sintered aluminous abrasive grains and method of producing

sintered aluminous abrasive grains and method of producing ...

Sintered aluminous abrasive grains and method of producing ...

Sintered aluminous abrasive grains and method of producing the same Feb 11, 1991 - Japan Abrasive Co., Ltd. Sintered aluminous abrasive grains having a density of at least 95% of theoretical density and having an alpha alumina crystal size of smaller than one micron.

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ep0571865a1 - sintered composite abrasive grains, method of ...

EP0571865A1 - Sintered composite abrasive grains, method of ...

The present invention relates to sintered composite abrasive grains based on an alpha -Al2O3 matrix and at least one sintered material, to a process for the production thereof and to the use thereof, the primary crystallite size of the alpha -Al2O3 being within the range from 0.1 to 1 mu m and the sintered material being cubic boron nitride and/or diamond.

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patents assigned to japan abrasive co., ltd. - justia patents ...

Patents Assigned to Japan Abrasive Co., Ltd. - Justia Patents ...

Abstract: Method for producing mono-crystalline alumina grains comprising fusing alna materials in the presence of halide to induce oxyhalide phase at grain boundaries, cooling and solidifying fused materials and separating oxyhalide phase by means of inorganic acid or alkali before or after crushing, and said alumina materials are composed of either aluminum oxides alone or aluminum oxides ...

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ep0491184b1 - sintered composite abrasive body, method of ...

EP0491184B1 - Sintered composite abrasive body, method of ...

Sintered composite abrasive body, method of preparation and use thereof Download PDF Info Publication number EP0491184B1. EP0491184B1 EP19910120027 EP91120027A ...

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ep0324513a1 - ceramic shaped article and methods of making ...

EP0324513A1 - Ceramic shaped article and methods of making ...

Japan Abrasive Co., Ltd. Sintered aluminous abrasive grains and method of producing the same EP0441640A3 (en) * 1990-02-09: 1993-02-03: Japan Abrasive Co., Ltd. Sintered aluminous abrasive grains and method of producing the same EP0464850A2 (en) * 1990-07-06: 1992-01-08: Norton Company: Coated abrasives and their use

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vitrified bonded sol gel sintered aluminous abrasive bodies

Vitrified bonded sol gel sintered aluminous abrasive bodies

A method of producing sintered sol gel aluminous abrasive particles having silica-enriched surfaces which comprises coating said particles with fumed silica and heat-treating the coated particles at a sufficient temperature and for a sufficient time to convert the silicon compound to silica and to fix the silica to the surfaces.

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advances in the grinding efficiency of sintered alumina abrasives

Advances in the Grinding Efficiency of Sintered Alumina Abrasives

Sample sintered by TS method with MgTiO3 seed and the addition of ZnF2/TiO2/SiO2 in the molar ratio of 5:7:5 obtained single particle compressive strength of 56.3 N, theoretical density of 99.4% ...

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us3387957a - microcrystalline sintered bauxite abrasive grain ...

US3387957A - Microcrystalline sintered bauxite abrasive grain ...

239000006061 abrasive grains Substances 0.000 title claims description 46 229910001570 bauxite Inorganic materials 0.000 title claims description 38 238000005296 abrasive Methods 0.000 claims description 16

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ep0571865a1 - sintered composite abrasive grains, method of ...

EP0571865A1 - Sintered composite abrasive grains, method of ...

The present invention relates to sintered composite abrasive grains based on an alpha -Al2O3 matrix and at least one sintered material, to a process for the production thereof and to the use thereof, the primary crystallite size of the alpha -Al2O3 being within the range from 0.1 to 1 mu m and the sintered material being cubic boron nitride and/or diamond.

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ep2981378a1 - sintered abrasive particles, method of making ...

EP2981378A1 - Sintered abrasive particles, method of making ...

The sintered abrasive particles have an average particle size of less than or equal to 500 microns, and are essentially free of seed particles and alpha alumina grain size modifiers. Abrasive articles comprising a binder and a plurality of the sintered abrasive particles are also disclosed.

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advances in the grinding efficiency of sintered alumina abrasives

Advances in the Grinding Efficiency of Sintered Alumina Abrasives

Sample sintered by TS method with MgTiO3 seed and the addition of ZnF2/TiO2/SiO2 in the molar ratio of 5:7:5 obtained single particle compressive strength of 56.3 N, theoretical density of 99.4% ...

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us3387957a - microcrystalline sintered bauxite abrasive grain ...

US3387957A - Microcrystalline sintered bauxite abrasive grain ...

239000006061 abrasive grains Substances 0.000 title claims description 46 229910001570 bauxite Inorganic materials 0.000 title claims description 38 238000005296 abrasive Methods 0.000 claims description 16

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method of producing alumina ceramic

Method of producing alumina ceramic

The present invention relates to a method for producing alumina ceramics with high hardness, designed for operation at long abrasive loads. Known methods of producing ceramic aluminum oxide: without the input of sintering additives by hot isostatic pressing (U.S. patent No. 5352643, SW 35/10; publ. 04.10.94).

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developments in alumina abrasives: transactions of the indian ...

Developments in Alumina Abrasives: Transactions of the Indian ...

However, since the 1890's synthetic abrasives like silicon carbide and fused aluminas have almost entirely replaced the above natural materials. Amongst the synthetic abrasives, alumina based or aluminous materials, both fused and sintered, are the most popular and commonly used. These abrasives are derived from bauxite and Bayer alumina.

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analysis of aluminum oxynitride alon (abral ) abrasive grains ...

Analysis of aluminum oxynitride AlON (Abral ) abrasive grains ...

oped and patented the technology for producing abrasive ma-terials from Al 2O 3, aluminum oxynitride type γ,aswellas metal nitrides from group IVb of the periodic table. In this case, it was suggested that abrasive grains produced using the sol-gel method with reactive sintering should be used. The high cost of the grains produced made it ...

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state of the art in production, properties and applications ...

State of the art in production, properties and applications ...

line sintered corundum abrasive grains, which constitute an important group of abrasives used in modern grinding tech-nology, was given. The most important stages in the develop-ment of sintered corundum grains production technology, from the 1960s to current developments (nanocrystalline sinteredcorundum)inthisfield,werepresentedinchronolog-

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