纳米AlN增强C/C复合泡沫材料制备及机理研究  

Research of nanometer aluminium nitride reinforcing carbon/carbon composite foam and its mechanism

作　　者：赵超[1,2] 吕惠民[1] 魏萍[1] 

机构地区：[1]西安理工大学应用物理系,陕西西安710048 [2]山西大同大学物电学院,山西大同037009

出　　处：《炭素技术》2011年第3期10-13,共4页Carbon Techniques

基　　金：陕西省教育厅基金(06JK214;09JK36)

摘　　要：融合韧带网络型泡沫炭与微球型泡沫炭的结构特点,并结合同质复合材料与异质复合材料的互补优点,用填充了纳米AlN的酚醛树脂胶作韧带网络将酚醛树脂微球六角密排,再经过炭化、石墨化处理,成功地制备了纳米AlN/C复合泡沫样品。对该样品进行扫描电镜和X射线衍射测试,结果表明生成的直径在400～500 nm范围的炭纤维和尺寸在150～200 nm之间的纳米AlN颗粒共同增强韧带网络。同时,对纳米AlN增强C/C复合泡沫材料的机理进行了分析解释。Merging the structural features of ligamentous reticulated carbon foam and microspheric carbon foam together,and combining the complementary merits b etween homogeneous composite and heterogeneous composite,we prepared nano AlN/C composite foam samples successfully after carbonization and graphitization.In this process,phenol aldehyde resin filled with nano AlN was served as ligament nets,and microspheres were carried on close-packed hexagonal structure.The r esults of the X-ray diffraction and the scanning microscopy indicate that the grown carbon fiber whose diameters are in the range of 400 nm to 500 nm,and nan o AlN particles with the size of 150～200 nm jointly strengthened the ligament n ets.Moreover,the mechanism of how nano AlN reinforced C/C composite foam is an alyzed and interpreted.

关 键 词：纳米AIN 复合泡沫 扫描电镜 X射线衍射 

分 类 号：TB332[一般工业技术—材料科学与工程] TB383