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skinny ceramic parts obtained by melting and casting a composition from the al2o3 - zro2 - sio2 system - k20.
skinny ceramic parts obtained by melting and casting a composition from the al2o3 - zro2 - sio2 system - k20.
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机译:通过熔化和铸造由al2o3-zro2-sio2系统-k20组成的组合物而获得的细陶瓷零件。
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摘要
The invention relates to ceramic articles. It relates to an article made of ceramic material produced by fusing and casting in a mold a composition based on alumina, zirconia, silica and an alkali metal oxide, said article consisting of crystalline corundum and zirconia phases and of a vitreous phase, said zirconia being substantially in monoclinic form from the core to the skin of said article, and having, in at least one of its parts, a thickness lower than or equal to 30 mm and being intended for an application where mechanical strength and/or abrasion resistance are of primary importance, said composition consisting essentially, in % by weight based on the oxides, of: -Al2O3 40-75 -ZrO2 20-55 -SiO2 5-20 -Na2O 0-2.7 -K2O 0.15-4.25 -Fe2O3 + TiO2 + CaO + MgO 0-2, - with the condition that the weight ratio IMAGE is between 0.07 and 0.14 inclusive. Application as micronizer disc, pump wear component and antiabrasion slab.
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