PREPARATION OF CARBON FIBER COATED WITH BaFe_(12)O_(19) BY SOL GEL TECHNIQUE

Magnetic carbon fiber coated with BaFe 12 O 19 was successfully prepared by SOL GEL technique. Formation of Ba(Sr) M ferrite was proved by IR. Both mechanic and magnetic performances were measured, the tensile strength of fiber coated by ferrite is 4.88 GPa and its Ms is 0.197 emu/g. It is suggested that the fiber coating with ferrite should be a kind of functional firber, it perhaps is a kind of absorbing wave fiber.