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GB952535A - Sintered cermet - Google Patents

Sintered cermet

Info

Publication number
GB952535A
GB952535A GB4371/62A GB437162A GB952535A GB 952535 A GB952535 A GB 952535A GB 4371/62 A GB4371/62 A GB 4371/62A GB 437162 A GB437162 A GB 437162A GB 952535 A GB952535 A GB 952535A
Authority
GB
United Kingdom
Prior art keywords
tungsten
volume
ceramic
sintered
melting point
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
GB4371/62A
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.)
Bendix Corp
Original Assignee
Bendix 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 Bendix Corp filed Critical Bendix Corp
Publication of GB952535A publication Critical patent/GB952535A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/97—Rocket nozzles
    • F02K9/974—Nozzle- linings; Ablative coatings

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

A sintered cermet consisting principally of a tungsten metal matrix contains 0.1-3% by weight of iron, nickel or cobalt based on the weight of tungsten, and a ceramic such as Al2O3, MgO, BeO, dispersed throught the matrix. The preferred cermet composition contains 50-90% by volume tungsten, 0.5-6% by volume Ni and 10-49% by volume of a ceramic and optionally 0.5-6% of a deoxidizer such as titanium. The powdered constituents are mixed together, hydrostatically pressed at 20,000 p.s.i. and sintered in hydrogen. The ceramic material should have a melting point below that of tungsten and should not form a low melting point eutectic with the tungsten.
GB4371/62A 1961-02-10 1962-02-05 Sintered cermet Expired GB952535A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88481A US3139672A (en) 1961-02-10 1961-02-10 Rocket nozzles and the like

Publications (1)

Publication Number Publication Date
GB952535A true GB952535A (en) 1964-03-18

Family

ID=22211626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4371/62A Expired GB952535A (en) 1961-02-10 1962-02-05 Sintered cermet

Country Status (3)

Country Link
US (1) US3139672A (en)
DE (1) DE1252906B (en)
GB (1) GB952535A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842439A1 (en) * 1988-12-16 1990-06-21 Krupp Widia Gmbh Hard cemented composite and process for the production thereof
JPH04502347A (en) * 1988-12-16 1992-04-23 クルップ・ヴィディア・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング Hard metal composite and its manufacturing method
US6711901B1 (en) * 2000-01-21 2004-03-30 Alliant Techsystems Inc. Rocket motor nozzle assemblies having vacuum plasma-sprayed refractory metal shell throat inserts, methods of making, and rocket motors including same
EP1248902B1 (en) * 2000-01-21 2005-04-13 Alliant Techsystems Inc. Rocket motor nozzle assembly comprising a refractory metal shell

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672426A (en) * 1950-12-14 1954-03-16 Mallory & Co Inc P R Metal-ceramic bodies and method of making
US2671955A (en) * 1950-12-14 1954-03-16 Mallory & Co Inc P R Composite metal-ceramic body and method of making the same
US2952903A (en) * 1957-11-12 1960-09-20 Washken Edward High temperature composition

Also Published As

Publication number Publication date
DE1252906B (en) 1967-10-26
US3139672A (en) 1964-07-07

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