一锅水热法制备炭-铁磁体复合材料及红外消光性能研究(特约)  

Preparation of carbon coated ferromagnetic composite materials by one-pot and IR extinction performance(Invited)

作　　者：暴丽霞 乔小晶[2] 杨铭 Bao Lixia;Qiao Xiaojing;Yang Ming(Analysis and Testing Center,Beijing Institute of Technology,Beijing 102488,China;School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学分析测试中心,北京102488 [2]北京理工大学机电学院,北京100081

出　　处：《红外与激光工程》2020年第7期24-29,共6页Infrared and Laser Engineering

摘　　要：通过一锅水热法制备了炭包铁氧体前驱体,并在950℃氮气保护条件下焙烧得到了炭包铁磁体复合材料。通过XRD、FT-IR、SEM等方法,分析了复合材料的形貌、成分,研究了反应时间、淀粉和葡萄糖的配比等因素对复合材料形貌及红外消光性能的影响。采用傅里叶红外光谱仪的KBr压片法测试并计算了各材料在2.5~25μm区间的红外消光系数。研究结果表明:反应时间为20 h和18 h,淀粉与葡萄糖的配比为9:3和6:10时,焙烧后样品的球形形貌较好,5号和7号样品在4~10μm波段范围内消光性能较好,消光系数均大于0.3 m^2/g,最高可达到0.37 m^2/g。Carbon coated ferrite precursor was prepared by one-pot hydrothermal method,which was calcined at 950℃with N2 protection to obtain carbon coated ferromagnet composite materials.The morphology and composition of the materials were analyzed by XRD,FT-IR and SEM,and the effects of reaction time,the ratio of starch and glucose on the morphology and IR extinction of the composite were studied.The IR extinction coefficients of materials in the range of 2.5-25μm were measured and calculated by KBr method of FT-IR.The results show that the samples have good morphology and extinction performance,that were prepared under the conditions of reaction time of 20 h and 18 h and the ratio of starch and glucose of 9:3 and 6:10.In the range of 4-10μm,the extinction coefficient of sample 5 and 7 is greater than 0.3 m^2/g and the maximum is 0.37 m^2/g.

关 键 词：光电对抗 红外烟幕 碳 铁磁体 质量消光系数 

分 类 号：TN216[电子电信—物理电子学]