A3铁、304钢和201钢光谱发射率
发布时间：2018-09-05 11:10
【摘要】：随着科学技术日新月异的发展,红外测量技术在遥感、辐射测温、红外隐身、农业、医疗等领域都展现出了重要的应用前景。在花样众多的辐射测量中,材料的发射率是重要的参数之一。为满足材料发射率数据的需求,根据一套自主研制的光谱发射率测量装置对A3铁、304钢以及201钢在不同温度下的光谱发射率进行了精确的测量,并对影响发射率的几个因素做了深入的探究。结果显示:这三种钢材的发射率随温度升高而变大,同等温度下A3铁的发射率要高于304钢和201钢,且材料中的铬含量会降低材料的发射率值。采用XRD分析了三种材料表面氧化后的成分,并探讨了表面成分变化对发射率的影响。结果表明:A3铁氧化后生成不稳定的四氧化三铁Fe_3O_4和氧化亚铁FeO,各种成分的相互转变会导致光谱发射率发生较大的变化,而304钢和201钢表面氧化后主要生成氧化铬,因而光谱发射率也相对比较稳定。另外使用辐射光叠加原理和Christiansen效应成功解释了三种材料的发射率在大约10μm处出现极大值的现象。该研究极大地丰富了三种材料的光谱发射率数据,为辐射测量技术在三种材料中的应用提供了强有力的数据支撑。
[Abstract]:With the rapid development of science and technology, infrared measurement technology in remote sensing, radiation temperature measurement, infrared stealth, agriculture, medical treatment and other fields have shown an important application prospects. The emissivity of materials is one of the most important parameters in various radiation measurements. In order to meet the requirement of material emissivity data, the spectral emissivity of steel A3 and steel 201 at different temperatures was measured accurately by a set of self-developed spectroscopic emissivity measurement device. Several factors affecting emissivity are also discussed. The results show that the emissivity of the three steels increases with the increase of temperature. At the same temperature, the emissivity of iron A3 is higher than that of steel 304 and 201, and the content of chromium in the material will decrease the emissivity of the material. The composition of three kinds of materials after surface oxidation was analyzed by XRD, and the effect of surface composition on emissivity was discussed. The results show that the transformation of various components of Fe _ 2O _ 3 Fe_3O_4 and Fe _ 2O _ 3 FeO, after oxidation of Fe _ 2O _ 3 and Fe _ 2O _ 3 lead to a great change in spectral emissivity, while chromium oxide is mainly formed after oxidation on the surface of 304 steel and 201 steel. Therefore, the spectral emissivity is relatively stable. In addition, the radiation superposition principle and the Christiansen effect are used to explain the maximum emissivity of the three materials at about 10 渭 m. This study greatly enriches the spectral emissivity data of three kinds of materials and provides a strong data support for the application of radiation measurement technology in the three kinds of materials.
【作者单位】： 河南师范大学物理与电子工程学院;北京理工大学光电学院;
【基金】：国家自然科学基金项目(61127012,61307122和61475043)资助
【分类号】：TG115.33
本文编号：2224092
[Abstract]:With the rapid development of science and technology, infrared measurement technology in remote sensing, radiation temperature measurement, infrared stealth, agriculture, medical treatment and other fields have shown an important application prospects. The emissivity of materials is one of the most important parameters in various radiation measurements. In order to meet the requirement of material emissivity data, the spectral emissivity of steel A3 and steel 201 at different temperatures was measured accurately by a set of self-developed spectroscopic emissivity measurement device. Several factors affecting emissivity are also discussed. The results show that the emissivity of the three steels increases with the increase of temperature. At the same temperature, the emissivity of iron A3 is higher than that of steel 304 and 201, and the content of chromium in the material will decrease the emissivity of the material. The composition of three kinds of materials after surface oxidation was analyzed by XRD, and the effect of surface composition on emissivity was discussed. The results show that the transformation of various components of Fe _ 2O _ 3 Fe_3O_4 and Fe _ 2O _ 3 FeO, after oxidation of Fe _ 2O _ 3 and Fe _ 2O _ 3 lead to a great change in spectral emissivity, while chromium oxide is mainly formed after oxidation on the surface of 304 steel and 201 steel. Therefore, the spectral emissivity is relatively stable. In addition, the radiation superposition principle and the Christiansen effect are used to explain the maximum emissivity of the three materials at about 10 渭 m. This study greatly enriches the spectral emissivity data of three kinds of materials and provides a strong data support for the application of radiation measurement technology in the three kinds of materials.
【作者单位】： 河南师范大学物理与电子工程学院;北京理工大学光电学院;
【基金】：国家自然科学基金项目(61127012,61307122和61475043)资助
【分类号】：TG115.33
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