ATE305352T1 - Verfahren zum pelletieren von metallteilchen und teilchen mit verbesserten eigenschaften - Google Patents

Verfahren zum pelletieren von metallteilchen und teilchen mit verbesserten eigenschaften

Info

Publication number
ATE305352T1
ATE305352T1 AT99925695T AT99925695T ATE305352T1 AT E305352 T1 ATE305352 T1 AT E305352T1 AT 99925695 T AT99925695 T AT 99925695T AT 99925695 T AT99925695 T AT 99925695T AT E305352 T1 ATE305352 T1 AT E305352T1
Authority
AT
Austria
Prior art keywords
particles
tantalum
pelleting
improved properties
cake
Prior art date
Application number
AT99925695T
Other languages
English (en)
Inventor
Prasad Rao
Original Assignee
Cabot Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cabot Corp filed Critical Cabot Corp
Application granted granted Critical
Publication of ATE305352T1 publication Critical patent/ATE305352T1/de

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/09—Mixtures of metallic powders
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • B22F1/148—Agglomerating
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/12—Metallic powder containing non-metallic particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Glanulating (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
AT99925695T 1998-05-22 1999-05-20 Verfahren zum pelletieren von metallteilchen und teilchen mit verbesserten eigenschaften ATE305352T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8660198P 1998-05-22 1998-05-22
PCT/US1999/011149 WO1999061184A1 (en) 1998-05-22 1999-05-20 Method to agglomerate metal particles and metal particles having improved properties

Publications (1)

Publication Number Publication Date
ATE305352T1 true ATE305352T1 (de) 2005-10-15

Family

ID=22199654

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99925695T ATE305352T1 (de) 1998-05-22 1999-05-20 Verfahren zum pelletieren von metallteilchen und teilchen mit verbesserten eigenschaften

Country Status (15)

Country Link
US (3) US6576038B1 (de)
EP (1) EP1087852B1 (de)
JP (1) JP2002516385A (de)
KR (1) KR20010052388A (de)
CN (1) CN1305399B (de)
AT (1) ATE305352T1 (de)
AU (1) AU746431B2 (de)
BR (1) BR9910661A (de)
CZ (1) CZ303300B6 (de)
DE (1) DE69927500T2 (de)
HU (1) HUP0102249A3 (de)
IL (1) IL139767A0 (de)
MX (1) MXPA00011481A (de)
RU (1) RU2226139C2 (de)
WO (1) WO1999061184A1 (de)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
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
JP3871824B2 (ja) 1999-02-03 2007-01-24 キャボットスーパーメタル株式会社 高容量コンデンサー用タンタル粉末
US6375704B1 (en) * 1999-05-12 2002-04-23 Cabot Corporation High capacitance niobium powders and electrolytic capacitor anodes
JP4261105B2 (ja) 2000-03-01 2009-04-30 キャボット コーポレイション 窒化バルブ金属およびその製造方法
JP4697832B2 (ja) * 2000-04-21 2011-06-08 昭和電工株式会社 ニオブ焼結体、その製造方法及びその焼結体を用いたコンデンサ
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
DE10030387A1 (de) * 2000-06-21 2002-01-03 Starck H C Gmbh Co Kg Kondensatorpulver
US6652619B2 (en) * 2000-08-10 2003-11-25 Showa Denko K.K. Niobium powder, sintered body thereof, and capacitor using the same
JP2002060803A (ja) * 2000-08-10 2002-02-28 Showa Kyabotto Super Metal Kk 電解コンデンサ用タンタル焼結体の製造方法
JP2002093666A (ja) * 2000-09-20 2002-03-29 Showa Denko Kk 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
WO2003032342A1 (en) 2001-10-01 2003-04-17 Showa Denko K.K. Tantalum sintered body and capacitor using the sintered body
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
US7655214B2 (en) * 2003-02-26 2010-02-02 Cabot Corporation Phase formation of oxygen reduced valve metal oxides and granulation methods
US7515397B2 (en) * 2003-05-19 2009-04-07 Cabot Corporation Methods of making a niobium metal oxide and oxygen reduced niobium oxides
US7142409B2 (en) * 2003-07-28 2006-11-28 Cabot Corporation Nitrided valve metal material and method of making same
DE112005001499T5 (de) * 2004-06-28 2007-05-10 Cabot Corp., Boston Flockenförmiges Tantal mit hoher Kapazität und Verfahren zu dessen Herstellung
US7147634B2 (en) 2005-05-12 2006-12-12 Orion Industries, Ltd. Electrosurgical electrode and method of manufacturing same
US8814861B2 (en) 2005-05-12 2014-08-26 Innovatech, Llc Electrosurgical electrode and method of manufacturing same
US20060269436A1 (en) * 2005-05-31 2006-11-30 Cabot Corporation Process for heat treating metal powder and products made from the same
CN100339172C (zh) * 2005-09-29 2007-09-26 宁夏东方钽业股份有限公司 球化造粒凝聚金属粉末的方法,金属粉末和电解电容器阳极
EP1928620B1 (de) * 2005-09-29 2020-03-18 Ningxia Orient Tantalum Industry Co., Ltd. Verfahren zum sphärischen granulieren und agglomerieren von metallteilchen
GB0622463D0 (en) 2006-11-10 2006-12-20 Avx Ltd Powder modification in the manufacture of solid state capacitor anodes
CN100577574C (zh) * 2007-08-25 2010-01-06 宁夏东方钽业股份有限公司 低价氧化铌或铌粉的制备方法
CA2661469A1 (en) * 2008-04-11 2009-10-11 Andre Foucault Leg rehabilitation apparatus
US20100085685A1 (en) * 2008-10-06 2010-04-08 Avx Corporation Capacitor Anode Formed From a Powder Containing Coarse Agglomerates and Fine Agglomerates
US8512422B2 (en) 2010-06-23 2013-08-20 Avx Corporation Solid electrolytic capacitor containing an improved manganese oxide electrolyte
US8619410B2 (en) 2010-06-23 2013-12-31 Avx Corporation Solid electrolytic capacitor for use in high voltage applications
US8687347B2 (en) 2011-01-12 2014-04-01 Avx Corporation Planar anode for use in a wet electrolytic capacitor
US9105401B2 (en) 2011-12-02 2015-08-11 Avx Corporation Wet electrolytic capacitor containing a gelled working electrolyte
CN102806345B (zh) * 2012-04-19 2014-07-09 潘伦桃 钽粉的造粒装置及造粒制造凝聚钽粉的方法
JP5933397B2 (ja) 2012-08-30 2016-06-08 エイヴィーエックス コーポレイション 固体電解コンデンサの製造方法および固体電解コンデンサ
GB2512486B (en) 2013-03-15 2018-07-18 Avx Corp Wet electrolytic capacitor
GB2512481B (en) 2013-03-15 2018-05-30 Avx Corp Wet electrolytic capacitor for use at high temperatures
GB2517019B (en) 2013-05-13 2018-08-29 Avx Corp Solid electrolytic capacitor containing conductive polymer particles
US9892862B2 (en) 2013-05-13 2018-02-13 Avx Corporation Solid electrolytic capacitor containing a pre-coat layer
US9472350B2 (en) 2013-05-13 2016-10-18 Avx Corporation Solid electrolytic capacitor containing a multi-layered adhesion coating
USRE48439E1 (en) 2013-09-06 2021-02-16 Greatbatch Ltd. High voltage tantalum anode and method of manufacture
US9312075B1 (en) 2013-09-06 2016-04-12 Greatbatch Ltd. High voltage tantalum anode and method of manufacture
US9183991B2 (en) 2013-09-16 2015-11-10 Avx Corporation Electro-polymerized coating for a wet electrolytic capacitor
US9165718B2 (en) 2013-09-16 2015-10-20 Avx Corporation Wet electrolytic capacitor containing a hydrogen protection layer
US10403444B2 (en) 2013-09-16 2019-09-03 Avx Corporation Wet electrolytic capacitor containing a composite coating
US9236193B2 (en) 2013-10-02 2016-01-12 Avx Corporation Solid electrolytic capacitor for use under high temperature and humidity conditions
CN104884195B (zh) * 2013-12-04 2017-10-27 宁夏东方钽业股份有限公司 一种超高比容钽粉末的团化方法及由该方法制备的钽粉
CA2958043A1 (en) * 2014-08-12 2016-02-18 Global Advanced Metals Usa, Inc. A method of making a capacitor grade powder and capacitor grade powder from said process
CN104493156B (zh) * 2014-12-12 2016-09-14 中国兵器科学研究院宁波分院 纳米钽粉的热处理方法
US10014108B2 (en) 2015-03-13 2018-07-03 Avx Corporation Low profile multi-anode assembly
US9928963B2 (en) 2015-03-13 2018-03-27 Avx Corporation Thermally conductive encapsulant material for a capacitor assembly
US9754730B2 (en) 2015-03-13 2017-09-05 Avx Corporation Low profile multi-anode assembly in cylindrical housing
US9870869B1 (en) 2016-06-28 2018-01-16 Avx Corporation Wet electrolytic capacitor
US9870868B1 (en) 2016-06-28 2018-01-16 Avx Corporation Wet electrolytic capacitor for use in a subcutaneous implantable cardioverter-defibrillator
US10315249B2 (en) * 2016-07-29 2019-06-11 United Technologies Corporation Abradable material feedstock and methods and apparatus for manufacture
US20180144874A1 (en) 2016-10-21 2018-05-24 Global Advanced Metals, Usa, Inc. Tantalum Powder, Anode, And Capacitor Including Same, And Manufacturing Methods Thereof
CN108273989B (zh) * 2017-12-22 2020-01-21 北京机科国创轻量化科学研究院有限公司 一种金属合金微细粉末防结块的高温热处理方法
US11534830B2 (en) * 2017-12-28 2022-12-27 Ningxia Orient Tantalum Industry Co., Ltd Tantalum powder and preparation method therefor
US20230395329A1 (en) * 2022-06-02 2023-12-07 Kemet Electronics Corporation Method of Producing a Tantalum Capacitor Anode

Family Cites Families (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1280512B (de) * 1958-09-19 1968-10-17 Siemens Ag Verfahren zum Herstellen von gepressten und gesinterten Werkstuecken aus nicht fliessendem Metallpulver oder Metallpulvergemisch
US3071463A (en) 1960-05-17 1963-01-01 Sylvania Electric Prod Method of producing sintered metal bodies
US3295951A (en) * 1965-02-02 1967-01-03 Nat Res Corp Production of metals
US3397057A (en) 1966-09-26 1968-08-13 Int Nickel Co Method for producing flowable metal powders
JPS5241465B1 (de) * 1967-10-25 1977-10-18
US3418106A (en) * 1968-01-31 1968-12-24 Fansteel Inc Refractory metal powder
US3473915A (en) * 1968-08-30 1969-10-21 Fansteel Inc Method of making tantalum metal powder
US3635693A (en) * 1969-01-27 1972-01-18 Starck Hermann C Fa Method of producing tantalum or niobium powder from compact bodies
US3992192A (en) * 1974-07-01 1976-11-16 Haig Vartanian Metal powder production
US4009007A (en) * 1975-07-14 1977-02-22 Fansteel Inc. Tantalum powder and method of making the same
US4017302A (en) * 1976-02-04 1977-04-12 Fansteel Inc. Tantalum metal powder
US4141719A (en) * 1977-05-31 1979-02-27 Fansteel Inc. Tantalum metal powder
US4149876A (en) * 1978-06-06 1979-04-17 Fansteel Inc. Process for producing tantalum and columbium powder
SE434958B (sv) 1980-12-08 1984-08-27 Bostroem Olle Forfarande och anordning for att pa en rorlig sugsintringsrost eller i en stationer eller rorlig sugsintringspanna astadkomma en charge med hog permeabilitet och stabil struktur
DE3130392C2 (de) * 1981-07-31 1985-10-17 Hermann C. Starck Berlin, 1000 Berlin Verfahren zur Herstellung reiner agglomerierter Ventilmetallpulver für Elektrolytkondensatoren, deren Verwendung und Verfahren zur Herstellung von Sinteranoden
DE3140248C2 (de) * 1981-10-09 1986-06-19 Hermann C. Starck Berlin, 1000 Berlin Verwendung von dotiertem Ventilmetallpulver für die Herstellung von Elektrolytkondensatoranoden
DE3330455A1 (de) * 1983-08-24 1985-03-14 GfE Gesellschaft für Elektrometallurgie mbH, 4000 Düsseldorf Verfahren zur herstellung von ventilmetallpulver fuer elektrolytkondensatoren und dergleichen
JPS60221365A (ja) * 1984-04-13 1985-11-06 住友化学工業株式会社 高強度炭化珪素焼結体の製造法
US4544403A (en) * 1984-11-30 1985-10-01 Fansteel Inc. High charge, low leakage tantalum powders
US4684399A (en) * 1986-03-04 1987-08-04 Cabot Corporation Tantalum powder process
US4722826A (en) * 1986-09-15 1988-02-02 Inco Alloys International, Inc. Production of water atomized powder metallurgy products
US4740238A (en) * 1987-03-26 1988-04-26 Fansteel Inc. Platelet-containing tantalum powders
US4940490A (en) * 1987-11-30 1990-07-10 Cabot Corporation Tantalum powder
US5580367A (en) * 1987-11-30 1996-12-03 Cabot Corporation Flaked tantalum powder and method of using same flaked tantalum powder
US5211741A (en) * 1987-11-30 1993-05-18 Cabot Corporation Flaked tantalum powder
SU1632624A1 (ru) * 1988-05-12 1991-03-07 Всесоюзный научно-исследовательский и проектный институт механической обработки полезных ископаемых "Механобр" Устройство дл переработки материалов
DE3820960A1 (de) * 1988-06-22 1989-12-28 Starck Hermann C Fa Feinkoernige hochreine erdsaeuremetallpulver, verfahren zu ihrer herstellung sowie deren verwendung
US5242481A (en) * 1989-06-26 1993-09-07 Cabot Corporation Method of making powders and products of tantalum and niobium
US5082491A (en) * 1989-09-28 1992-01-21 V Tech Corporation Tantalum powder with improved capacitor anode processing characteristics
US4968481A (en) * 1989-09-28 1990-11-06 V Tech Corporation Tantalum powder with improved capacitor anode processing characteristics
JP3105294B2 (ja) 1991-04-30 2000-10-30 昭和キャボットスーパーメタル株式会社 タンタル粉末の造粒方法
JPH086122B2 (ja) 1991-06-06 1996-01-24 昭和キャボットスーパーメタル株式会社 タンタル粉末の造粒方法
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
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
US5993513A (en) * 1996-04-05 1999-11-30 Cabot Corporation Method for controlling the oxygen content in valve metal materials
US5954856A (en) * 1996-04-25 1999-09-21 Cabot Corporation Method of making tantalum metal powder with controlled size distribution and products made therefrom
US6165623A (en) * 1996-11-07 2000-12-26 Cabot Corporation Niobium powders and niobium electrolytic capacitors
CZ301097B6 (cs) * 1997-02-19 2009-11-04 H.C. Starck Gmbh Tantalový prášek sestávající z aglomerátu, zpusob jeho výroby a z nej získané slinuté anody
AU6495398A (en) * 1997-02-19 1998-09-09 H.C. Starck Gmbh & Co. Kg Tantalum powder, method for producing same powder and sintered anodes obtained from it
FR2773666B1 (fr) 1998-01-19 2000-03-24 Galvelpor Sa Case de maternite destinee a recevoir une femelle et ses petits et un ou plusieurs tapis de sol destines a equiper ladite case
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
CN1073480C (zh) * 1998-05-08 2001-10-24 宁夏有色金属冶炼厂 团化钽粉的生产方法
US6576038B1 (en) * 1998-05-22 2003-06-10 Cabot Corporation Method to agglomerate metal particles and metal particles having improved properties
DE19847012A1 (de) * 1998-10-13 2000-04-20 Starck H C Gmbh Co Kg Niobpulver und Verfahren zu dessen Herstellung
RU2243856C2 (ru) * 1999-03-19 2005-01-10 Кабот Корпорейшн Получение порошков ниобия и других металлов размалыванием
US6558447B1 (en) * 1999-05-05 2003-05-06 H.C. Starck, Inc. Metal powders produced by the reduction of the oxides with gaseous magnesium
US6375704B1 (en) * 1999-05-12 2002-04-23 Cabot Corporation High capacitance niobium powders and electrolytic capacitor anodes
US6563695B1 (en) * 1999-11-16 2003-05-13 Cabot Supermetals K.K. Powdered tantalum, niobium, production process thereof, and porous sintered body and solid electrolytic capacitor using the powdered tantalum or niobium
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
JP4261105B2 (ja) * 2000-03-01 2009-04-30 キャボット コーポレイション 窒化バルブ金属およびその製造方法

Also Published As

Publication number Publication date
CN1305399B (zh) 2012-12-26
CZ20004317A3 (cs) 2001-07-11
US20020033072A1 (en) 2002-03-21
IL139767A0 (en) 2002-02-10
HUP0102249A2 (hu) 2001-10-28
BR9910661A (pt) 2001-12-11
AU746431B2 (en) 2002-05-02
US6479012B2 (en) 2002-11-12
DE69927500T2 (de) 2006-06-22
CZ303300B6 (cs) 2012-07-25
MXPA00011481A (es) 2004-12-03
HUP0102249A3 (en) 2001-11-28
AU4193299A (en) 1999-12-13
KR20010052388A (ko) 2001-06-25
EP1087852A1 (de) 2001-04-04
CN1305399A (zh) 2001-07-25
EP1087852B1 (de) 2005-09-28
WO1999061184A1 (en) 1999-12-02
US20030115985A1 (en) 2003-06-26
US6576038B1 (en) 2003-06-10
RU2226139C2 (ru) 2004-03-27
JP2002516385A (ja) 2002-06-04
WO1999061184A9 (en) 2000-04-13
DE69927500D1 (de) 2006-02-09

Similar Documents

Publication Publication Date Title
ATE305352T1 (de) Verfahren zum pelletieren von metallteilchen und teilchen mit verbesserten eigenschaften
RU2000132208A (ru) Способ агломерации металлических частиц и металлические частицы с улучшенными свойствами
SE9500473D0 (sv) Method of making metal composite materials
NZ506700A (en) Eprosartan mesylate to block angiotensin II receptors in the treatment of hypertension, congestive heart failure and renal failure
KR970030376A (ko) 소결된 ito 콤팩트의 제조방법
SE9803566D0 (sv) Iron powder compositions
Tolochko et al. Main relationships governing laser sintering of loose single-component metallic powders
Albano-Muller Filter elements of highly porous sintered metals
IL132291A0 (en) A method for production of tantalum powder with highly developed surface
JPH0565502A (ja) タンタル粉末の造粒方法
JPH04362101A (ja) タンタル粉末の造粒方法
DE4102430A1 (de) Verfahren zur herstellung feinporiger festkoerper mit hohem porenvolumen
Hanejko et al. Properties of Diffusion Bonded Alloys Processed to High Densities
JPS55149356A (en) Electrically conductive coating
Danninger et al. De-gassing during Sintering of Different Fe and Fe-0. 8% C Powder Compacts
Andersen et al. Development of higher performance blended elemental powder metallurgy Titanium alloys
JPH0726122B2 (ja) 粉末冶金用ステンレス鋼粉末
JP6536973B2 (ja) 土壌改良材の製造方法
Nishida et al. Densification of Iron Powder Compacts by Liquid Phase Sintering Using Fe--Ni--B Master Alloy Powder and Improvement of Their Mechanical Properties
GB1318902A (en) Method of making high-density sintered chromium-bearing articles
DE848707C (de) Verfahren zum Reduzieren von Erzen, die mit reduzierenden Stoffen zusammen zu Presslingen geformt sind, in OEfen aus keramischen Baustoffen
Yoshinaga et al. Fundamental study on granulation of sinter raw material mixture
JPS5693802A (en) Steel powder for powder metallurgy with excellent moldability and preparation thereof
Johnson Process for Producing Tungsten Heavy Alloy Sheet
Nath et al. Effect of compaction pressure on green properties of Al-45% Cu-Pb powder compacts

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties