| 초록 |
Binding reaction between coke particles and binder pitch is key to controlling the porosity in the carbon artifacts such as graphite block and electrodes. Coke aggregates and carbon artifacts were investigated on the interactions of coke and binder pitch during the kneading and carbonization process. Prepared carbon blocks were carbonized according to the carbonization temperature of 300, 600, and 900 °C, respectively. Binding reaction was confirmed on the optical analysis using microscopy and X-ray computed tomography. Coke aggregated domains presented different area and shape depending on the carbonization temperature due to the pyrolysis of binder pitch. In addition, porosity was increased with increasing the carbonization temperature. The porosity analysis indicated that formation of voids and pores by the pyrolysis of binder pitch after carbonization. |
