GB1215404A - Improvements in or relating to refractory alloys containing a dispersed phase of thoria and in processes for their production - Google Patents

Improvements in or relating to refractory alloys containing a dispersed phase of thoria and in processes for their production

Info

Publication number
GB1215404A
GB1215404A GB1410268A GB1410268A GB1215404A GB 1215404 A GB1215404 A GB 1215404A GB 1410268 A GB1410268 A GB 1410268A GB 1410268 A GB1410268 A GB 1410268A GB 1215404 A GB1215404 A GB 1215404A
Authority
GB
United Kingdom
Prior art keywords
halide
tho
sintered
granules
dispersed
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
GB1410268A
Inventor
M E L Marty
P M Galmiche
A Hivert
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Publication of GB1215404A publication Critical patent/GB1215404A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

1,215,404. Process of forming sintered dispersed ThO 2 containing alloys. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES. March 22, 1968 [March 24, 1967], No.14102/68. Heading C7D. In a process of producing sintered alloys based on Ni and/or Co and/or Fe and containing Cr, preferably 5-30% by weight and dispersed ThO 2 preferably 1-10% by weight, the powders are mixed, compacted and then sintered above 700‹ C. in an enclosure containing a hydrogen atmosphere powdered Cr and a halide, other than a fluoride, which reacts to form gaseous chromium halide which diffuses Cr into the compact. The ThO 2 powder used is preferably formed by the pyrolysis of thorium acetylacetonate at 550‹ -900‹ C which gives ThO 2 with a maximum particle size of 0À1 micron. The gaseous chromous halide preferably the chloride or bromide is formed by reaction of the Cr with NH 4 Cl, NH 4 Br, Br or Br-Cl or I-Cl. Preferably Cr granules are first reacted with the halogen in H 2 to form granules with a core of Cr and a coating of Cr halide. These granules are then used in the sintering container to supply the Cr halide vapour. The powder mixture may also contain W, Mo, Nb, Ta, Ti, Zr, A1 and the sintered product may be hot rolled and then cold rolled.
GB1410268A 1967-03-24 1968-03-22 Improvements in or relating to refractory alloys containing a dispersed phase of thoria and in processes for their production Expired GB1215404A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR100318A FR1523488A (en) 1967-03-24 1967-03-24 Improvements in refractory dispersed phase thoria alloys and in the processes for their production

Publications (1)

Publication Number Publication Date
GB1215404A true GB1215404A (en) 1970-12-09

Family

ID=8627615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1410268A Expired GB1215404A (en) 1967-03-24 1968-03-22 Improvements in or relating to refractory alloys containing a dispersed phase of thoria and in processes for their production

Country Status (3)

Country Link
DE (1) DE1758032B1 (en)
FR (1) FR1523488A (en)
GB (1) GB1215404A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079949A1 (en) * 1998-05-04 2001-03-07 Colorado School Of Mines Porous metal-containing materials, method of manufacture and products incorporating or made from the materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079949A1 (en) * 1998-05-04 2001-03-07 Colorado School Of Mines Porous metal-containing materials, method of manufacture and products incorporating or made from the materials
EP1079949A4 (en) * 1998-05-04 2002-09-11 Colorado School Of Mines Porous metal-containing materials, method of manufacture and products incorporating or made from the materials

Also Published As

Publication number Publication date
FR1523488A (en) 1968-05-03
DE1758032B1 (en) 1971-08-26

Similar Documents

Publication Publication Date Title
GB1319913A (en) Cermet alloy composition
US3953556A (en) Method of preparing uranium nitride or uranium carbonitride bodies
GB1435140A (en) Method for producing high density steel powders
GB1163947A (en) Formation of Chromium Containing Coatings on Steel Strip
GB1215404A (en) Improvements in or relating to refractory alloys containing a dispersed phase of thoria and in processes for their production
GB1449978A (en) Refractory metal-containing bodies
US2678870A (en) Manufacture of refractory metal borides
US3479232A (en) Passivation of metals
GB1285098A (en) Improvements in method of making a dispersion strengthened alloy article
GB1313981A (en) High alloy steel powders and their consolidation into homogeneous tool steel
GB1105045A (en) Production of rigid shapes of refractory metals
GB1338182A (en) Process for the production of valve seating rings
GB1470280A (en) Superconducting articles of manufacture and method of producing same
GB990467A (en) Improvements in or relating to the manufacture of bodies from carbides or mixed carbides
GB1163967A (en) Stainless Steels and Process for their Manufacture
GB1138322A (en) Vapour diffusion coating
US2909808A (en) Process of producing powdered or granular metallic material
GB1350482A (en) Method of preparing metal alloy composite powders
US3766082A (en) Sintering of compacts of un,(u,pu)n, and pun
GB1349758A (en) Reactor and process for producing finely divided metal oxides
US2672399A (en) Trivalent compounds of titanium and method of making same
Radomysel'skii et al. Conditions of preparation of chromized iron powder by the method of diffusional saturation from solid chromium-containing packing materials (part 1)
GB1162882A (en) Improvements in Chromium-Containing Alloys of Improved Resistance to Oxidation and Nitrification
GB912636A (en) Method and apparatus for producing submicron metals
GB1258372A (en)