GB1098443A - Powder metallurgy compositions - Google Patents

Powder metallurgy compositions

Info

Publication number
GB1098443A
GB1098443A GB6820/65A GB682065A GB1098443A GB 1098443 A GB1098443 A GB 1098443A GB 6820/65 A GB6820/65 A GB 6820/65A GB 682065 A GB682065 A GB 682065A GB 1098443 A GB1098443 A GB 1098443A
Authority
GB
United Kingdom
Prior art keywords
oxide
metal
component
powder
coating
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
Application number
GB6820/65A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1098443A publication Critical patent/GB1098443A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0026—Matrix based on Ni, Co, Cr or alloys thereof
    • 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
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • 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
    • C22C1/10—Alloys containing non-metals
    • C22C1/1026—Alloys containing non-metals starting from a solution or a suspension of (a) compound(s) of at least one of the alloy constituents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S75/00—Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
    • Y10S75/95—Consolidated metal powder compositions of >95% theoretical density, e.g. wrought
    • Y10S75/951—Oxide containing, e.g. dispersion strengthened
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]

Abstract

A body made by powder metallurgy comprises two mechanically inseparable components, the first being <TABS:1098443/C6-C7/1> with or without impurity amounts of S, C and O, the second being a refractory metal oxide having a free energy of formation (D F) at 1000 DEG C. greater than 98 Cals per gram atom of oxygen, a mean particle diameter (D) not greater than (0.5K+19) mm , where K is D F27 DEG c of the most stable oxide of any metal in the first component, D remaining in this range even after heating at 1205 DEG C. for two hours, the concentration of the second component being up to 5.6% by volume, 90% of the oxide particles having a diameter less than 3D and the body having a density of at least 99.5% of the theoretical. The metal particles may have an oxide coating thereon to the extent of 0.06A to 0.25A% based on the total composition, where A is the surface area of the powder in sq. metres per gramme, the oxide of the coating being an oxide of at least one of the metals of the composition. The body may be made by precipitating the refractory metal oxide and a hydrous, oxygen containing compound of the, or each, metal required in the metallic component, reducing the precipitate with a gas below 10(2.14 + 0.01k) DEG C., the resultant powder being consolidated below 1000 DEG C. to at least 99.5% of theoretical density.
GB6820/65A 1964-02-18 1965-02-17 Powder metallurgy compositions Expired GB1098443A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34560264A 1964-02-18 1964-02-18
US425060A US3317285A (en) 1964-02-18 1965-01-12 Composition comprising iron-group metal and particulate refractory metal oxide

Publications (1)

Publication Number Publication Date
GB1098443A true GB1098443A (en) 1968-01-10

Family

ID=26994473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6820/65A Expired GB1098443A (en) 1964-02-18 1965-02-17 Powder metallurgy compositions

Country Status (4)

Country Link
US (1) US3317285A (en)
BE (1) BE659867A (en)
DE (1) DE1483277A1 (en)
GB (1) GB1098443A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425822A (en) * 1966-04-19 1969-02-04 Fansteel Metallurgical Corp Process for producing dispersion-modified alloys of chromium and iron-group metals
US3489553A (en) * 1966-06-17 1970-01-13 Us Air Force Process for producing dispersion strengthened alloys
US3458306A (en) * 1966-09-27 1969-07-29 Chevron Res Preparation of metals and metal alloys
US3526498A (en) * 1966-12-23 1970-09-01 Sherritt Gordon Mines Ltd Production of nickel-thoria powders
US3479180A (en) * 1967-05-24 1969-11-18 Fansteel Metallurgical Corp Process for making chromium alloys of dispersion-modified iron-group metals,and product
US3515523A (en) * 1968-03-22 1970-06-02 Onera (Off Nat Aerospatiale) Refractory alloys containing a dispersed phase of thoria and in processes for their production
US3716357A (en) * 1969-04-03 1973-02-13 Sherritt Gordon Mines Ltd Preparation of thoriated nickel-chromium alloy powder
US3765867A (en) * 1969-04-03 1973-10-16 Sherritt Gordon Mines Ltd Preparation of thoriated nickel-chromium alloy powder
US3660049A (en) * 1969-08-27 1972-05-02 Int Nickel Co Dispersion strengthened electrical heating alloys by powder metallurgy
JPS54113097A (en) * 1978-01-27 1979-09-04 Victor Co Of Japan Ltd Cermet type magnetic substance
JPH05174852A (en) * 1991-12-17 1993-07-13 Yoshida Kogyo Kk <Ykk> Conductive connecting material for solid electrolyte fuel cell
US7520947B2 (en) * 2003-05-23 2009-04-21 Ati Properties, Inc. Cobalt alloys, methods of making cobalt alloys, and implants and articles of manufacture made therefrom
DE102008009133B4 (en) * 2008-02-06 2012-04-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the production of metal powders and metal powder produced in this way

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019103A (en) * 1957-11-04 1962-01-30 Du Pont Process for producing sintered metals with dispersed oxides
US2972529A (en) * 1958-05-12 1961-02-21 Du Pont Metal oxide-metal composition
US3179515A (en) * 1960-04-27 1965-04-20 Grant Dispersion strengthened metals
US3152399A (en) * 1963-07-29 1964-10-13 Gen Electric Power-operated slicing knife having fluid flow control means

Also Published As

Publication number Publication date
US3317285A (en) 1967-05-02
BE659867A (en) 1965-06-16
DE1483277A1 (en) 1969-03-06

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