GB782997A - Ceramic substances derived from chromium sesquioxide - Google Patents

Ceramic substances derived from chromium sesquioxide

Info

Publication number
GB782997A
GB782997A GB27855A GB27855A GB782997A GB 782997 A GB782997 A GB 782997A GB 27855 A GB27855 A GB 27855A GB 27855 A GB27855 A GB 27855A GB 782997 A GB782997 A GB 782997A
Authority
GB
United Kingdom
Prior art keywords
chromium
atoms
sesquioxide
substances derived
chromium sesquioxide
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
GB27855A
Inventor
Willem Julianus Kramers
Douglas Rex Whittaker
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB27855A priority Critical patent/GB782997A/en
Publication of GB782997A publication Critical patent/GB782997A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/12—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on chromium oxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Ceramic Products (AREA)

Abstract

A mixture of chromium sesquioxide with chromium containing up to one-quarter the number of atoms relative to that of chromium in the sesquioxide is heated at 1500-1800 DEG C. in an inert atmosphere. The product preferably has Cr : O ratio of 1 : 1.2-1.4.ALSO:A ceramic substance is obtained by heating at 1500 DEG -1800 DEG C. in an inert atmosphere a mixture of chromium sisquioxide and metal powder in an amount of the latter such that the number of atoms is up to one quarter that of chromium atoms in the oxide. The product preferably has the ratio Cr : O 1 : 1,2-1,4, and it may be powdered and mixed with an organic binder or a binding metal, e.g., columbium, nickel or iron, prior to shaping and sintering.
GB27855A 1955-01-05 1955-01-05 Ceramic substances derived from chromium sesquioxide Expired GB782997A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB27855A GB782997A (en) 1955-01-05 1955-01-05 Ceramic substances derived from chromium sesquioxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27855A GB782997A (en) 1955-01-05 1955-01-05 Ceramic substances derived from chromium sesquioxide

Publications (1)

Publication Number Publication Date
GB782997A true GB782997A (en) 1957-09-18

Family

ID=9701544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27855A Expired GB782997A (en) 1955-01-05 1955-01-05 Ceramic substances derived from chromium sesquioxide

Country Status (1)

Country Link
GB (1) GB782997A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1103221B (en) * 1957-12-11 1961-03-23 Max Planck Inst Eisenforschung Process for the production of refractory, high temperature change and slag resistance exhibiting molded parts made of chromium oxide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1103221B (en) * 1957-12-11 1961-03-23 Max Planck Inst Eisenforschung Process for the production of refractory, high temperature change and slag resistance exhibiting molded parts made of chromium oxide

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