High performance C/SiC brake materials and optimizing design

The mechanical and tribological properties of carbon/silicon carbide(C/SiC) brake materials were compared with those of carbon/carbon(C/C) ones.The results show that the mechanical properties of C/SiC brake materials are higher than those of C/C,and C/SiC brake materials have overcome the disadvantages of C/C such as low static friction coefficient and insufficient stability of friction coefficient caused by humidity.Therefore,C/SiC is a new type of high performance brake materials.By analyzing the serving environmental characteristic of C/C aircraft braking materials,the optimizing design methods on the mechanical,thermo-physical properties,friction and wear properties,materials structure and manufacture process of C/SiC brake materials were discussed.It lays a foundation for realizing the co-design among materials' microstructure,mechanical properties,friction and wear properties.