The effect of modification of matrix on densification efficiency of pitch based carbon composites
The effect of modification of matrix on densification efficiency of pitch based carbon composites作者机构：Ceramic DepartmentMaterials and Energy Research Center Biomaterial GroupFaculty of Biomedical Engineering(Center of Excellence)Amirkabir University of Technology
出 版 物：《Journal of Coal Science & Engineering(China)》 (煤炭学报（英文版）)
年 卷 期：2010年第16卷第4期
页 面：408-414页
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
主 题：pitch carbonization impregnation C/C composites
摘 要：Using coal tar pitch as a matrix precursor to prepare carbon materials is widelyused by impregnation/carbonization processing *** different grades of coaltar pitch and a natural pitch were characterized in terms of carbon yield, density, viscosity,and fractionation with solvents, as well as by thermal analysis *** suitability ofthese commercially available matrices for densification of 3 dimensional carbon-carboncomposites was *** theoretical results compared with experimental *** highest density after impregnation was obtained using one of the coal tar *** results are in reasonable agreement with experiment *** significance ofthis research is that a special heat treatment regime was *** effects of modificationtemperature on the densification efficiency of composites were investigated andthen structure and characteristics of the composites were determined by scanning electronmicroscopy (SEM), Transmission electron microscopy (TEM) and X-Ray Diffraction (XRD).
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