直热式化学气相渗C/C复合材料研究  

Research on Structures and Properties of C/C Composites Using the Preparation of HCVI

作　　者：汤素芳[1] 邓景屹[1] 杜海峰[1] 刘文川[1] 

机构地区：[1]中国科学院金属研究所,沈阳110016

出　　处：《材料工程》2003年第11期36-39,共4页Journal of Materials Engineering

基　　金：国家自然科学基金资助项目 (90 2 0 50 1 7)

摘　　要：采用直热式化学气相渗工艺制备了 C/ C复合材料 ,以 2 D无纬织物和碳毡为纤维预制体 ,液化石油气为碳源气体 ,在常压下经 2 5 h左右沉积得到整体密度分别为 1.6 0 g· cm- 3和 1.78g· cm- 3的 C/ C复合材料。观察了材料的微观结构 ,测试了材料的力学性能和热物理性能。结果表明 ,直热式化学气相渗制备的 C/ C复合材料具有良好的力学性能和热物理性能 ,是一种较为理想的制备 C/ C复合材料的新工艺。The heaterless chemical vapor infiltration (HCVI) process was used to fabricate C/C composites.2D-fabric and felt were infiltrated using liquefied petroleum gas as source gas.The bulk density of the composites is 1.60 g·cm^(-3) and 1.78 g·cm^(-3) deposited in about 25 hours, respectively.The microstructure of composites was observed, and the mechanical and the thermal physical properties were investigated.The results show HCVI process is an ideal technique to prepare C/C composites.The C/C composites deposited have good mechanical properties and thermal-physical properties.

关 键 词：直热式 HCVI 化学气相渗 C/C复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]