Effects of Temperature and Heating Time on Armco Iron Spectral Emissivity in Atmospheric Environment
YU Kun1, WANG Wen-bao2, ZHANG Kai-hua1, LIU Yu-fang1*
1. College of Physics & Electronic Engineering, Henan Normal University, Xinxiang 453007, China 2. College of Physics & Engineering，Xingyi Normal University for Nationalities, Xingyi 562400, China
Abstract：The spectral emissivity of pure iron at 1.55 μm was investigated systematically by using our self-designed reflective experimental apparatus based on the Kirchhoff’s law, and the influences of temperature and heating time on the spectral emissivity of pure iron were also discussed. The experimental data showed that the spectral emissivity of pure iron increased with temperature rising and its peak value and valley value appeared at certain temperatures. By analyzing the emissivity model of metal with oxidation layer, the variation of the spectral emissivity of pure iron was illustrated. The influence of heating time on the spectral emissivity was different at different temperature. The research results will further enrich pure iron spectral emissivity data, and provide the experimental basis for its application in atmospheric environment.
Key words：Pure iron;Spectral emissivity;Temperature;Heating time
于 坤1，王文宝2，张凯华1，刘玉芳1* . 温度和加热时间对大气环境中纯铁光谱发射率的影响 [J]. 光谱学与光谱分析, 2014, 34(09): 2529-2532.
YU Kun1, WANG Wen-bao2, ZHANG Kai-hua1, LIU Yu-fang1* . Effects of Temperature and Heating Time on Armco Iron Spectral Emissivity in Atmospheric Environment. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(09): 2529-2532.
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