Production of ceramic composite materials (CCM)
Jointly with General and Inorganic Chemistry of the Russian Academy of Sciences (IGIC RAS) and D. Mendeleyev University of Chemical Technology of Russia (MUCTR) fundamentally new production technology of composite materials with unique properties has been developed.
With application of sol-gel technique and directional solidification technology nanostructured glass ceramic composite material has been developed possessing high fracture toughness (60-70 kJ/m2), workability at temperature not lower than 1300°С in conditions of oxidizing and other corrosive mediums under heavy mechanical loading.
High-temperature structural ceramic composite material SiC-SiC without reinforcement fibers SiC (VMK-3 «Carbox») has been developed for operation at temperature up to 1650°С in condition of oxidizing and other corrosive mediums. Material VMK-3 is characterized by following properties: formation of the frame-like structurally reinforcing phase due to directed growth of whisker crystals; high heat resistance; self-healing effect and recoverability for strength up to 100% at operational temperature. The material is chemically stable and resistant to corrosive mediums, provides weight reduction by 2-4 times. Specimens manufactured from CCM of Carbox-type on basis of silicon carbide have been successfully tested at exposure conditions of 800↔1700°С more than 10000 cycles (1 cycle : 60 sec), for the first time in domestic practice.