GB932461A - Improvements in or relating to the manufacture of sintered metallic bodies - Google Patents

Improvements in or relating to the manufacture of sintered metallic bodies

Info

Publication number
GB932461A
GB932461A GB3025260A GB3025260A GB932461A GB 932461 A GB932461 A GB 932461A GB 3025260 A GB3025260 A GB 3025260A GB 3025260 A GB3025260 A GB 3025260A GB 932461 A GB932461 A GB 932461A
Authority
GB
United Kingdom
Prior art keywords
metal
heated
oxide
refractory oxide
mixture
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
GB3025260A
Inventor
Mark Frederick Grimwade
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3025260A priority Critical patent/GB932461A/en
Publication of GB932461A publication Critical patent/GB932461A/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
    • 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

Landscapes

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

Abstract

A sintered body consisting mainly of one or more of the metals Ni, Co and Fe and containing a dispersed refractory oxide such as Al2O3, MgO, B6O, Cr2O3, is formed from a powdered mixture of the metal and/or metal oxide and/or metal compound decomposable by heat to the oxide, and a minor proportion, e.g. up to 3%, of the refractory oxide which is heated to at least 900 DEG C. in an inert or oxidizing atmosphere to form mixed oxides which are then heated in a reducing atmosphere prior to compacting and sintering. In the preferred method the metal powder or metal oxide is mixed with an aqueous solution of a water soluble salt which decomposes to the refractory oxide by heating, e.g. the nitrate, acetate, citrate or formate of aluminium, the slurry formed is dried, heated at 900-1400 DEG C. in an oxidizing atmosphere and the mixture of oxides is then crushed to minus 200 mesh. The powdered oxides are heated in hydrogen at 300-500 DEG C. to form the metal/refractory oxide mixture which is then hydrostatically pressed at 25-40 t.s.i. and sintered in H2, N2, argon or vacuum at 1000-1400 DEG C. The sintered compact is hot rolled, swaged, cold drawn and annealed to form wire.
GB3025260A 1960-09-01 1960-09-01 Improvements in or relating to the manufacture of sintered metallic bodies Expired GB932461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3025260A GB932461A (en) 1960-09-01 1960-09-01 Improvements in or relating to the manufacture of sintered metallic bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3025260A GB932461A (en) 1960-09-01 1960-09-01 Improvements in or relating to the manufacture of sintered metallic bodies

Publications (1)

Publication Number Publication Date
GB932461A true GB932461A (en) 1963-07-24

Family

ID=10304695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3025260A Expired GB932461A (en) 1960-09-01 1960-09-01 Improvements in or relating to the manufacture of sintered metallic bodies

Country Status (1)

Country Link
GB (1) GB932461A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386814A (en) * 1965-10-22 1968-06-04 Fansteel Metallurgical Corp Process for making chromium, cobalt and/or nickel containing powder having dispersed refractory metal oxide
US3434830A (en) * 1965-10-22 1969-03-25 Nicholas J Grant Dispersion strengthening of metals and alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386814A (en) * 1965-10-22 1968-06-04 Fansteel Metallurgical Corp Process for making chromium, cobalt and/or nickel containing powder having dispersed refractory metal oxide
US3434830A (en) * 1965-10-22 1969-03-25 Nicholas J Grant Dispersion strengthening of metals and alloys

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