GB1158686A - Improvements in or relating to a Process for the Internal Oxidation of Metal Powders - Google Patents

Improvements in or relating to a Process for the Internal Oxidation of Metal Powders

Info

Publication number
GB1158686A
GB1158686A GB36838/67A GB3683867A GB1158686A GB 1158686 A GB1158686 A GB 1158686A GB 36838/67 A GB36838/67 A GB 36838/67A GB 3683867 A GB3683867 A GB 3683867A GB 1158686 A GB1158686 A GB 1158686A
Authority
GB
United Kingdom
Prior art keywords
alloy powder
metal
mixture
oxide
alloy
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
GB36838/67A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1158686A publication Critical patent/GB1158686A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/12—Oxidising
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/32—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of elements or compounds in the liquid or solid state or in non-aqueous solution, e.g. sol-gel process
    • C01B13/322—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of elements or compounds in the liquid or solid state or in non-aqueous solution, e.g. sol-gel process of elements or compounds in the solid state
    • 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
    • C22C1/1078—Alloys containing non-metals by internal oxidation of material in solid state

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

1,158,686. Internal oxidation of alloys. SIEMENS A. G. Aug. 10, 1967 [Aug. 12, 1966], No. 36838/67. Heading C7D. An alloy powder, mixture of alloy powders, or a partially alloyed metal powder mixture formed of two or more metals of different nobilities is internally oxidized by oxygen derived from a mixture of the more or most noble metal and an oxide thereof, the alloy powder and metal/oxide mixture being in different but communicating zones of a heated reaction system. As shown, alloy powder 4 and metal/oxide mixture 6 are located in zones 3, 5 of tube 1, the zones being separated by apertured partition 2. The tube is exhausted or flushed out through pipe 7 and then rotated in a furnace. In other embodiments (a) the alloy powder is mechanically agitated during treatment, and (b) the alloy powder and metal/oxide mixture are in separate containers, oxygen being carried in an inert gas stream into the bottom of the alloy powder container thus creating a fluidized bed of alloy powder. Alloy powders which may be treated are Cu-Al, Cu-Ti, Ni-Al, Ni-Zr and Fe-Si. Suitable metal/oxide mixtures are Cu- Cu 2 O, Ni-NiO and Fe-Fe 2 O 3 .
GB36838/67A 1966-08-12 1967-08-10 Improvements in or relating to a Process for the Internal Oxidation of Metal Powders Expired GB1158686A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0105333 1966-08-12

Publications (1)

Publication Number Publication Date
GB1158686A true GB1158686A (en) 1969-07-16

Family

ID=7526488

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36838/67A Expired GB1158686A (en) 1966-08-12 1967-08-10 Improvements in or relating to a Process for the Internal Oxidation of Metal Powders

Country Status (3)

Country Link
US (1) US3488183A (en)
DE (1) DE1533377B1 (en)
GB (1) GB1158686A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787200A (en) * 1967-09-05 1974-01-22 Copper Range Co Metal powders for roll compacting
US3893844A (en) * 1972-01-13 1975-07-08 Scm Corp Dispersion strengthened metals
US3779714A (en) * 1972-01-13 1973-12-18 Scm Corp Dispersion strengthening of metals by internal oxidation
DE2929630C2 (en) * 1979-07-21 1983-12-15 Dornier System Gmbh, 7990 Friedrichshafen Process for the production of silver powder
US4462845A (en) * 1982-02-17 1984-07-31 Scm Corporation Oxygen-free dispersion-strengthened copper and process for making same
JPS61501097A (en) * 1984-01-31 1986-05-29 エスシ−エム　コ−ポレ−シヨン Dispersion strengthened copper modified with metal
JPS63199801A (en) * 1987-02-12 1988-08-18 Chisso Corp Stabilization treatment device for ferromagnetic metal powder
US4834939A (en) * 1988-05-02 1989-05-30 Hamilton Standard Controls, Inc. Composite silver base electrical contact material
CN102649155A (en) * 2012-03-09 2012-08-29 成都邦普合金材料有限公司 Method for preventing oxygenation of hard alloy mixture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317991A (en) * 1965-04-02 1967-05-09 Mallory & Co Inc P R Method of fabricating preoxidized silver-cadmium oxide electrical contacts

Also Published As

Publication number Publication date
DE1533377B1 (en) 1969-10-02
US3488183A (en) 1970-01-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees