【摘要】：隨著科學(xué)技術(shù)日新月異的發(fā)展,紅外測(cè)量技術(shù)在遙感、輻射測(cè)溫、紅外隱身、農(nóng)業(yè)、醫(yī)療等領(lǐng)域都展現(xiàn)出了重要的應(yīng)用前景。在花樣眾多的輻射測(cè)量中,材料的發(fā)射率是重要的參數(shù)之一。為滿足材料發(fā)射率數(shù)據(jù)的需求,根據(jù)一套自主研制的光譜發(fā)射率測(cè)量裝置對(duì)A3鐵、304鋼以及201鋼在不同溫度下的光譜發(fā)射率進(jìn)行了精確的測(cè)量,并對(duì)影響發(fā)射率的幾個(gè)因素做了深入的探究。結(jié)果顯示:這三種鋼材的發(fā)射率隨溫度升高而變大,同等溫度下A3鐵的發(fā)射率要高于304鋼和201鋼,且材料中的鉻含量會(huì)降低材料的發(fā)射率值。采用XRD分析了三種材料表面氧化后的成分,并探討了表面成分變化對(duì)發(fā)射率的影響。結(jié)果表明:A3鐵氧化后生成不穩(wěn)定的四氧化三鐵Fe_3O_4和氧化亞鐵FeO,各種成分的相互轉(zhuǎn)變會(huì)導(dǎo)致光譜發(fā)射率發(fā)生較大的變化,而304鋼和201鋼表面氧化后主要生成氧化鉻,因而光譜發(fā)射率也相對(duì)比較穩(wěn)定。另外使用輻射光疊加原理和Christiansen效應(yīng)成功解釋了三種材料的發(fā)射率在大約10μm處出現(xiàn)極大值的現(xiàn)象。該研究極大地豐富了三種材料的光譜發(fā)射率數(shù)據(jù),為輻射測(cè)量技術(shù)在三種材料中的應(yīng)用提供了強(qiáng)有力的數(shù)據(jù)支撐。
[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.
【作者單位】： 河南師范大學(xué)物理與電子工程學(xué)院;北京理工大學(xué)光電學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(61127012,61307122和61475043)資助
【分類號(hào)】：TG115.33

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