الخصائص التركيبية لاغشية الكرافيت الحراري المرسبة باستخدام تقنية التحلل الحراري Thermal Decompositionللبنزين العالي النقاوة

Pyrolytic Graphite films prepared on graphite substrates by cracking high purity benzen for different deposition parameters. I he experimental results show a change in deposition rate as a function of deposition temperature, benzen vapor pressure and deposition time. The Results alsu show an increase in sharpness of diffracted beams with increasing deposition temperature, a little displacement in diffraction angles(20) of the plane (002) toward the highest values , with decreasing the interplaner distance of plane (002) which may lead to increase in degree of graphitization .The best results obtained tor films deposited are at(2000°C) and vapor pressure(l.5 mbar ).