| abstract |
The invention discloses a kind of novel super-high temperature ceramics (Zr 0.8 Ti 0.2 C 0.74 B 0.26 ) the modified anti-yaw damper carbon/carbon composite of integration and preparation method thereof.Step includes：(1) after carbon fiber precast body being carried out into high-temperature heat treatment, deposition pyrolytic carbon in chemical vapor infiltration poke is placed in, prepares porous carbon/carbon composite；(2) carbon/carbon composite that deposition has pyrolytic carbon is placed on zirconium titanium mixed powder, preparing non-stoichiometric zirconium titanium carbide by high temperature infiltration reaction method is modified carbon/carbon composite；(3) above-mentioned composite is placed in C, B 4 In the mixed-powder of C, SiC, Si and penetrating agent, it is allowed to be formed the superhigh temperature ceramics with integral structure using investment and is modified carbon/carbon composite.The inventive method is simple, easy to operate, can prepare large-size components；The matrix of anti-yaw damper carbon/carbon composite and coating integration are modified suitable for the heat-resistant parts such as hypersonic vehicle. |