한동안 어느 온도에서 소성하여, 얻은 티탄산의 평균입자지름이 약 0.9㎛ 이하인, 티탄산 바륨 반도체 세라믹 제조공정.
- 제11항에 있어서, 상기 반도체화제가 희토류 금속원소와 전이원소로 이루어진 군으로부터 선택된 것을 특징으로 하는 공정.
- 제12항에 있어서, 상기 반도체화제가 La인 것을 특징으로 하는 공정.
- 제 11항에 있어서, 상기 티탄산 바륨 분말이 하소된 분말인 것을 특징으로 하는 공정.
- 제14항에 있어서, 상기 반도체화제가 La인 것을 특징으로 하는 공정.
- 제 11항에 있어서, 상기 티탄산 바륨 분말이 하소되지 않은 분말인 것을 특징으로 하는 공정.
- 제17항에 있어서, 상기 반도체화제가 La인 것을 특징으로 하는 공정.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27674097A JP3608599B2 (ja) | 1997-10-09 | 1997-10-09 | チタン酸バリウム系半導体磁器 |
JP9-276740 | 1997-10-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990036978A true KR19990036978A (ko) | 1999-05-25 |
KR100318398B1 KR100318398B1 (ko) | 2002-02-19 |
Family
ID=17573687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980042214A KR100318398B1 (ko) | 1997-10-09 | 1998-10-09 | 티탄산바륨계반도체세라믹 |
Country Status (8)
Country | Link |
---|---|
US (2) | US6472339B2 (ko) |
EP (1) | EP0908423B1 (ko) |
JP (1) | JP3608599B2 (ko) |
KR (1) | KR100318398B1 (ko) |
CN (1) | CN1087719C (ko) |
DE (1) | DE69810564T2 (ko) |
SG (1) | SG67565A1 (ko) |
TW (1) | TW588027B (ko) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0001325L (sv) * | 2000-04-10 | 2001-06-25 | Valinge Aluminium Ab | Låssystem för hopfogning av golvskivor samt golvskivor försedda med sådana låssystem och golv bildat av sådana golvskivor |
JP3039513B2 (ja) * | 1998-05-12 | 2000-05-08 | 株式会社村田製作所 | チタン酸バリウム粉末、および半導体セラミック、ならびに半導体セラミック素子 |
JP3424742B2 (ja) * | 1998-11-11 | 2003-07-07 | 株式会社村田製作所 | 正の抵抗温度特性を有する積層型半導体セラミック電子部品 |
JP2001167904A (ja) * | 1999-12-09 | 2001-06-22 | Murata Mfg Co Ltd | 半導体磁器およびそれを用いた電子部品 |
DE10323816A1 (de) * | 2003-05-23 | 2004-12-09 | Basf Ag | Verfahren zur Herstellung von Mischoxiden mit mittleren Durchmessern kleiner als 10 Nanometer |
US8715614B2 (en) * | 2003-07-21 | 2014-05-06 | Beijing University Of Chemical Technology | High-gravity reactive precipitation process for the preparation of barium titanate powders |
CN100450934C (zh) * | 2005-06-14 | 2009-01-14 | 清华大学 | 一种钛酸钡低维纳米粉体材料及其制备方法 |
JP2008205343A (ja) * | 2007-02-22 | 2008-09-04 | Tdk Corp | 積層型サーミスタの製造方法 |
JP5413458B2 (ja) * | 2009-06-05 | 2014-02-12 | 株式会社村田製作所 | チタン酸バリウム系半導体磁器組成物およびチタン酸バリウム系半導体磁器素子 |
CN101786654B (zh) * | 2010-03-04 | 2011-12-14 | 西北工业大学 | 纳米钛酸锶钡粉体的制备方法 |
CN104428847B (zh) | 2012-07-25 | 2018-01-26 | 株式会社村田制作所 | 层叠型ptc热敏电阻元件 |
JP7025694B2 (ja) * | 2018-01-31 | 2022-02-25 | Tdk株式会社 | 誘電体磁器組成物、電子部品および積層セラミックコンデンサ |
JP7025695B2 (ja) * | 2018-01-31 | 2022-02-25 | Tdk株式会社 | 誘電体磁器組成物、電子部品および積層セラミックコンデンサ |
CN115626823B (zh) * | 2022-11-02 | 2023-08-29 | 重庆三省有朋科技有限公司 | 一种钛酸钡基陶瓷电介质材料及其制备方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3764529A (en) * | 1972-02-17 | 1973-10-09 | Matsushita Electric Ind Co Ltd | Method of manufacturing fine grain ceramic barium titanate |
US4535064A (en) * | 1983-05-25 | 1985-08-13 | Murata Manufacturing Co., Ltd. | Ceramic compositions for a reduction-reoxidation type semiconducting capacitor |
JPS6025004A (ja) | 1983-07-20 | 1985-02-07 | Shiro Okamura | 光磁気記録装置 |
GB2193713B (en) | 1986-07-14 | 1990-12-05 | Cabot Corp | Method of producing perovskite-type compounds. |
US5453262A (en) | 1988-12-09 | 1995-09-26 | Battelle Memorial Institute | Continuous process for production of ceramic powders with controlled morphology |
US5219811A (en) * | 1989-08-31 | 1993-06-15 | Central Glass Company, Limited | Powder composition for sintering into modified barium titanate semiconductive ceramic |
NL8902923A (nl) * | 1989-11-27 | 1991-06-17 | Philips Nv | Keramisch lichaam uit een dielektrisch materiaal op basis van bariumtitanaat. |
JPH0426101A (ja) | 1990-05-21 | 1992-01-29 | Inax Corp | 正特性半導体磁器 |
US5314651A (en) * | 1992-05-29 | 1994-05-24 | Texas Instruments Incorporated | Fine-grain pyroelectric detector material and method |
US5510305A (en) * | 1993-06-15 | 1996-04-23 | Murata Manufacturing Co., Ltd. | Non-reducible dielectric ceramic composition |
IT1270828B (it) | 1993-09-03 | 1997-05-13 | Chon Int Co Ltd | Processo per la sintesi di polveri ceramiche cristalline di composti di perovskite |
JP3024537B2 (ja) * | 1995-12-20 | 2000-03-21 | 株式会社村田製作所 | 積層セラミックコンデンサ |
JP3039511B2 (ja) * | 1998-04-13 | 2000-05-08 | 株式会社村田製作所 | 半導体セラミックおよび半導体セラミック素子 |
JP3039513B2 (ja) * | 1998-05-12 | 2000-05-08 | 株式会社村田製作所 | チタン酸バリウム粉末、および半導体セラミック、ならびに半導体セラミック素子 |
-
1997
- 1997-10-09 JP JP27674097A patent/JP3608599B2/ja not_active Expired - Lifetime
-
1998
- 1998-09-18 US US09/157,062 patent/US6472339B2/en not_active Expired - Lifetime
- 1998-09-28 TW TW087116065A patent/TW588027B/zh not_active IP Right Cessation
- 1998-10-01 DE DE69810564T patent/DE69810564T2/de not_active Expired - Lifetime
- 1998-10-01 EP EP98118567A patent/EP0908423B1/en not_active Expired - Lifetime
- 1998-10-05 SG SG1998004015A patent/SG67565A1/en unknown
- 1998-10-09 CN CN98121320A patent/CN1087719C/zh not_active Expired - Lifetime
- 1998-10-09 KR KR1019980042214A patent/KR100318398B1/ko not_active IP Right Cessation
-
2002
- 2002-09-13 US US10/243,530 patent/US20030022784A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN1087719C (zh) | 2002-07-17 |
EP0908423B1 (en) | 2003-01-08 |
US6472339B2 (en) | 2002-10-29 |
DE69810564T2 (de) | 2003-05-15 |
US20030022784A1 (en) | 2003-01-30 |
KR100318398B1 (ko) | 2002-02-19 |
US20010008866A1 (en) | 2001-07-19 |
SG67565A1 (en) | 1999-09-21 |
TW588027B (en) | 2004-05-21 |
EP0908423A1 (en) | 1999-04-14 |
JP3608599B2 (ja) | 2005-01-12 |
JPH11116327A (ja) | 1999-04-27 |
CN1214328A (zh) | 1999-04-21 |
DE69810564D1 (de) | 2003-02-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100318398B1 (ko) | 티탄산바륨계반도체세라믹 | |
US6162752A (en) | Barium titanate powder, semiconducting ceramic, and semiconducting ceramic electronic element | |
CN1237265A (zh) | 正特性半导体陶瓷的制造方法 | |
JPH075363B2 (ja) | Ptc磁器組成物及びその製造方法 | |
US6071842A (en) | Barium titanate-based semiconductor ceramic | |
JPH0388770A (ja) | チタン酸バリウム系半導体磁器組成物並びにサーミスター | |
JP3039511B2 (ja) | 半導体セラミックおよび半導体セラミック素子 | |
CN1093100C (zh) | 钛酸钡系半导体陶瓷 | |
JP2649341B2 (ja) | 粒界絶縁型半導体磁器 | |
US4175060A (en) | Composition and processing procedure for making thermistors | |
JPH07297009A (ja) | 正特性サーミスタ及びその製造方法 | |
JP4038618B2 (ja) | チタン酸バリウム系半導体磁器の製造方法 | |
JP2653789B2 (ja) | 誘電体共振器材料の製造方法 | |
JPH10139535A (ja) | チタン酸バリウム系半導体磁器の製造方法 | |
JP2641864B2 (ja) | 半導体コンデンサ材料の製造方法 | |
JPH10152372A (ja) | チタン酸バリウム系半導体磁器及びその製造方法 | |
JPH07335404A (ja) | 正特性サーミスタの製造方法 | |
JP2970405B2 (ja) | 粒界絶縁型半導体磁器組成物及びその製造方法 | |
JPH07142207A (ja) | チタン酸バリウム半導体磁器およびその製造方法 | |
JPH03285870A (ja) | 粒界絶縁型半導体磁器組成物及びその製造方法 | |
JPH08213205A (ja) | チタン酸バリウム系半導体磁器およびその製造方法 | |
JPH10135006A (ja) | 正特性サーミスタおよびその製造方法 | |
JPH0629139B2 (ja) | 誘電体磁器製造用原料粉末の製造方法 | |
JPH09246015A (ja) | 正特性半導体磁器の製造方法 | |
JPH04160050A (ja) | 磁器半導体組成物およびその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20121119 Year of fee payment: 12 |
|
FPAY | Annual fee payment |
Payment date: 20131119 Year of fee payment: 13 |
|
FPAY | Annual fee payment |
Payment date: 20141120 Year of fee payment: 14 |
|
FPAY | Annual fee payment |
Payment date: 20151127 Year of fee payment: 15 |
|
FPAY | Annual fee payment |
Payment date: 20161205 Year of fee payment: 16 |
|
FPAY | Annual fee payment |
Payment date: 20171201 Year of fee payment: 17 |
|
EXPY | Expiration of term |