WO1998019811A1 - Niobium powders and niobium electrolytic capacitors - Google Patents
Niobium powders and niobium electrolytic capacitors Download PDFInfo
- Publication number
- WO1998019811A1 WO1998019811A1 PCT/US1997/019949 US9719949W WO9819811A1 WO 1998019811 A1 WO1998019811 A1 WO 1998019811A1 US 9719949 W US9719949 W US 9719949W WO 9819811 A1 WO9819811 A1 WO 9819811A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- powder
- niobium
- niobium powder
- ppm
- capacitor
- Prior art date
Links
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 title claims abstract description 178
- 239000000843 powder Substances 0.000 title claims abstract description 103
- 239000010955 niobium Substances 0.000 title claims abstract description 70
- 229910052758 niobium Inorganic materials 0.000 title claims abstract description 67
- 239000003990 capacitor Substances 0.000 title claims abstract description 53
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000001301 oxygen Substances 0.000 claims abstract description 45
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 23
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 27
- 229910052698 phosphorus Inorganic materials 0.000 claims description 27
- 239000011574 phosphorus Substances 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 10
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 5
- 229910000484 niobium oxide Inorganic materials 0.000 claims description 3
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims 5
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims 3
- 238000010438 heat treatment Methods 0.000 description 21
- 239000000463 material Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 11
- 238000003801 milling Methods 0.000 description 11
- 239000001257 hydrogen Substances 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 238000005245 sintering Methods 0.000 description 10
- 229910052715 tantalum Inorganic materials 0.000 description 10
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000002048 anodisation reaction Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000012887 quadratic function Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910017673 NH4PF6 Inorganic materials 0.000 description 1
- PYLYNBWPKVWXJC-UHFFFAOYSA-N [Nb].[Pb] Chemical compound [Nb].[Pb] PYLYNBWPKVWXJC-UHFFFAOYSA-N 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- GINJFDRNADDBIN-FXQIFTODSA-N bilanafos Chemical compound OC(=O)[C@H](C)NC(=O)[C@H](C)NC(=O)[C@@H](N)CCP(C)(O)=O GINJFDRNADDBIN-FXQIFTODSA-N 0.000 description 1
- 238000009125 cardiac resynchronization therapy Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004845 hydriding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 150000002739 metals Chemical class 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000003340 retarding agent Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/052—Sintered electrodes
- H01G9/0525—Powder therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EEP199900189A EE9900189A (en) | 1996-11-07 | 1997-11-05 | Niobium powder, a capacitor therefor, and a method for reducing the leakage current of a niobium anode |
IL12983297A IL129832A0 (en) | 1996-11-07 | 1997-11-05 | Niobium powders and niobium electrolytic capacitors |
EP97946465A EP0946323B2 (en) | 1996-11-07 | 1997-11-05 | Niobium powders and niobium electrolytic capacitors |
AU51627/98A AU5162798A (en) | 1996-11-07 | 1997-11-05 | Niobium powders and niobium electrolytic capacitors |
DE69725880T DE69725880T3 (en) | 1996-11-07 | 1997-11-05 | NIOBIUM POWDER AND THIS USING ELECTROLYTIC CONDENSATE |
CA002271780A CA2271780A1 (en) | 1996-11-07 | 1997-11-05 | Niobium powders and niobium electrolytic capacitors |
BR9712906-2A BR9712906A (en) | 1996-11-07 | 1997-11-05 | Niobium potentiometers and niobium electrolytic capacitors |
JP52165598A JP4213222B2 (en) | 1996-11-07 | 1997-11-05 | Niobium powder and niobium electrolytic capacitor |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2956196P | 1996-11-07 | 1996-11-07 | |
US60/029,561 | 1996-11-07 | ||
US08/962,830 | 1997-11-03 | ||
US08/962,830 US6165623A (en) | 1996-11-07 | 1997-11-03 | Niobium powders and niobium electrolytic capacitors |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998019811A1 true WO1998019811A1 (en) | 1998-05-14 |
Family
ID=26705079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/019949 WO1998019811A1 (en) | 1996-11-07 | 1997-11-05 | Niobium powders and niobium electrolytic capacitors |
Country Status (12)
Country | Link |
---|---|
US (2) | US6165623A (en) |
EP (1) | EP0946323B2 (en) |
JP (1) | JP4213222B2 (en) |
AU (1) | AU5162798A (en) |
BR (1) | BR9712906A (en) |
CA (1) | CA2271780A1 (en) |
CZ (1) | CZ295984B6 (en) |
DE (1) | DE69725880T3 (en) |
EE (1) | EE9900189A (en) |
IL (1) | IL129832A0 (en) |
PT (1) | PT946323E (en) |
WO (1) | WO1998019811A1 (en) |
Cited By (46)
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US6115235A (en) * | 1997-02-28 | 2000-09-05 | Showa Denko Kabushiki Kaisha | Capacitor |
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JP2002093666A (en) * | 2000-09-20 | 2002-03-29 | Showa Denko Kk | Niobium powder, sintered compact using the same and capacitor using the compact |
US6402066B1 (en) | 1999-03-19 | 2002-06-11 | Cabot Corporation | Method of making niobium and other metal powders |
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 |
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US6430026B1 (en) | 1999-06-09 | 2002-08-06 | Showa Denko K.K. | Electrode material for capacitors and capacitor using the same |
JP2002525847A (en) * | 1998-09-10 | 2002-08-13 | エイチ・シー・スタルク・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Paste for producing sintered refractory metal layers, especially earth metal electrolytic capacitors or anodes |
US6436268B1 (en) | 2000-08-02 | 2002-08-20 | Kemet Electronics Corporation | Non-aqueous electrolytes for anodizing |
US6444008B1 (en) | 1998-03-19 | 2002-09-03 | Cabot Corporation | Paint and coating compositions containing tantalum and/or niobium powders |
US6529367B1 (en) | 1998-12-15 | 2003-03-04 | Showa Denko Kabushiki Kaisha | Niobium capacitor and method of manufacture thereof |
US6540810B2 (en) | 2000-04-21 | 2003-04-01 | Showa Denko Kabushiki Kaisha | Niobium powder for capacitor, sintered body using the powder and capacitor using the same |
US6558447B1 (en) | 1999-05-05 | 2003-05-06 | H.C. Starck, Inc. | Metal powders produced by the reduction of the oxides with gaseous magnesium |
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US6821314B1 (en) | 1999-11-09 | 2004-11-23 | H. C. Starck Gmbh | Capacitor powder |
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US7099143B1 (en) | 2005-05-24 | 2006-08-29 | Avx Corporation | Wet electrolytic capacitors |
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Also Published As
Publication number | Publication date |
---|---|
JP4213222B2 (en) | 2009-01-21 |
IL129832A0 (en) | 2000-02-29 |
US6165623A (en) | 2000-12-26 |
DE69725880T3 (en) | 2012-01-19 |
BR9712906A (en) | 2002-01-02 |
CA2271780A1 (en) | 1998-05-14 |
EE9900189A (en) | 1999-12-15 |
AU5162798A (en) | 1998-05-29 |
PT946323E (en) | 2004-03-31 |
EP0946323A1 (en) | 1999-10-06 |
CZ295984B6 (en) | 2005-12-14 |
EP0946323B1 (en) | 2003-10-29 |
US6420043B1 (en) | 2002-07-16 |
JP2002507247A (en) | 2002-03-05 |
CZ162899A3 (en) | 2000-05-17 |
DE69725880D1 (en) | 2003-12-04 |
DE69725880T2 (en) | 2004-05-13 |
EP0946323B2 (en) | 2011-06-15 |
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