JP2003525350A5 - - Google Patents
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- Publication number
- JP2003525350A5 JP2003525350A5 JP2001563259A JP2001563259A JP2003525350A5 JP 2003525350 A5 JP2003525350 A5 JP 2003525350A5 JP 2001563259 A JP2001563259 A JP 2001563259A JP 2001563259 A JP2001563259 A JP 2001563259A JP 2003525350 A5 JP2003525350 A5 JP 2003525350A5
- Authority
- JP
- Japan
- Prior art keywords
- powder
- temperature
- nitriding
- heat treatment
- occurs
- 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.)
- Granted
Links
- 239000000843 powder Substances 0.000 description 21
- 238000005121 nitriding Methods 0.000 description 19
- 238000010438 heat treatment Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 9
- 238000010304 firing Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000001354 calcination Methods 0.000 description 4
- 238000006392 deoxygenation reaction Methods 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18597900P | 2000-03-01 | 2000-03-01 | |
| US60/185,979 | 2000-03-01 | ||
| PCT/US2001/006449 WO2001064374A2 (en) | 2000-03-01 | 2001-02-28 | Nitrided valve metals and processes for making the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003525350A JP2003525350A (ja) | 2003-08-26 |
| JP2003525350A5 true JP2003525350A5 (cg-RX-API-DMAC7.html) | 2009-01-22 |
| JP4261105B2 JP4261105B2 (ja) | 2009-04-30 |
Family
ID=22683158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001563259A Expired - Fee Related JP4261105B2 (ja) | 2000-03-01 | 2001-02-28 | 窒化バルブ金属およびその製造方法 |
Country Status (15)
| Country | Link |
|---|---|
| US (2) | US6679934B2 (cg-RX-API-DMAC7.html) |
| EP (1) | EP1259346A2 (cg-RX-API-DMAC7.html) |
| JP (1) | JP4261105B2 (cg-RX-API-DMAC7.html) |
| KR (1) | KR20020091109A (cg-RX-API-DMAC7.html) |
| CN (1) | CN100491022C (cg-RX-API-DMAC7.html) |
| AU (2) | AU2001239946B2 (cg-RX-API-DMAC7.html) |
| BR (1) | BR0108905A (cg-RX-API-DMAC7.html) |
| CA (1) | CA2401779A1 (cg-RX-API-DMAC7.html) |
| CZ (1) | CZ305376B6 (cg-RX-API-DMAC7.html) |
| HK (1) | HK1053078A1 (cg-RX-API-DMAC7.html) |
| IL (2) | IL151549A0 (cg-RX-API-DMAC7.html) |
| MX (1) | MXPA02008557A (cg-RX-API-DMAC7.html) |
| RU (1) | RU2246376C2 (cg-RX-API-DMAC7.html) |
| TW (1) | TW539585B (cg-RX-API-DMAC7.html) |
| WO (1) | WO2001064374A2 (cg-RX-API-DMAC7.html) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6576038B1 (en) * | 1998-05-22 | 2003-06-10 | Cabot Corporation | Method to agglomerate metal particles and metal particles having improved properties |
| US6375704B1 (en) * | 1999-05-12 | 2002-04-23 | Cabot Corporation | High capacitance niobium powders and electrolytic capacitor anodes |
| US6432161B1 (en) * | 2000-02-08 | 2002-08-13 | Cabot Supermetals K.K. | Nitrogen-containing metal powder, production process thereof, and porous sintered body and solid electrolytic capacitor using the metal powder |
| IL151549A0 (en) | 2000-03-01 | 2003-04-10 | Cabot Corp | Nitrided valve metals and processes for making the same |
| JP3718412B2 (ja) * | 2000-06-01 | 2005-11-24 | キャボットスーパーメタル株式会社 | ニオブまたはタンタル粉末およびその製造方法 |
| US6554884B1 (en) | 2000-10-24 | 2003-04-29 | H.C. Starck, Inc. | Tantalum and tantalum nitride powder mixtures for electrolytic capacitors substrates |
| JP3624898B2 (ja) * | 2002-04-26 | 2005-03-02 | 昭和電工株式会社 | ニオブ粉、それを用いた焼結体及びそれを用いたコンデンサ |
| JP2004076063A (ja) * | 2002-08-13 | 2004-03-11 | Kawatetsu Mining Co Ltd | ニオブ合金粉末、固体電解コンデンサ用アノード及び固体電解コンデンサ |
| JP2004143477A (ja) * | 2002-10-22 | 2004-05-20 | Cabot Supermetal Kk | ニオブ粉末およびその製造方法、並びにそれを用いた固体電解コンデンサ |
| US7157073B2 (en) | 2003-05-02 | 2007-01-02 | Reading Alloys, Inc. | Production of high-purity niobium monoxide and capacitor production therefrom |
| WO2004103906A2 (en) | 2003-05-19 | 2004-12-02 | Cabot Corporation | Methods of making a niobium metal oxide and oxygen reduced niobium oxides |
| US7803235B2 (en) * | 2004-01-08 | 2010-09-28 | Cabot Corporation | Passivation of tantalum and other metal powders using oxygen |
| US7085127B2 (en) * | 2004-03-02 | 2006-08-01 | Vishay Sprague, Inc. | Surface mount chip capacitor |
| US7088573B2 (en) * | 2004-03-02 | 2006-08-08 | Vishay Sprague, Inc. | Surface mount MELF capacitor |
| US20050225927A1 (en) * | 2004-04-06 | 2005-10-13 | Tagusagawa Solon Y | Processes for the production of niobium oxides with controlled tantalum content and capacitors made therefrom |
| EP1736261B1 (en) * | 2004-04-15 | 2008-12-17 | JFE Mineral Company, Ltd. | Tantalum powder and solid electrolytic capacitor utilizing the same |
| US20060070492A1 (en) * | 2004-06-28 | 2006-04-06 | Yongjian Qiu | High capacitance tantalum flakes and methods of producing the same |
| CZ306436B6 (cs) * | 2006-05-05 | 2017-01-25 | Cabot Corporation | Tantalový prášek a způsob jeho výroby a anoda elektrolytického kondenzátoru |
| US8057883B2 (en) * | 2007-05-30 | 2011-11-15 | Kemet Electronics Corporation | Abrasive process for modifying corners, edges, and surfaces of capacitor anode bodies |
| JP4868601B2 (ja) * | 2007-12-05 | 2012-02-01 | Ｎｅｃトーキン株式会社 | 固体電解コンデンサ及びその製造方法 |
| JP2009164412A (ja) * | 2008-01-08 | 2009-07-23 | Kobe Steel Ltd | 多孔質金属薄膜およびその製造方法、ならびにコンデンサ |
| CN100528418C (zh) * | 2008-01-11 | 2009-08-19 | 宁夏东方钽业股份有限公司 | 含氮均匀的阀金属粉末及其制造方法,阀金属坯块和阀金属烧结体以及电解电容器的阳极 |
| RU2445188C2 (ru) * | 2009-12-28 | 2012-03-20 | Открытое акционерное общество "Русполимет" | Способ получения изделий из стальных гранул методом порошковой металлургии с равномерным распределением азота в объеме изделия |
| US9764388B2 (en) * | 2013-12-10 | 2017-09-19 | Ningxia Orient Tantalum Industry Co., Ltd. | Method for preparing tantalum powder of capacitor grade with high nitrogen content, tantalum powder of capacitor grade prepared thereby, and anode and capacitor prepared from tantalum powder |
| IL264192B2 (en) * | 2016-07-13 | 2023-12-01 | Ningxia Orient Tantalum Ind Co Ltd | Flaked tantalum powder and preparation method thereof |
| JP6815246B2 (ja) * | 2017-03-27 | 2021-01-20 | 太平洋セメント株式会社 | 窒化タンタル粒子 |
| CN107857240B (zh) * | 2017-11-30 | 2021-03-30 | 株洲硬质合金集团有限公司 | 氮化铌粉末的生产方法 |
| CN111906315B (zh) * | 2020-07-17 | 2022-04-05 | 歌尔光学科技有限公司 | 粉末冶金方法 |
Family Cites Families (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3427132A (en) * | 1967-04-12 | 1969-02-11 | Nat Res Corp | Tantalum nitride powder and method for its preparation |
| BE791139A (fr) | 1972-01-14 | 1973-03-01 | Western Electric Co | Procede pour le depot de beta-tantale dope par l'azote |
| CS164421B1 (cg-RX-API-DMAC7.html) * | 1972-03-06 | 1975-11-07 | ||
| USRE32260E (en) | 1975-07-14 | 1986-10-07 | Fansteel Inc. | Tantalum powder and method of making the same |
| US4423004A (en) * | 1983-03-24 | 1983-12-27 | Sprague Electric Company | Treatment of tantalum powder |
| US4544403A (en) | 1984-11-30 | 1985-10-01 | Fansteel Inc. | High charge, low leakage tantalum powders |
| JPS63221842A (ja) | 1987-03-11 | 1988-09-14 | Nippon Steel Corp | 金属粉体、金属化合物粉体およびセラミツクス粉体の製造方法および装置 |
| US4805074A (en) | 1987-03-20 | 1989-02-14 | Nitsuko Corporation | Solid electrolytic capacitor, and method of manufacturing same |
| US5211741A (en) * | 1987-11-30 | 1993-05-18 | Cabot Corporation | Flaked tantalum powder |
| DE3820960A1 (de) | 1988-06-22 | 1989-12-28 | Starck Hermann C Fa | Feinkoernige hochreine erdsaeuremetallpulver, verfahren zu ihrer herstellung sowie deren verwendung |
| DE3918691A1 (de) | 1989-06-08 | 1990-12-13 | Starck Hermann C Fa | Nioboxidpulver (nb(pfeil abwaerts)2(pfeil abwaerts)o(pfeil abwaerts)5(pfeil abwaerts)) sowie verfahren zu dessen herstellung |
| US4968481A (en) | 1989-09-28 | 1990-11-06 | V Tech Corporation | Tantalum powder with improved capacitor anode processing characteristics |
| JP2973499B2 (ja) * | 1990-09-13 | 1999-11-08 | 松下電器産業株式会社 | チップ型固体電解コンデンサ |
| FR2671339B1 (fr) | 1991-01-03 | 1993-08-27 | Pechiney Electrometallurgie | Procede de nitruration directe de metaux a bas point de fusion. |
| US5245514A (en) | 1992-05-27 | 1993-09-14 | Cabot Corporation | Extruded capacitor electrode and method of making the same |
| US5448447A (en) | 1993-04-26 | 1995-09-05 | Cabot Corporation | Process for making an improved tantalum powder and high capacitance low leakage electrode made therefrom |
| US5412533A (en) | 1993-06-22 | 1995-05-02 | Rohm Co., Ltd. | Solid electrolytic capacitor and manufacturing method thereof |
| EP0665302B1 (en) | 1994-01-26 | 2000-05-03 | H.C. Starck, INC. | Nitriding tantalum powder |
| JP3434041B2 (ja) | 1994-09-28 | 2003-08-04 | スタルクヴイテック株式会社 | タンタル粉末及びそれを用いた電解コンデンサ |
| JPH0897096A (ja) | 1994-09-28 | 1996-04-12 | Sutaruku Buitetsuku Kk | タンタル粉末及びそれを用いた電解コンデンサ |
| US5825611A (en) | 1997-01-29 | 1998-10-20 | Vishay Sprague, Inc. | Doped sintered tantalum pellets with nitrogen in a capacitor |
| US6185090B1 (en) | 1997-01-29 | 2001-02-06 | Vishay Sprague, Inc. | Method for doping sintered tantalum and niobium pellets with nitrogen |
| WO1998037249A1 (de) * | 1997-02-19 | 1998-08-27 | H.C. Starck Gmbh & Co. Kg | Tantalpulver, verfahren zu seiner herstellung, sowie daraus erhältliche sinteranoden |
| EP0964936B1 (de) | 1997-02-19 | 2001-10-04 | H.C. Starck GmbH & Co. KG | Tantal-pulver, verfahren zu seiner herstellung, sowie daraus erhältliche sinteranoden |
| JP3254163B2 (ja) | 1997-02-28 | 2002-02-04 | 昭和電工株式会社 | コンデンサ |
| US6051044A (en) * | 1998-05-04 | 2000-04-18 | Cabot Corporation | Nitrided niobium powders and niobium electrolytic capacitors |
| DE19831280A1 (de) | 1998-07-13 | 2000-01-20 | Starck H C Gmbh Co Kg | Verfahren zur Herstellung von Erdsäuremetallpulvern, insbesondere Niobpulvern |
| US6171363B1 (en) | 1998-05-06 | 2001-01-09 | H. C. Starck, Inc. | Method for producing tantallum/niobium metal powders by the reduction of their oxides with gaseous magnesium |
| JP3196832B2 (ja) | 1998-05-15 | 2001-08-06 | 日本電気株式会社 | 固体電解コンデンサ及びその製造方法 |
| US6576038B1 (en) | 1998-05-22 | 2003-06-10 | Cabot Corporation | Method to agglomerate metal particles and metal particles having improved properties |
| TW430833B (en) | 1998-08-05 | 2001-04-21 | Showa Denko Kk | Niobium sintered body for capacitor and process for producing same |
| JP2000082639A (ja) | 1998-09-04 | 2000-03-21 | Nec Corp | Ｎｂコンデンサの製造方法 |
| DE19847012A1 (de) | 1998-10-13 | 2000-04-20 | Starck H C Gmbh Co Kg | Niobpulver und Verfahren zu dessen Herstellung |
| CA2360789C (en) | 1998-12-15 | 2008-03-18 | Showa Denko Kabushiki Kaisha | Niobium capacitor and method of manufacture thereof |
| US6515846B1 (en) * | 1999-02-08 | 2003-02-04 | H.C. Starck, Inc. | Capacitor substrates made of refractory metal nitrides |
| AU2571200A (en) | 1999-02-16 | 2000-09-04 | Showa Denko Kabushiki Kaisha | Niobium powder, niobium sintered body, capacitor comprised of the sintered body,and method for manufacturing the capacitor |
| US6212065B1 (en) | 1999-04-01 | 2001-04-03 | Vishay Sprague, Inc. | Capacitor pellet and lead assembly |
| US6558447B1 (en) * | 1999-05-05 | 2003-05-06 | H.C. Starck, Inc. | Metal powders produced by the reduction of the oxides with gaseous magnesium |
| DE60022655T2 (de) | 1999-07-15 | 2006-06-29 | Showa Denko K.K. | Niob pulver, gesinterter körper und daraus bestehender kondensator |
| US6261337B1 (en) | 1999-08-19 | 2001-07-17 | Prabhat Kumar | Low oxygen refractory metal powder for powder metallurgy |
| US6423110B1 (en) * | 1999-12-08 | 2002-07-23 | Showa Denko K.K. | Powder composition for capacitor and sintered body using the composition, and capacitor using the sintered body |
| IL151549A0 (en) | 2000-03-01 | 2003-04-10 | Cabot Corp | Nitrided valve metals and processes for making the same |
-
2001
- 2001-02-28 IL IL15154901A patent/IL151549A0/xx active IP Right Grant
- 2001-02-28 WO PCT/US2001/006449 patent/WO2001064374A2/en not_active Ceased
- 2001-02-28 CN CNB018087035A patent/CN100491022C/zh not_active Expired - Lifetime
- 2001-02-28 US US09/795,947 patent/US6679934B2/en not_active Expired - Lifetime
- 2001-02-28 HK HK03105383.1A patent/HK1053078A1/zh unknown
- 2001-02-28 AU AU2001239946A patent/AU2001239946B2/en not_active Ceased
- 2001-02-28 JP JP2001563259A patent/JP4261105B2/ja not_active Expired - Fee Related
- 2001-02-28 EP EP01914577A patent/EP1259346A2/en not_active Withdrawn
- 2001-02-28 AU AU3994601A patent/AU3994601A/xx active Pending
- 2001-02-28 BR BR0108905-6A patent/BR0108905A/pt unknown
- 2001-02-28 CA CA002401779A patent/CA2401779A1/en not_active Abandoned
- 2001-02-28 RU RU2002125943/02A patent/RU2246376C2/ru not_active IP Right Cessation
- 2001-02-28 MX MXPA02008557A patent/MXPA02008557A/es unknown
- 2001-02-28 CZ CZ2002-2943A patent/CZ305376B6/cs not_active IP Right Cessation
- 2001-02-28 KR KR1020027011458A patent/KR20020091109A/ko not_active Withdrawn
- 2001-03-01 TW TW090104725A patent/TW539585B/zh not_active IP Right Cessation
-
2002
- 2002-09-01 IL IL151549A patent/IL151549A/en not_active IP Right Cessation
-
2003
- 2003-11-25 US US10/721,215 patent/US7144546B2/en not_active Expired - Lifetime
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