| 炭基/锌掺杂铁磁体复合材料制备及其消光性能研究 |
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| 引用本文： | 暴丽霞,李江存,贾启才.炭基/锌掺杂铁磁体复合材料制备及其消光性能研究[J].红外与激光工程,2022,51(4):20210378-1-20210378-8. |
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| 作者姓名： | 暴丽霞 李江存 贾启才 |
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| 作者单位： | 1.北京理工大学 分析测试中心，北京 100081 |
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| 基金项目： | 北京理工大学实验室研究项目（2019BITSYB14） |
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| 摘 要： | 为了实现抗红外烟幕高效环保的要求，同时实现质轻、宽波段吸波性能，采用一步水热法制备了炭基-锰锌铁氧体/镍锌铁氧体/钴锌铁氧体复合材料的前驱体，并在500~900 ℃的温度区间进行焙烧得到了炭基/锌掺杂铁磁体复合材料。通过X射线粉末衍射仪（XRD）、傅里叶红外光谱仪（FT-IR）、扫描电子显微镜（SEM）等表征方法，分析了复合材料的物相和形貌。根据朗伯比尔定律，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2.5~25 μm区间的红外消光系数，并且研究了焙烧温度对材料消光性能的影响。研究结果表明:炭基/锌掺杂铁氧体前驱体焙烧后生成的炭基/锌掺杂铁磁体复合材料的红外消光性能均有所增强，经过700 ℃焙烧后的炭/钴锌铁磁体红外消光系数最大，为0.25 m2/g，具有较好的红外消光性能。
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| 关 键 词： | 光电对抗 红外烟幕 炭复合材料 铁磁体 消光系数 |
| 收稿时间： | 2021-12-25 |
Preparation and extinction properties of carbon/zinc doped ferromagnetic composites |
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| Affiliation: | 1.Analysis and Testing Center, Beijing Institute of Technology, Beijing 100081, China2.Institute of NBC Defence, Beijing 102205, China3.School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | In order to achieve the high-efficiency and environmental protection requirements of anti-infrared smoke screens, as well as light weight and wide-band wave absorption performance, the precursors of carbon-based MnZn/NiZn/CoZn ferrite composite materials were prepared by a one-step hydrothermal method, and the carbon based/Zn doped ferromagnetic composites were obtained by calcination at the temperature range of 500-900 ℃. The phase and morphology of the compression were characterized by X-ray diffraction(XRD), Fourier transform infrared spectroscopy (FT-IR) and Scanning Electron Microscopy(SEM), and the effect of calcination temperature on material properties was investigated. According to Lambert Beer’s law, the mass extinction coefficients were calculated by KBr pellets method of infrared spectroscopy in the range of 2.5-25 μm, and the effect of calcination temperature on material properties were investigated. The results show that the infrared extinction properties of carbon based/zinc doped ferromagnet composites are enhanced after calcination of carbon based/zinc doped ferrite precursor. The infrared extinction coefficient of carbon/cobalt zinc ferromagnet calcined at 700 ℃ is the largest, which is 0.25 m2/g, and has good infrared extinction properties. |
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