High temperature synthesis of modified exfoliated graphite-eased materialsand their mechanical properties

Using perspective trends in formation of exfoliated graphite (EG)-based com position materials by synthesis of non-organic combinations on the surface of EG-particles, it was proved the possibility of purposeful change of prop erties both of EG-powder surface and EG-based moulded materials. This work presents a method of synthesis of alumosilicates on the surface o f EG-particles in order to improve the thermooxidazing resistance of graphi te. Methodical approach an evaluation of formation and deformation processes, a s well as an evaluation of structural strength of pressed articles produced from modified EG-powder, was elaborated. It was established that process o f synthesis of alumosilicates on the surface of EG-particles leads to the f ormation of energetically more stable honeycomb powder structure in vermicu lar form with decreased number of defects in continuity of the structure in form of powder. This property increase the durability of articles, produce d from EG-powder with modified surface.