JP3141642B2 - 正特性サーミスタの製造方法 - Google Patents
正特性サーミスタの製造方法Info
- Publication number
- JP3141642B2 JP3141642B2 JP05221092A JP22109293A JP3141642B2 JP 3141642 B2 JP3141642 B2 JP 3141642B2 JP 05221092 A JP05221092 A JP 05221092A JP 22109293 A JP22109293 A JP 22109293A JP 3141642 B2 JP3141642 B2 JP 3141642B2
- Authority
- JP
- Japan
- Prior art keywords
- manufacturing
- particle size
- average particle
- barium
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000000203 mixture Substances 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 238000001354 calcination Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- AOWKSNWVBZGMTJ-UHFFFAOYSA-N calcium titanate Chemical compound [Ca+2].[O-][Ti]([O-])=O AOWKSNWVBZGMTJ-UHFFFAOYSA-N 0.000 claims description 10
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical group [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052788 barium Inorganic materials 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052772 Samarium Inorganic materials 0.000 claims description 2
- 150000001553 barium compounds Chemical class 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 150000002697 manganese compounds Chemical class 0.000 claims description 2
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 claims description 2
- 150000003377 silicon compounds Chemical class 0.000 claims description 2
- 150000003609 titanium compounds Chemical class 0.000 claims description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 2
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims 1
- 229910001626 barium chloride Inorganic materials 0.000 claims 1
- 239000001506 calcium phosphate Substances 0.000 claims 1
- 229910000389 calcium phosphate Inorganic materials 0.000 claims 1
- 235000011010 calcium phosphates Nutrition 0.000 claims 1
- 150000002611 lead compounds Chemical class 0.000 claims 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims 1
- 238000006722 reduction reaction Methods 0.000 description 17
- 230000009467 reduction Effects 0.000 description 16
- 230000001603 reducing effect Effects 0.000 description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 230000006866 deterioration Effects 0.000 description 8
- 239000011812 mixed powder Substances 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 5
- 229910002113 barium titanate Inorganic materials 0.000 description 5
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011575 calcium Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000000280 densification Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000005036 potential barrier Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000003574 free electron Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 239000004278 EU approved seasoning Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 1
- DUPIXUINLCPYLU-UHFFFAOYSA-N barium lead Chemical compound [Ba].[Pb] DUPIXUINLCPYLU-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- WEUCVIBPSSMHJG-UHFFFAOYSA-N calcium titanate Chemical compound [O-2].[O-2].[O-2].[Ca+2].[Ti+4] WEUCVIBPSSMHJG-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 229910003440 dysprosium oxide Inorganic materials 0.000 description 1
- NLQFUUYNQFMIJW-UHFFFAOYSA-N dysprosium(iii) oxide Chemical compound O=[Dy]O[Dy]=O NLQFUUYNQFMIJW-UHFFFAOYSA-N 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011802 pulverized particle Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical group [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- C04B35/4684—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 containing lead compounds
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- 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
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- C04B35/472—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 lead titanates
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62685—Treating the starting powders individually or as mixtures characterised by the order of addition of constituents or additives
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
- H01C7/022—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances
- H01C7/023—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances containing oxides or oxidic compounds, e.g. ferrites
- H01C7/025—Perovskites, e.g. titanates
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
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Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05221092A JP3141642B2 (ja) | 1993-09-06 | 1993-09-06 | 正特性サーミスタの製造方法 |
| CN93120373A CN1040708C (zh) | 1993-09-06 | 1993-11-25 | 正温度系数热敏电阻及其制造方法 |
| TW083100514A TW270208B (US07714131-20100511-C00038.png) | 1993-09-06 | 1994-01-21 | |
| DE69401474T DE69401474T2 (de) | 1993-09-06 | 1994-07-20 | Thermistor mit positivem Temperaturkoeffizienten und Herstellungsverfahren |
| EP94111332A EP0642140B1 (en) | 1993-09-06 | 1994-07-20 | Positive temperature coefficient thermistor and fabrication method thereof |
| US08/729,071 US5815063A (en) | 1993-09-06 | 1996-10-10 | Positive temperature coefficient thermistor and fabrication method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05221092A JP3141642B2 (ja) | 1993-09-06 | 1993-09-06 | 正特性サーミスタの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0778703A JPH0778703A (ja) | 1995-03-20 |
| JP3141642B2 true JP3141642B2 (ja) | 2001-03-05 |
Family
ID=16761370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05221092A Expired - Fee Related JP3141642B2 (ja) | 1993-09-06 | 1993-09-06 | 正特性サーミスタの製造方法 |
Country Status (6)
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3319314B2 (ja) * | 1996-11-20 | 2002-08-26 | 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 |
| JP2000095562A (ja) * | 1998-07-24 | 2000-04-04 | Murata Mfg Co Ltd | 正特性サ―ミスタ用原料組成物、正特性サ―ミスタ用磁器、および正特性サ―ミスタ用磁器の製造方法 |
| BR9900252A (pt) | 1999-02-02 | 2000-08-29 | Companhia Brasileira Carbureto | Recipiente de aço inoxidável para a formação de eletrodos de autocozimento para a utilização em baixos-fornos elétricos de redução |
| BR9900253A (pt) | 1999-02-02 | 2000-08-29 | Companhia Brasileira Carbureto | Recipiente de alumìnio e aço inoxidável a formação de eletrodos de autocozimento para a utilização em baixos-fornos elétricos de redução |
| JP3506044B2 (ja) * | 1999-04-28 | 2004-03-15 | 株式会社村田製作所 | 半導体セラミック、半導体セラミック素子、および回路保護素子 |
| JP2002124403A (ja) * | 2000-08-10 | 2002-04-26 | Nippon Soken Inc | 耐還元性サーミスタ素子とその製造方法および温度センサ |
| JP2002057003A (ja) | 2000-08-10 | 2002-02-22 | Nippon Soken Inc | 耐還元性サーミスタ素子とその製造方法および温度センサ |
| WO2002043439A1 (en) * | 2000-11-21 | 2002-05-30 | Bdsb Holdings Limited | A method of producing electrically resistive heating elements having self-regulating properties |
| JP3636075B2 (ja) * | 2001-01-18 | 2005-04-06 | 株式会社村田製作所 | 積層ｐｔｃサーミスタ |
| JP2005506663A (ja) | 2001-10-12 | 2005-03-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 陰極線管 |
| JP4211510B2 (ja) * | 2002-08-13 | 2009-01-21 | 株式会社村田製作所 | 積層型ｐｔｃサーミスタの製造方法 |
| JP3831363B2 (ja) * | 2003-06-24 | 2006-10-11 | Ｔｄｋ株式会社 | 有機質正特性サーミスタ及びその製造方法並びにその酸素含有量の測定方法 |
| JP4800956B2 (ja) * | 2004-09-27 | 2011-10-26 | 東邦チタニウム株式会社 | チタン酸バリウム系半導体磁器組成物 |
| CN101127265B (zh) * | 2007-07-30 | 2011-04-20 | 韩城市华龙电子有限责任公司 | 负居里点正温度系数ptcr热敏电阻元件 |
| US9034210B2 (en) | 2007-12-05 | 2015-05-19 | Epcos Ag | Feedstock and method for preparing the feedstock |
| US20090146042A1 (en) * | 2007-12-05 | 2009-06-11 | Jan Ihle | Mold comprising a ptc-ceramic |
| CN101429020B (zh) * | 2008-11-26 | 2011-11-23 | 丹东国通电子元件有限公司 | 浪涌抑制器用正温度系数热敏电阻生产方法 |
| US8400254B2 (en) | 2009-04-23 | 2013-03-19 | Panasonic Corporation | Surge absorbing element |
| CN102329131A (zh) * | 2011-06-10 | 2012-01-25 | 溧阳杰敏电子有限公司 | 一种低频率效应的陶瓷型正温度系数热敏电阻 |
| CN104311004B (zh) * | 2014-10-20 | 2017-01-25 | 中国科学院上海硅酸盐研究所 | Ptc陶瓷材料及提高ptc陶瓷材料居里点以下电阻温度稳定性的方法 |
| CN108727055A (zh) * | 2018-06-27 | 2018-11-02 | 佛山市南海蜂窝电子制品有限公司 | 一种ptc蜂窝陶瓷加热元件及其制备方法 |
| CN112110727B (zh) * | 2020-09-22 | 2022-03-11 | 中国科学院新疆理化技术研究所 | 一种氟化物掺杂的高温负温度系数热敏电阻材料及制备方法 |
| CN115108827B (zh) * | 2021-03-17 | 2023-07-04 | 华中科技大学 | 一种正温度系数热敏电阻及其制备方法 |
| CN113265636A (zh) * | 2021-05-27 | 2021-08-17 | 江苏新林芝电子科技股份有限公司 | 一种提高陶瓷ptc热敏元件的抗还原性的方法 |
| CN114496432A (zh) * | 2022-03-10 | 2022-05-13 | 江苏新林芝电子科技股份有限公司 | 一种提高ptc热敏元件抗还原性能的方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4014822A (en) * | 1968-08-13 | 1977-03-29 | Murata Manufacturing Co., Ltd. | Semiconductor ceramic composition |
| JPS5326677B2 (US07714131-20100511-C00038.png) * | 1973-09-24 | 1978-08-03 | ||
| US3975307A (en) * | 1974-10-09 | 1976-08-17 | Matsushita Electric Industrial Co., Ltd. | PTC thermistor composition and method of making the same |
| US4175060A (en) * | 1977-11-25 | 1979-11-20 | Bell Telephone Laboratories, Incorporated | Composition and processing procedure for making thermistors |
| US4403236A (en) * | 1979-10-09 | 1983-09-06 | Murata Manufacturing Co., Ltd. | Boundary layer type semiconducting ceramic capacitors with high capacitance |
| JPS57157502A (en) * | 1981-03-24 | 1982-09-29 | Murata Manufacturing Co | Barium titanate series porcelain composition |
| JPS5853539A (ja) * | 1981-09-23 | 1983-03-30 | Nippon Denso Co Ltd | 自動車用電気式温蔵庫 |
| JPH0719645B2 (ja) * | 1984-09-07 | 1995-03-06 | 日本電装株式会社 | 自己温度制御型発熱装置 |
| AU572013B2 (en) * | 1984-12-26 | 1988-04-28 | Nippondenso Co. Ltd. | Anti-reducing semi conducting porcelain with a positive temperature coefficient of resistance |
| US4766409A (en) * | 1985-11-25 | 1988-08-23 | Murata Manufacturing Co., Ltd. | Thermistor having a positive temperature coefficient of resistance |
| US4952902A (en) * | 1987-03-17 | 1990-08-28 | Tdk Corporation | Thermistor materials and elements |
| EP0415428B1 (en) * | 1989-08-31 | 1994-06-08 | Central Glass Company, Limited | Powder composition for sintering into modified barium titanate semiconductive ceramic |
| US5219811A (en) * | 1989-08-31 | 1993-06-15 | Central Glass Company, Limited | Powder composition for sintering into modified barium titanate semiconductive ceramic |
| US5238911A (en) * | 1990-04-04 | 1993-08-24 | Hitachi Chemical Company Ltd. | Oxide superconductor Bi--Sr--Ca--Mg--Ba--Cu--O |
| US5262370A (en) * | 1992-04-07 | 1993-11-16 | Trans-Tech, Inc. | Dielectric ceramic compositions |
-
1993
- 1993-09-06 JP JP05221092A patent/JP3141642B2/ja not_active Expired - Fee Related
- 1993-11-25 CN CN93120373A patent/CN1040708C/zh not_active Expired - Fee Related
-
1994
- 1994-01-21 TW TW083100514A patent/TW270208B/zh active
- 1994-07-20 EP EP94111332A patent/EP0642140B1/en not_active Expired - Lifetime
- 1994-07-20 DE DE69401474T patent/DE69401474T2/de not_active Expired - Fee Related
-
1996
- 1996-10-10 US US08/729,071 patent/US5815063A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0778703A (ja) | 1995-03-20 |
| DE69401474T2 (de) | 1997-04-30 |
| US5815063A (en) | 1998-09-29 |
| EP0642140B1 (en) | 1997-01-15 |
| EP0642140A1 (en) | 1995-03-08 |
| CN1113026A (zh) | 1995-12-06 |
| TW270208B (US07714131-20100511-C00038.png) | 1996-02-11 |
| DE69401474D1 (de) | 1997-02-27 |
| CN1040708C (zh) | 1998-11-11 |
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