Transcription of 炭素材の黒鉛化 - 九州大学（KYUSHU UNIVERSITY）
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炭素材の黒鉛化 - 九州大学（KYUSHU UNIVERSITY）
3 3- 1 2 Formation of carbons from organic materials3 Texture, structure and physical properties of pitch based CFs3 CodeMesophase pitch based CFGraphite single crystalIsotropic pitch based CFGlassy carbon(2000-2500oC)PANbased CF(Middle grade modulus)Fiber diameter ( m)7~1012~185~8 Struc-turesApparent density(g/cm3) ~ ~ ~ ~ density(g/cm3) ~ ~ pore (%) ~2930~3420 Interlayered spacing(nm) ~ ~ & Lc (nm)39, 38>1002~32~42, 2 Physi-calpro-pertiesTensile strength (MPa)1500~4200100000500~850600~12002500~ 7000 Young s modulus (GPa)50~950106020~4022~33200~350 Elongation property (%) ~ ~ ~ conductivity(W/mK)~900 (1100)19504~238~2510 Resistivity ( Ohm m)2~ ~5040~4510~20 CTE 10-6 K) ~ ~ tensile strength of IPCF comes from low molecular carbon structuresStructures Structural units Nano-phased unitsSpaces Pore size and homogeneity Pore amountsSurfaces Edges (Kinds and amounts) Basals (Perfectness and Orientation)+NanoSyntheses Mass-productionControls ImprovingPerformancesand FunctionsHybridization ImprovingPerformancesand Functions CreatingNew FunctionsHighperformancesHighfunctionsNe wfunctionsApplicationsProductions45 Graphitization 5 1500 C 1090 kJ/mol 3000 C d002
ピークの回折角をBragg式に代入し決定され，この方法で得られる値は平均面間隔と呼ば れる．一般に易黒鉛化性炭素は2000℃以上の温度でd002が急激に減少し黒鉛結晶の値 0.3354 nmに近づくが，難黒鉛化性炭素のように乱層構造をとる場合には3000℃処理後
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