... the ablation, the heat-resistance to attack, the damage allowance well to be high, the strength at high temperatures high, may designed strong ... rods and bars, crucible, heater, crucible request, conduction current tube, heat preservation tube, boat pan, fastener, electrode. Model Apparent Densityg/cm3Bending ... Kaifu District, Changsha City,Hunan,China carbon Composite Materials in high temperature