Meng Junping, Liang Jinsheng, Liu Jie, Ding Yan, Gan Kun
J Nanosci Nanotechnol. 2014 May;14(5):3607-11. doi: 10.1166/jnn.2014.7984.
Mineral black tourmaline powders were heat-treated at different temperatures. Their crystal structure was studied by X-ray diffractometer. Their infrared absorption and emission spectra before and after the heat treatment were analyzed by the Fourier transform infrared spectrometer. The corresponding fine structures were discussed in detail. The results showed that the powders possessed higher infrared emissivity at the band where they showed stronger infrared absorption. However, there is no certain correlation between the peak intensity of infrared absorption and emissivity values at the same frequency. Because of the crystal shrinkage of c-axis, the electronic transitions were stimulated between different energy levels, and the abilities of infrared absorption and emission were enhanced with increasing the temperature of heat treatment.
将矿物黑电气石粉末在不同温度下进行热处理。通过X射线衍射仪研究其晶体结构。利用傅里叶变换红外光谱仪分析热处理前后的红外吸收光谱和发射光谱，并详细讨论了相应的精细结构。结果表明，这些粉末在红外吸收较强的波段具有较高的红外发射率。然而，同一频率下红外吸收峰强度与发射率值之间没有确定的相关性。由于c轴晶体收缩，不同能级之间激发了电子跃迁，随着热处理温度的升高，红外吸收和发射能力增强。
