METHOD OF PRODUCING COMPOSITE NANOPOWDER ZrB - SiC Russian patent published in 2024 - IPC C01B35/04 B82Y40/00 C04B41/87 B01J19/08 B22F9/12 

FIELD: powder metallurgy.

SUBSTANCE: invention relates to powder metallurgy, particularly to ultrahigh-temperature ceramics based on metal borides. Described is a method of producing a composite nanopowder ZrB₃ – SiC, involving reaction of chlorides ZrCl₄ and BCl₃ in a stream of hydrogen-containing thermal plasma to form ZrB₂ particles, wherein into high-temperature flow with formed ZrB₂ nanoparticles methyl silane vapours SiCH₆ are introduced, during thermal decomposition of which nanoparticles of silicon carbide SiC are formed.

EFFECT: possibility of obtaining a homogeneous composite powder ZrB₂ – SiC, consisting of nanoparticles, in a high-intensity process using zirconium and boron chlorides as raw material, as well as methylsilane – products produced on an industrial scale.

1 cl, 2 dwg, 1 ex