造孔剂羧甲基纤维素(CMC)对制备多孔碳化硅陶瓷的影响  

Effects of CMC Different Content on the Preparation of Porous Silicon Carbide Ceramic

作　　者：韩非[1] 陈宇红[1] 马建军[1] 

机构地区：[1]北方民族大学材料科学与工程学院,宁夏银川750021

出　　处：《广州化工》2011年第5期72-73,90,共3页GuangZhou Chemical Industry

基　　金：北方民族大学校级项目基金(2008Y027)

摘　　要：以Y2O3-Al2O3为复合烧结助剂,SiC为主料,加入羧甲基纤维作为造孔剂,制备了多孔陶瓷。研究了CMC含量对复合材料结构和力学性能的影响,采用SEM对复合材料的断口形貌进行分析。结果表明,反应烧结后当CMC的百分含量为12.5%时,试样的微观骨架较完整、孔的形状较规则分布较均匀、综合力学性能较好。On the preparation of porous ceramics with composite sintering auxiliaries Y2O3-Al2O3,the main ingredient of SIC and CMC as the porous agent.The CMC content of composite structure and mechanical properties was studied,and the composite fracture morphology was analyzed with SEM.The investigation results showed that when the CMC was 12.5%,the sample had more complete microscopic skeleton,shape of the hole was rule,and distribution was homogeneous and had good mechanical properties.

关 键 词：羧甲基纤维素 多孔 陶瓷 

分 类 号：TQ352.72[化学工程]