GB935667A - Improvements in dispersion strengthened metals and methods of producing such metals - Google Patents

Improvements in dispersion strengthened metals and methods of producing such metals

Info

Publication number
GB935667A
GB935667A GB14792/61A GB1479261A GB935667A GB 935667 A GB935667 A GB 935667A GB 14792/61 A GB14792/61 A GB 14792/61A GB 1479261 A GB1479261 A GB 1479261A GB 935667 A GB935667 A GB 935667A
Authority
GB
United Kingdom
Prior art keywords
al2o3
metal
particle size
sintered
metals
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
GB14792/61A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB935667A publication Critical patent/GB935667A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

A dispersion strengthened sintered metal or alloy is formed from a powder mixture of a ductile matrix metal powder having a particle size up to 20 micron and 1-15% by volume of a stable refractory oxide with a particle size not exceeding 0.3 microns and which is 30 to 250 times smaller than the average particle size of the matrix metal powder, the powder mixture being pressed and sintered below the melting temperature of the metal matrix and finally fabricated, preferably by extrusion into a dense body. The matrix metal may be Cu, Ag, Au, Fe, Ni, Co, Pt, Pd, Rh, Ir, Ru and alloys based on these and the dispensed oxide phase may be Al2O3, SiO2, MgO, ZrO2, ThO2, BeO, CeO2 or TiO2. The constituent powders are dry mixed, reduced in hydrogen at 260-300 DEG C. and then compacted at 10-35 tons/sq. inch, preferably hydrostatically to a green density of 60-80%. Sintering is effected in hydrogen, inert atmosphere or vacuum, and the compact is sheathed in a ductile metal and hot extruded at 50-100 tons/sq. inch at an extrusion ratio of 14 : 1 to 29 : 1. Examples are given of the production of Cu/Al2O3 compacts sintered at 900 DEG /1000 DEG C., Fe/Al2O3, FeO/MgO, Ni/Al2O3 and also of several alloys including 90% Fe, 10% Mo or W and 90% Ni, 10% Mo or W.
GB14792/61A 1960-04-27 1961-04-24 Improvements in dispersion strengthened metals and methods of producing such metals Expired GB935667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24971A US3069759A (en) 1960-04-27 1960-04-27 Production of dispersion strengthened metals

Publications (1)

Publication Number Publication Date
GB935667A true GB935667A (en) 1963-09-04

Family

ID=21823327

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14792/61A Expired GB935667A (en) 1960-04-27 1961-04-24 Improvements in dispersion strengthened metals and methods of producing such metals

Country Status (3)

Country Link
US (1) US3069759A (en)
GB (1) GB935667A (en)
SE (1) SE317517B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863514A (en) * 1985-09-11 1989-09-05 Degussa Atiengesellschaft Material for facing denture

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180742A (en) * 1961-06-27 1965-04-27 Dwight G Bennett Elevated temperature resistant ceramic structural adhesives
US3176386A (en) * 1961-10-26 1965-04-06 Grant Dispersion strengthening of metals
US3221853A (en) * 1962-08-29 1965-12-07 Raybestos Manhattan Inc Friction devices
GB1114769A (en) * 1965-02-09 1968-05-22 English Electric Co Ltd Dispersion-strengthened metals or alloys
US3922180A (en) * 1970-04-01 1975-11-25 Bell Telephone Labor Inc Method for oxidation-hardening metal alloy compositions, and compositions and structures therefrom
US4038216A (en) * 1974-06-24 1977-07-26 Massachusetts Institute Of Technology Material and method of making secondary-electron emitters
US4312915A (en) * 1978-01-30 1982-01-26 Massachusetts Institute Of Technology Cermet film selective black absorber
US4442166A (en) * 1979-11-15 1984-04-10 Massachusetts Institute Of Technology Cermet film selective-black absorber
US4374086A (en) * 1981-04-27 1983-02-15 The United States Of America As Represented By The Secretary Of The Navy Gold based material for electrical contact materials
JPH0610281B2 (en) * 1983-05-10 1994-02-09 トヨタ自動車株式会社 Ceramic-metal composite fine powder
US5004498A (en) * 1988-10-13 1991-04-02 Kabushiki Kaisha Toshiba Dispersion strengthened copper alloy and a method of manufacturing the same
US5624475A (en) * 1994-12-02 1997-04-29 Scm Metal Products, Inc. Copper based neutron absorbing material for nuclear waste containers and method for making same
DE19847987C2 (en) * 1998-10-17 2001-06-13 Xcellsis Gmbh Method for producing a device for producing hydrogen and device for producing hydrogen
US20060086441A1 (en) 2004-10-27 2006-04-27 University Of Cincinnati Particle reinforced noble metal matrix composite and method of making same
KR101226174B1 (en) * 2006-10-27 2013-01-24 나노텍 메탈스, 인코포레이티드 Process for manufacturing a nano aluminum/alumina metal matrix composite
CN102796912B (en) * 2012-08-24 2014-07-16 国家电网公司 Preparation method of Al2O3 dispersion strengthened copper alloy bar
CN105506329B (en) * 2015-12-09 2017-05-10 兰溪市金铎金属材料科技有限公司 Preparation method for Cu-Al2O3 nano dispersion strengthened alloy with high Al2O3 concentration
CN106834870B (en) * 2017-02-15 2018-05-11 江苏省海洋资源开发研究院(连云港) Ni-Al2O3Composite material near-net-shape method
CN114193024B (en) * 2021-11-16 2022-12-09 西安理工大学 Reinforced copper-based flux-cored wire and method for strengthening surface of low-carbon steel
CN114799155B (en) * 2022-03-30 2024-06-07 河南科技大学 Preparation method of ceramic particle reinforced refractory high-entropy alloy

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840891A (en) * 1955-01-04 1958-07-01 John S Nachtman High temperature structural material and method of producing same
US2823988A (en) * 1955-09-15 1958-02-18 Sintercast Corp America Composite matter
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863514A (en) * 1985-09-11 1989-09-05 Degussa Atiengesellschaft Material for facing denture

Also Published As

Publication number Publication date
US3069759A (en) 1962-12-25
SE317517B (en) 1969-11-17

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