MATERIAL FOR HEAT-RESISTANT PROTECTIVE COATING Russian patent published in 2019 - IPC C23C24/08 C23C4/04 

FIELD: technological processes.

SUBSTANCE: invention relates to production of heat-resistant materials and can be used for application of high-temperature antioxidative protective coatings on high-heat-resistant structural materials (carbon-carbon and carbon-ceramic composite materials, coal graphite materials, alloys based on Nb, Mo, W) widely used in aerospace, rocket and other industries. Proposed material for heat-resistant protective coating contains the following, wt%: titanium 35.0–40.0, molybdenum 8.0–10.0, boron 8.0–10.0, calcium 1.5–3.0, at least one element from the group of rare-earth metals (REM) 0.2–0.8, silicon – the rest. Material has a heterophase structure, mainly titanium diboride (TiB₂), titanium and molybdenum disilicide of variable composition (Ti_xMo_1-xSi₂, 0.1<x<0.87), disilicides of titanium, molybdenum and calcium (TiSi₂, MoSi₂, CaSi₂) and silicon (Si) uncoupled into chemical compounds.

EFFECT: higher temperature and time intervals of serviceability of heat-resistant coatings in rate high-enthalpy streams of oxygen-containing gases at temperatures on surface T_w≥1,800 °C with simultaneous preservation of their catalytic activity at level K_w=2–5 m/s.

4 cl, 3 dwg, 2 tbl