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WO2002043905A3 - A method and apparatus for the production of metal powder granules by electric discharge - Google Patents

A method and apparatus for the production of metal powder granules by electric discharge Download PDF

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Publication number
WO2002043905A3
WO2002043905A3 PCT/IL2001/001102 IL0101102W WO0243905A3 WO 2002043905 A3 WO2002043905 A3 WO 2002043905A3 IL 0101102 W IL0101102 W IL 0101102W WO 0243905 A3 WO0243905 A3 WO 0243905A3
Authority
WO
WIPO (PCT)
Prior art keywords
metal
metal source
electric discharge
production
vapor
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.)
Ceased
Application number
PCT/IL2001/001102
Other languages
French (fr)
Other versions
WO2002043905A2 (en
Inventor
Moisei Esterlis
Leonid Avrukh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mpi Metal Powders Industries Ltd
M P I METAL POWDERS IND Ltd
Original Assignee
Mpi Metal Powders Industries Ltd
M P I METAL POWDERS IND Ltd
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 Mpi Metal Powders Industries Ltd, M P I METAL POWDERS IND Ltd filed Critical Mpi Metal Powders Industries Ltd
Priority to AU2002221014A priority Critical patent/AU2002221014A1/en
Publication of WO2002043905A2 publication Critical patent/WO2002043905A2/en
Publication of WO2002043905A3 publication Critical patent/WO2002043905A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/223—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating specially adapted for coating particles
    • 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
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/065—Spherical particles
    • B22F1/0655—Hollow particles
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/0005—Separation of the coating from the substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/32431—Constructional details of the reactor
    • H01J37/32715—Workpiece holder
    • H01J37/32724—Temperature
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/086—Cooling after atomisation
    • B22F2009/0864—Cooling after atomisation by oil, other non-aqueous fluid or fluid-bed cooling
    • 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
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

Method for the manufacture of metal granules, in which a metal source (14) is placed in a vacuum chamber (1). A process anode (17) and a means for initiating discharge from the metal source are provided in the chamber. An electric discharge is generated between the discharge initiation means and the metal source as the cathode, in order to raise the surface temperature of the metal source above its boiling point and to generate metal vapor and metallic plasma. A flow of current is generated between the process anode and the metal source through the metallic plasma, whereby to continue to generate metal vapor from the cathode. The vapor is allowed to condense into spherical molten drops and the molten drops to solidify to spherical particles, which are then withdrawn from the vacuum chamber.
PCT/IL2001/001102 2000-12-01 2001-11-29 A method and apparatus for the production of metal powder granules by electric discharge Ceased WO2002043905A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002221014A AU2002221014A1 (en) 2000-12-01 2001-11-29 A method and apparatus for the production of metal powder granules by electric discharge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL140034 2000-12-01
IL14003400A IL140034A0 (en) 2000-12-01 2000-12-01 Method and apparatus for the production of metal powder granules

Publications (2)

Publication Number Publication Date
WO2002043905A2 WO2002043905A2 (en) 2002-06-06
WO2002043905A3 true WO2002043905A3 (en) 2003-01-23

Family

ID=11074868

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2001/001102 Ceased WO2002043905A2 (en) 2000-12-01 2001-11-29 A method and apparatus for the production of metal powder granules by electric discharge

Country Status (3)

Country Link
AU (1) AU2002221014A1 (en)
IL (1) IL140034A0 (en)
WO (1) WO2002043905A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090274592A1 (en) * 2008-05-01 2009-11-05 Airlnspace B.V. Plasma-based air purification device including carbon pre-filter and/or self-cleaning electrodes
RU2395369C2 (en) * 2008-09-18 2010-07-27 Институт проблем машиноведения Российской академии наук Procedure for production of fine dispersed powders
WO2010096474A1 (en) * 2009-02-17 2010-08-26 Tood Robert H System and method for producing ultrafine metal particles suspended in aqueous medium
DE102009048397A1 (en) * 2009-10-06 2011-04-07 Plasmatreat Gmbh Atmospheric pressure plasma process for producing surface modified particles and coatings
US9381588B2 (en) 2013-03-08 2016-07-05 Lotus BioEFx, LLC Multi-metal particle generator and method
JP6872606B2 (en) * 2016-06-10 2021-05-19 パリ シアンス エ レットル‐カルティエ ラタン Methods and Systems for Plasma Inductively Selective Extraction and Recovery of Species from Matrix
CN111195732A (en) * 2018-11-16 2020-05-26 安世亚太科技股份有限公司 A system and method for preparing metal powder
CN111558726B (en) * 2019-02-14 2025-03-07 安世亚太科技股份有限公司 A system and method for preparing metal powder with controllable microstructure
CN110961646B (en) * 2019-11-07 2023-08-04 深圳航科新材料有限公司 Metal powder and method for producing the same
CN111230134B (en) * 2020-03-10 2023-08-04 深圳航科新材料有限公司 Multi-element alloy powder and rapid preparation method thereof
EP4541485A1 (en) * 2023-10-20 2025-04-23 Siemens Aktiengesellschaft System for producing of fine spherical metallic powder with electric arc melting a consumable electrode
CN119772166B (en) * 2024-12-31 2025-08-05 西南科技大学 Preparation method of metal hollow micro-nanostructure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB441921A (en) * 1933-06-05 1936-01-27 Risaburo Torikai Method of manufacturing fine powder
US3192064A (en) * 1961-11-22 1965-06-29 Nat Res Corp Coating
US3827953A (en) * 1969-08-19 1974-08-06 Massachusetts Inst Technology Process for coating refractory metals with oxidation-resistant metals
US3963812A (en) * 1975-01-30 1976-06-15 Schlienger, Inc. Method and apparatus for making high purity metallic powder
WO1997034024A1 (en) * 1996-03-13 1997-09-18 Robert Bosch Gmbh Means for vacuum coating of bulk material
US5879518A (en) * 1997-03-28 1999-03-09 Kuehnle; Manfred R. Method and apparatus for producing small particles of consistent size shape and structure
WO2000005017A1 (en) * 1998-07-21 2000-02-03 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for producing material vapour

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB441921A (en) * 1933-06-05 1936-01-27 Risaburo Torikai Method of manufacturing fine powder
US3192064A (en) * 1961-11-22 1965-06-29 Nat Res Corp Coating
US3827953A (en) * 1969-08-19 1974-08-06 Massachusetts Inst Technology Process for coating refractory metals with oxidation-resistant metals
US3963812A (en) * 1975-01-30 1976-06-15 Schlienger, Inc. Method and apparatus for making high purity metallic powder
WO1997034024A1 (en) * 1996-03-13 1997-09-18 Robert Bosch Gmbh Means for vacuum coating of bulk material
US5879518A (en) * 1997-03-28 1999-03-09 Kuehnle; Manfred R. Method and apparatus for producing small particles of consistent size shape and structure
WO2000005017A1 (en) * 1998-07-21 2000-02-03 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for producing material vapour

Also Published As

Publication number Publication date
AU2002221014A1 (en) 2002-06-11
IL140034A0 (en) 2002-02-10
WO2002043905A2 (en) 2002-06-06

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