C04B 35/58028

Shaped ceramic products characterised by their composition ; Ceramics compositions ; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, {i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides} or silicides {based on refractory metal nitrides based on zirconium or hafnium nitrides}