GB1287571A - Ceramic materials - Google Patents

Ceramic materials

Info

Publication number
GB1287571A
GB1287571A GB37249/68A GB3724968A GB1287571A GB 1287571 A GB1287571 A GB 1287571A GB 37249/68 A GB37249/68 A GB 37249/68A GB 3724968 A GB3724968 A GB 3724968A GB 1287571 A GB1287571 A GB 1287571A
Authority
GB
United Kingdom
Prior art keywords
alumina
beta
cao
mixture
heating
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
GB37249/68A
Inventor
James Hugh Duncan
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.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB37249/68A priority Critical patent/GB1287571A/en
Publication of GB1287571A publication Critical patent/GB1287571A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/028—Beta-aluminas
    • 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
    • C04B35/10—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 aluminium oxide
    • C04B35/111—Fine ceramics
    • C04B35/113—Fine ceramics based on beta-aluminium oxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

1287571 Beta-alumina ceramics ENGLISH ELECTRIC CO Ltd 5 Nov 1969 [5 Aug 1968] 37249/68 Heading C1J Beta-alumina ceramic is obtained by mixing reactive alpha-alumina (defined) with NaOH and CaO and/or MgO, drying and powdering the mixture, shaping, heating to 1550-1700‹ C. at a rate to form beta-alumina, the mixture being isolated from any continuous supply of atmospheric CO 2 during drying and heating. The product should contain 5¢-6% of Na 2 O and 0À1-0À7% CaO. Up to 1% ZrSiO 4 can be added to the alpha-alumina.
GB37249/68A 1968-08-05 1968-08-05 Ceramic materials Expired GB1287571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB37249/68A GB1287571A (en) 1968-08-05 1968-08-05 Ceramic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37249/68A GB1287571A (en) 1968-08-05 1968-08-05 Ceramic materials

Publications (1)

Publication Number Publication Date
GB1287571A true GB1287571A (en) 1972-08-31

Family

ID=10394958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37249/68A Expired GB1287571A (en) 1968-08-05 1968-08-05 Ceramic materials

Country Status (1)

Country Link
GB (1) GB1287571A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001434A1 (en) * 1977-10-06 1979-04-18 General Electric Company Alumina-based ceramics for core materials
GB2131410A (en) * 1982-12-06 1984-06-20 Chloride Silent Power Ltd Beta-alumina material
CN102220038A (en) * 2011-04-19 2011-10-19 河北欧克精细化工股份有限公司 [Alpha]-alumina single-crystal slices, and preparation method thereof
CN114702307A (en) * 2022-01-14 2022-07-05 洛阳索莱特材料科技有限公司 Preparation method of compact alumina ceramic product

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001434A1 (en) * 1977-10-06 1979-04-18 General Electric Company Alumina-based ceramics for core materials
GB2131410A (en) * 1982-12-06 1984-06-20 Chloride Silent Power Ltd Beta-alumina material
CN102220038A (en) * 2011-04-19 2011-10-19 河北欧克精细化工股份有限公司 [Alpha]-alumina single-crystal slices, and preparation method thereof
CN114702307A (en) * 2022-01-14 2022-07-05 洛阳索莱特材料科技有限公司 Preparation method of compact alumina ceramic product

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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