涂层碳纤维增强镁基复合材料  

Coating Carbon Fiber Reinforced Magnesium Composite

作　　者：赵慧锋[1] 夏存娟[1] 马乃恒[1] 王浩伟[1] 李险峰[1] 

机构地区：[1]上海交通大学金属基复合材料国家重点实验室,上海200030

出　　处：《热加工工艺》2007年第12期37-39,共3页Hot Working Technology

摘　　要：通过溶胶-凝胶法,采用含有机添加剂的正硅酸乙酯醇溶液,经二次水解、缩聚、干燥和烧结在碳纤维表面形成均匀SiO2涂层。该涂层改善了碳纤维与镁合金基体的润湿性,实现了低压液相浸渗制备C/Mg复合材料,并提高了复合材料的阻尼性能。The carbon fiber coating with SiO2 film was formed by sol-gel. The new process adopted the solution of TEOS with organic additives,and went through two-step hydrolysis procedure,polycondensing,drying and sintering. The results show that the SiO2 film improves the wetting property between fiber and alloy. And C/Mg composite is prepared under a low pressure infiltration and the damping property is improved.

关 键 词：涂层 溶胶-凝胶 液相浸渗 二次水解法 C/Mg复合材料 阻尼性能 

分 类 号：TB333[一般工业技术—材料科学与工程]