Zhu, Jiadeng Park, Sang Wook Joh, Han-Ik Kim, Hwan Chul Lee, Sungho 2024-01-20T12:33:25Z 2024-01-20T12:33:25Z 2021-09-05 2013-04 1976-4251 https://pubs.kist.re.kr/handle/201004/128197 Isotropic pitch fibers were stabilized and carbonized for preparing carbon fibers. To optimize the duration and temperature during the stabilization process, a thermogravimetric analysis was conducted. Stabilized fibers were carbonized at 1000, 1500, and 2000 degrees C in a furnace under a nitrogen atmosphere. An elemental analysis confirmed that the carbon content increased with an increase in the carbonization temperature. Although short graphitic-like layers were observed with carbon fibers heat-treated at 1500 and 2000 degrees C, Raman spectroscopy and X-ray diffraction revealed no significant effect of the carbonization temperature on the crystalline structure of the carbon fibers, indicating the limit of developing an ordered structure of isotropic pitch-based carbon fibers. The electrical conductivity of the carbonized fiber reached 3.9 x 10(4) S/m with the carbonization temperature increasing to 2000 degrees C using a four-point method. English SPRINGER JAPAN KK COMPRESSIVE STRENGTH MODULUS CARBONIZATION MICROTEXTURE Preparation and characterization of isotropic pitch-based carbon fiber Article 10.5714/CL.2013.14.2.094 2 CARBON LETTERS, v.14, no.2, pp.94 - 98 CARBON LETTERS 14 2 94 98 kci ART001764578 000344197900004 Chemistry, Multidisciplinary Materials Science, Multidisciplinary Chemistry Materials Science Article COMPRESSIVE STRENGTH MODULUS CARBONIZATION MICROTEXTURE isotropic pitch stabilization carbonization Raman X-ray diffraction