焦炭颗粒的平均细度对沥青基炭复合材料性能的影响  

Effect of the average particle size of granular pitch coke on properties of pitch-based granular coke reinforced carbon composites

作　　者：郭领军[1] 李贺军[1] 薛晖[1] 李克智[1] 孙国岭[1] 

机构地区：[1]西北工业大学炭/炭复合材料省级工程技术研究中心,陕西西安710072

出　　处：《新型炭材料》2005年第3期235-239,共5页New Carbon Materials

基　　金：国家自然科学基金(50372050)~~

摘　　要：采用新型模压半炭化成型工艺制备出高密度、低成本的焦炭颗粒增强沥青基炭复合材料。研究了焦炭颗粒的平均细度对焦炭颗粒增强沥青基炭复合材料的密度和抗压强度的影响趋势,并从数学上分析了密度对抗压强度的影响规律。结果表明:沥青基炭复合材料的密度和抗压强度随焦炭颗粒平均细度的增大而增加。在本试验条件下,当沥青焦的平均细度由44.2目增加到206.3目,沥青基炭复合材料的密度和抗压强度可从1.28 g/cm3和10.1MPa增加到1.77 g/cm3和55.0MPa。Granular coke reinforced pitch-based carbon composites （CRPCC） with high density and low cost were fabricated by a new mould pressing and semi-carbonization technology. The effect of the average particle size of the granular pitch coke on the density and compressive strength of CRPCC materials was studied in detail. The rules about the effect of the density on the compressive strength of CRPCC materials were mathematically analyzed. Results show that the density and the compressive strength increase with an increase of the average particle size of granular pitch coke. In the experiment, the density and compressive strength increase from 1.28 g/cm^3 to 1.77 g/cm^3 and from 10. 1 MPa to 55.0 MPa respectively when the average particle size of the granular pitch coke as reinforcement rises from 44.2 to 206.3 mesh.

关 键 词：沥青基炭复合材料 焦炭颗粒 模压半炭化成型工艺 平均细度 抗压强度 密度 

分 类 号：TB332[一般工业技术—材料科学与工程]