C04B35/00

Shaped ceramic products characterised by their composition; ceramic compositions (containing free metal bonded to carbides, diamond, oxides, borides, nitrides, silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides, other than as macroscopic reinforcing agents C22C); Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products [4]

Note(s) In this group, in the absence of an indication to the contrary, compositions are classified according to the constituent present in the highest proportion by weight.[3,6]In this group, magnesium is considered as an alkaline earth metal.In this group, a composite is considered as a sintered mixture of different powdered materials, other than sintering aids, the materials being present as separate phases in the sintered product.In this group, fine ceramics are considered as products having a polycrystalline fine-grained microstructure, e.g. of dimensions below 100 micrometers.The production of ceramic powder is classified in this group in so far as it relates to the preparation of powder with specific characteristics.