Ceramic cutting tool material - comprising alumina with added rare earth metal or yttrium oxide, chromium and magnesium oxides (AT 15.6.82)
Ceramic cutting material having a mean grain size of 1-2 micron consists of 0-20 (0.25-17) pref. 8-12% rare earth metal oxide or yttrium oxide; 0-20 (0.25-15) pref. 5-10% chromium oxide; 0-2 (0-2) pref. 0.25-0.75% magnesia, balance alumina. The material has increased durability on high speed cutting...
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| creator | ALEXANDR ALEXEEVICH MAXIMOV, ALEXANDR IVANOVICH VLASOV, OLEG SERGEEVICH MALTSEV, LEONID PETROVICH MERKULOV, MSTISLAV NIKOLAEVICH PIVOVAROV ET GEORGY ROMANOVICH ZOLOTAREV |
| description | Ceramic cutting material having a mean grain size of 1-2 micron consists of 0-20 (0.25-17) pref. 8-12% rare earth metal oxide or yttrium oxide; 0-20 (0.25-15) pref. 5-10% chromium oxide; 0-2 (0-2) pref. 0.25-0.75% magnesia, balance alumina. The material has increased durability on high speed cutting, high mechanical strength and heat resistance. Specifically, it has a heat resistance at 250-500 deg.C 1.25-2.5 times higher than prior art ceramic cutting material and a cutting durability of 50-60 mins., i.e. 1.5-2 times higher than prior art.
LA PRESENTE INVENTION SE RAPPORTE A UN MATERIAU CERAMIQUE NOUVEAU ET CONCERNE PLUS PRECISEMENT UN MATERIAU CERAMIQUE POUR LA FABRICATION D'OUTILS DE COUPE.ELLE EST CARACTERISEE EN CE QUE CE MATERIAU DE COUPE CERAMIQUE PRESENTE UNE DIMENSION DE GRAIN DE 1 A 2MICRONS ET UNE COMPOSITION PONDERALE DE:-OXYDE DE LANTHANIDE OU OXYDE D'YTTRIUM, 0,053 A 17,0;-OXYDE DE CHROME, 0,025 A 15,0;-OXYDE DE MAGNESIUM, 0,050 A 1,0;-OXYDE D'ALUMINIUM, Q.S.P. 100,0.L'INVENTION S'APPLIQUE A LA CONFECTION D'OUTILS DE COUPE. |
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LA PRESENTE INVENTION SE RAPPORTE A UN MATERIAU CERAMIQUE NOUVEAU ET CONCERNE PLUS PRECISEMENT UN MATERIAU CERAMIQUE POUR LA FABRICATION D'OUTILS DE COUPE.ELLE EST CARACTERISEE EN CE QUE CE MATERIAU DE COUPE CERAMIQUE PRESENTE UNE DIMENSION DE GRAIN DE 1 A 2MICRONS ET UNE COMPOSITION PONDERALE DE:-OXYDE DE LANTHANIDE OU OXYDE D'YTTRIUM, 0,053 A 17,0;-OXYDE DE CHROME, 0,025 A 15,0;-OXYDE DE MAGNESIUM, 0,050 A 1,0;-OXYDE D'ALUMINIUM, Q.S.P. 100,0.L'INVENTION S'APPLIQUE A LA CONFECTION D'OUTILS DE COUPE.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE BORING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS REFRACTORIES SLAG TRANSPORTING TREATMENT OF NATURAL STONE TURNING |
| title | Ceramic cutting tool material - comprising alumina with added rare earth metal or yttrium oxide, chromium and magnesium oxides (AT 15.6.82) |
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