激光-感应复合加热法制备碳包覆纳米铝粉

推进技术 ›› 2007, Vol. 28 ›› Issue (3): 333-336.

激光-感应复合加热法制备碳包覆纳米铝粉

张小塔,宋武林,郭连贵,胡木林,谢长生

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;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430075;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430076;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430077;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430078

发布日期:2021-08-15
基金资助:
国家自然科学基金资助项目(50471061)

Preparation of carbon-coated Al nanopowders by laser-induction complex heating method

State Key Lab.of Plastic Forming Simulation and Die and Mould Technology,Huazhong Univ.of Science and Technology,Wuhan,430074,Chian;State Key Lab.of Plastic Forming Simulation and Die and Mould Technology,Huazhong Univ.of Science and Technology,Wuhan,430075,Chian;State Key Lab.of Plastic Forming Simulation and Die and Mould Technology,Huazhong Univ.of Science and Technology,Wuhan,430076,Chian;State Key Lab.of Plastic Forming Simulation and Die and Mould Technology,Huazhong Univ.of Science and Technology,Wuhan,430077,Chian;State Key Lab.of Plastic Forming Simulation and Die and Mould Technology,Huazhong Univ.of Science and Technology,Wuhan,430078,Chian

Published:2021-08-15

摘要/Abstract

摘要： 为了探索固体火箭推进剂的新型燃烧剂,采用激光-感应复合加热法在CH4气和Ar气的气氛下制备了碳包覆铝纳米粒子。对这种纳米粒子进行了X射线衍射(XRD)、透射电子显微镜(TEM)和高分辨透射电镜(HRTEM)的物相、形貌和结构分析,结果表明,该纳米粒子具有明显的核壳结构。差热分析(DTA)表明了碳包覆纳米铝粉在氧气氛中540℃左右剧烈氧化。简要讨论了碳包覆铝纳米颗粒的形成过程,即碳原子没有溶解在纳米铝颗粒内部,而是在铝颗粒的表面成核长大。

关键词: 固体推进剂;燃烧剂;碳包覆;纳米铝粉;激光-感应复合加热法

Abstract: To explore new combustion agents of solid rocket propellants,carbon-coated Al nanoparticles have been obtained by laser-induction complex heating method in a mixture of methane gas and Ar gas atmosphere.The as-prepared nanoparticles with clear core-shell structure were found by analysis of phases,morphologies and strutural features with X-ray diffraction,transmission electron microscopy and high-resolution transmission electron microscopy Differential thermal analysis showed carbon-coated Al nanopowders were oxidated acutely about at 540℃ in oxygen atmosphere.The pathway for the carbon-coated Al nanoparticles formation that C atoms are not dissolved into Al nanoparticles but directly transformed into the graphitic coating on the surface of Al was discussed briefly.

Key words: Solid propellant;Combustion agent;Carbon-coated+;Al nanopowder+;Laser-induction complex heating method+

张小塔,宋武林,郭连贵,胡木林,谢长生. 激光-感应复合加热法制备碳包覆纳米铝粉[J]. 推进技术, 2007, 28(3): 333-336.