In this study the silicon-alloyed isotropic pyrolytic carbon has been deposited in the tumbling bed from the pyrolysis of propane and silicon tetrachloride and investigated weather the silicon-alloyed isotropic pyrolytic carbon deposited in this study is usable as biomaterial or not.
The silicon-alloyed isotropic pyrolytic carbon has obtained by controlling the process variables such as propane concentration and the argon flow rate into the silicon tetrachloride bubbler at the fixed reaction bed temperature of 1200℃, rotation of reaction tube of 40 rpm (Rotation per Minute), bed particle weight of 7.5g and total flow rate of 2ℓ/min; it has been studied in propane concentration ranging from 10 to 70% and the argon flow rate into the silicon tetrachloride bubbler ranging 0 to 1000 cc/min.
The results show that the silicon-alloyed isotropic pyrolytic carbon is obtained at all conditions investigated. And then the alloyed silicon content is ranging from 7 to 14.5 wt%. The density and deposition rate of deposited silicon-alloyed isotropic carbon increases according to silicon content and propane concentration. And the apparent crystallite size (Lc) of pyrolytic carbon is not changed with silicon content. The density and apparent crystallite size are respectively in the range of 1.94 to 2.06g/㎤ and 20 to 25A.
It is shown that the silicon-alloyed isotropic pyrolytic carbon obtained in this experiment is usuable as biomaterial through the characterization.
