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1. (WO1984000030) ZIRCONIA-CONTAINING CERAMIC COMPOUND AND METHOD OF MAKING SAME
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1984/000030 International Application No.: PCT/AU1983/000080
Publication Date: 05.01.1984 International Filing Date: 20.06.1983
IPC:
C04B 35/48 (2006.01)
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01
based on oxides
48
based on zirconium or hafnium oxides or zirconates or hafnates
Applicants:
Inventors:
Priority Data:
null30.12.1899null
Title (EN) ZIRCONIA-CONTAINING CERAMIC COMPOUND AND METHOD OF MAKING SAME
(FR) COMPOSE CERAMIQUE CONTENANT DE LA ZIRCONE ET SON PROCEDE DE PRODUCTION
Abstract:
(EN) A ceramic material having good thermal shock resistance consists of a matrix of zircon within which there is a dispersion of zirconia particles having a bimodal particle size distribution. The zirconia phases have mean particle sizes of (a) less than 4 micrometres, and (b) from 4 to 25 micrometres, each being 2 to 20 per cent (preferably 10 per cent) by weight of the material. The zirconia particles are admixed with particulate zircon; the mixture is then moulded and fired at 1400 to 1700oC. Alternatively, the finer particles of the mixture may be produced in situ by solid state reaction of alumina and dissociated zircon at firing.
(FR) Un matériau céramique possédant une bonne résistance aux chocs thermiques se compose d"une matrice de zircone à l"intérieur de laquelle se trouve une dispersion de particules de zircone possédant une distribution bimodale de tailles de particules. Les phases de zircone possèdent des tailles moyennes de particules (a) inférieures à 4 micromètres et (b) de 4 à 25 micromètres, chacune étant de 2 à 20 % (de préférence 10 %) en poids du matériau. Les particules de zircone sont mélangées à du zircone particulaire; le mélange est ensuite moulé et cuit au four à une température comprise entre 1400 et 1700oC. D"une manière alternative, les particules les plus fines du mélange peuvent être produites in situ par une réaction à l"état solide entre l"alumine et le zircone dissociés au moment de la cuisson au four.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1983016035