GB967136A - Cermet materials - Google Patents

Cermet materials

Info

Publication number
GB967136A
GB967136A GB32231/62A GB3223162A GB967136A GB 967136 A GB967136 A GB 967136A GB 32231/62 A GB32231/62 A GB 32231/62A GB 3223162 A GB3223162 A GB 3223162A GB 967136 A GB967136 A GB 967136A
Authority
GB
United Kingdom
Prior art keywords
carbide
sintered
metal
tube
powder
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
GB32231/62A
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 GB967136A publication Critical patent/GB967136A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02Compacting only
    • B22F3/08Compacting only by explosive forces
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/04Making non-ferrous alloys by powder metallurgy
    • C22C1/05Mixtures of metal powder with non-metallic powder
    • C22C1/058Mixtures of metal powder with non-metallic powder by reaction sintering (i.e. gasless reaction starting from a mixture of solid metal compounds)
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C29/00Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/067Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C32/00Non-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)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)

Abstract

<PICT:0967136/C6-C7/1> A sintered cermet comprising carbide particles such as titanium carbide, tungsten carbide, boron carbide or silicon carbide bonded by 0.01-1 part by weight of Al, Mg or Ti or mixtures of these, is formed by explosively compacting the powdered carbide and the metal in powdered or massive form in a tubular container and then sintering the compact above the melting point of the metal and below the temperature at which solid state sintering of the carbide occurs. As shown in Fig. 1, a powder mixture of the carbide and the metal, preferably finer than 200 mesh, is packed in a metal tube 1 which is sealed with metal plugs 3. A layer of detonating explosive 4 is wrapped around the tube 1 and the assembly is immersed in water where the explosive is detonated and the powder mixture is compacted. To form compacted tubes a metal tube is positioned concentrically within an outer metal tube and the powder is placed in the annulus between the two tubes, Fig. 2 (not shown). The explosive is again wrapped around the outside tube and the explosion is effected under water. In a further modification, Fig. 3 (not shown), only the carbide is packed into the container in powder form and the metal component is present as a sheath on the outer wall of the central tube and a liner for the inner wall of the outer tube so that the carbide powder is sandwiched between the metal component which penetrates into the carbide during compaction. The compact may be sintered in the assembly or removed prior to sintering. Examples are given of the formation of cermets of WC-Al sintered at 800 DEG C. in vacuum, SiC-Al sintered at 800 DEG C. in CO2, B4-CAl sintered at 800 DEG C. in CO2, TiC-Mg sintered at 700 DEG C. in air, TiC-Ti sintered at 1100 DEG C. with an acetylene torch. Specification 878,196 and U.S.A. Specification 3,093,521 are referred to.
GB32231/62A 1961-10-05 1962-08-22 Cermet materials Expired GB967136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US143125A US3178807A (en) 1961-10-05 1961-10-05 Cermet of aluminum with boron carbide or silicon carbide

Publications (1)

Publication Number Publication Date
GB967136A true GB967136A (en) 1964-08-19

Family

ID=22502711

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32231/62A Expired GB967136A (en) 1961-10-05 1962-08-22 Cermet materials

Country Status (4)

Country Link
US (1) US3178807A (en)
AT (1) AT250686B (en)
DE (1) DE1263576B (en)
GB (1) GB967136A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2783786C1 (en) * 2022-05-27 2022-11-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский авиационный институт (национальный исследовательский университет)" METHOD FOR OBTAINING LAYERED CERMET Al-Al2O3-Al4C3

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1229505B (en) * 1964-01-23 1966-12-01 Kempten Elektroschmelz Gmbh Process for the preparation of alkaline earth metal borides and carbides
US3459515A (en) * 1964-03-31 1969-08-05 Du Pont Cermets of aluminum with titanium carbide and titanium and zirconium borides
US3386812A (en) * 1965-12-23 1968-06-04 Atomic Energy Commission Usa Castable machine tool bit composition of boron carbide and nickel
US3765300A (en) * 1967-05-22 1973-10-16 Carborundum Co Dense carbide composite for armor and abrasives
US4104062A (en) * 1969-08-13 1978-08-01 Norton Company Process for making aluminum modified boron carbide and products resulting therefrom
US3718441A (en) * 1970-11-18 1973-02-27 Us Army Method for forming metal-filled ceramics of near theoretical density
GB1431891A (en) * 1972-03-22 1976-04-14 Foseco Int Protective coatings onto graphite articles
US4212621A (en) * 1979-06-21 1980-07-15 Michelotti Paul E Bladder molding
US4514268A (en) * 1982-12-30 1985-04-30 Corning Glass Works Electrolytic Al production with reaction sintered cermet component
US4605440A (en) * 1985-05-06 1986-08-12 The United States Of America As Represented By The United States Department Of Energy Boron-carbide-aluminum and boron-carbide-reactive metal cermets
DE3519710A1 (en) * 1985-06-01 1986-12-04 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe MOLDED BODY WITH HIGH HARDNESS AND HIGH TOUGHNESS FOR THE PROCESSING OF METALS, HARD METALS, CERAMICS AND GLASSES
US4655830A (en) * 1985-06-21 1987-04-07 Tomotsu Akashi High density compacts
US5298051A (en) * 1987-12-23 1994-03-29 Lanxide Technology Company, Lp Method of modifying ceramic composite bodies by a post-treatment process and articles produced thereby
US5271726A (en) * 1992-05-26 1993-12-21 E. I. Du Pont De Nemours And Company Apparatus for explosive shocking of materials
US5669059A (en) * 1994-01-19 1997-09-16 Alyn Corporation Metal matrix compositions and method of manufacturing thereof
US5980602A (en) * 1994-01-19 1999-11-09 Alyn Corporation Metal matrix composite
US5722033A (en) * 1994-01-19 1998-02-24 Alyn Corporation Fabrication methods for metal matrix composites
JP4304749B2 (en) 1998-02-24 2009-07-29 住友電気工業株式会社 Method for manufacturing member for semiconductor device
NL1016112C2 (en) * 2000-09-06 2002-03-07 Tno Gradually hard metal body such as punching tools and method for producing them.
US6835349B2 (en) * 2001-08-29 2004-12-28 The Dow Chemical Company Boron containing ceramic-aluminum metal composite and method to form the composite
US20060286883A1 (en) * 2005-01-24 2006-12-21 The Brown Idea Group, Llc Ballistics panel, structure, and associated methods
JP6245267B2 (en) * 2012-11-19 2017-12-13 リオ ティント アルカン インターナショナル リミテッド Additive for improving malleability of aluminum-boron carbide composite material
CN103572087B (en) * 2013-11-25 2015-12-09 武汉理工大学 The preparation method of boron carbide particles reinforced aluminum matrix composites

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE345541C (en) *
BE529357A (en) *
US1842103A (en) * 1930-07-03 1932-01-19 Eisler Electric Corp Refractory materiai
US2124509A (en) * 1935-07-15 1938-07-19 Philip M Mckenna Carbides of tantalum and like metals and method of producing the same
US2391752A (en) * 1942-05-30 1945-12-25 Stern Max Method for treating aluminum or aluminum alloy scrap
NL78631C (en) * 1951-09-14
US2746133A (en) * 1951-10-16 1956-05-22 Norton Co Process of making boron carbide containing aluminum, and products thereof
GB746867A (en) * 1952-12-27 1956-03-21 Sintercast Corp America Improved method and apparatus for producing refractory articles and articles so produced
US2943933A (en) * 1959-05-21 1960-07-05 Beryllium Corp Method and apparatus for making isotropic propertied beryllium sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2783786C1 (en) * 2022-05-27 2022-11-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский авиационный институт (национальный исследовательский университет)" METHOD FOR OBTAINING LAYERED CERMET Al-Al2O3-Al4C3

Also Published As

Publication number Publication date
DE1263576B (en) 1968-03-14
AT250686B (en) 1966-11-25
US3178807A (en) 1965-04-20

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