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1. WO1991000254 - CERAMIC COMPOSITE MATERIAL AND METHOD OF OBTAINING IT

Publication Number WO/1991/000254
Publication Date 10.01.1991
International Application No. PCT/SU1989/000181
International Filing Date 30.06.1989
IPC
C04B 35/58 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
515based on non-oxides
58based on borides, nitrides or silicides
C04B 35/65 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
64Burning or sintering processes
65Reaction sintering of free metal- or free silicon-containing compositions
CPC
C04B 2235/3256
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
3256Molybdenum oxides, molybdates or oxide forming salts thereof, e.g. cadmium molybdate
C04B 2235/402
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
40Metallic constituents or additives not added as binding phase
402Aluminium
C04B 2235/404
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
40Metallic constituents or additives not added as binding phase
404Refractory metals
C04B 2235/428
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
428Silicon
C04B 2235/608
CCHEMISTRY; METALLURGY
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2235Aspects relating to ceramic starting mixtures or sintered ceramic products
60Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
608Green bodies or pre-forms with well-defined density
C04B 2235/661
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
66Specific sintering techniques, e.g. centrifugal sintering
661Multi-step sintering
Applicants
  • INSTITUT STRUKTURNOI MAKROKINETIKI AKADEMII NAUK SSSR [SU/SU]; Moskovskaya obl. p/o Chernogolovka, 142432, SU (AllExceptUS)
  • MERZHANOV, Alexandr Grigorievich [SU/SU]; SU (UsOnly)
  • STOLIN, Alexandr Moiseevich [SU/SU]; SU (UsOnly)
  • BUCHATSKY, Leonid Mikhailovich [SU/SU]; SU (UsOnly)
  • VEDENEEV, Sergei Vladimirovich [SU/SU]; SU (UsOnly)
Inventors
  • MERZHANOV, Alexandr Grigorievich; SU
  • STOLIN, Alexandr Moiseevich; SU
  • BUCHATSKY, Leonid Mikhailovich; SU
  • VEDENEEV, Sergei Vladimirovich; SU
Agents
  • THE USSR CHAMBER OF COMMERCE AND INDUSTRY; ul. Kuibysheva, 5/2 Moscow, 103735, SU
Priority Data
Publication Language Russian (RU)
Filing Language Russian (RU)
Designated States
Title
(EN) CERAMIC COMPOSITE MATERIAL AND METHOD OF OBTAINING IT
(FR) MATERIAU COMPOSITE CERAMIQUE ET SON PROCEDE D'OBTENTION
Abstract
(EN)
The invention relates to a method of production of a composite material containing molibdenum disilicide in the form of grains of a size of 20-60 microns. The method comprises the preparation of an exothermic mixture containing silicon, molibdenum oxide (VI), aluminium and molibdenum at the following ratio of the components in percent by weight: silicon 29-38; molibdenum oxide (VI) 7-42; aluminium 3-16; molibdenum 13-52; its thermal treatment in a burning regime with subsequent compacting of the obtained burnt product by means of at least double compression, at a deformation degree of 0.75-0.90 at each stage of compression, and at a temperature of 1,500-1,900°C.
(FR)
L'invention concerne un procédé de production d'un matériau céramique contenant du disiliciure de molybdène sous la forme de grains d'une taille comprise entre 20 et 60 microns. Le procédé comprend la préparation d'un mélange exothermique contenant du silicium, de l'oxyde de molybdène (VI), de l'aluminium et du molybdène selon le rapport suivant de composants en pourcentage pondéral: silicium 29 à 38, oxyde de molybdène (VI) 7 à 42, aluminium 3 à 16, molybdène 13 à 52, son traitement thermique dans un régime de combustion avec le compactage ultérieur du produit brûlé obtenu par au moins une double compression, à un degré de déformation compris entre 0,75 et 0,90 de chaque étape de compression, et à une température comprise entre 1500 et 1900°C.
Also published as
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