甲烷气氛中激光-感应复合加热制备碳包覆纳米铝粉  

Preparation of Carbon-coated Aluminum Nanopowders by Laser-induction Complex Heating in Methane Atmosphere

作　　者：郭连贵[1] 宋武林[1] 张小塔[1] 谢长生[1] 胡木林[1] 

机构地区：[1]华中科技大学材料学院模具技术国家重点实验室,湖北武汉430074

出　　处：《纳米科技》2006年第6期41-44,共4页

基　　金：国家自然科学基金（50471061）

摘　　要：在甲烷气氛中采用激光-感应复合加热法制备了碳包覆纳米铝粉。使用XRD、TEM、HRTEM对碳包覆纳米铝粉进行物相、形貌、结构分析。结果表明，制备的纳米胶囊粒径范围为8～40nm。平均粒径28nm，纳米铝粒子表面包覆了3-4层石墨碳。对碳包覆纳米铝粉的形成机理进行了讨论。Carbon-coated Aluminum nanopowders were synthesized by laser-induction complex heating method in methane atmosphere. The phases, morphology and structure were studied by means of X-ray diffraction （XRD）, transmission electron microscopy（TEM） and high-resolution transmission electron microscopy（HRTEM）. The results show that the as-made Aluminum nanocapsules with size from 8 to 40nm and an average particle size of 28 nm are covered by 3~4 graphitic layers. The mechanism of formation of carbon-coated Aluminum nanopowders produced by laser-induction complex heating in methane atmosphere are discussed.

关 键 词：含能材料 纳米铝粉 碳包覆 

分 类 号：TB383[一般工业技术—材料科学与工程]