电气石红外光谱与红外辐射特性研究.pdf

2008 年 9 月，第 14 卷，第 3 期，426-432页 高 　校　地　质　学　报 September 2008，Vol. 14， No.3， p. 426-432 Geological Journal of China Universities 电气石红外光谱和红外辐射特性的研究 1 1 2 李雯雯 , 吴瑞华 , 董 颖 （1. 中国地质大学 珠宝学院，北京 100083；2. 北京市财经学校，北京 100006） 摘要：精确测试和研究了不同种属电气石的红外光谱特征及不同种属、不同温度条件下热处理电气石的红外辐射特性。结 果表明：电气石具有高红外发射率的本质在于其晶体结构中的分子振动具红外活性；铁、镁电气石红外发射率相近，且都 大于锂电气石的红外发射率；电气石热处理的温度与红外发射率之间存在一定的对应关系，随着热处理的温度的增加，红 外发射率减小，当温度增大到 800℃红外发射率达到最大值，超过 900℃，电气石开始分解，红外发射率开始下降；电气石 在室温下最大单色辐出度相应的波长为 9~10μm 与绝对黑体 9.72 μm 吻合较好，为良好的红外吸收与发射材料。 关键词 ：电气石；红外光谱；红外辐射 中图分类号：P578.953　　　　　　　　文献标识码：A　　　　　　　　文章编号：1006-7493（2008）-03-0426-07 Study on Infrared Spectra and Infrared Radiation Characteristics of Tourmaline 1 1 2 LI Wen-wen , WU Rui-hua , DONG-Ying 1. China University of Geosciences, Beijing 100083, China; 2. Beijing Financial School, Beijing 100006, China Abstract: This paper studies the infrared spectra (IS) characteristics of different tourmaline species, and the infrared radiation (IR) characteristics after heat treatment on tourmaline species at different temperatures. The results show that the high IR ratio of tourmaline is due to the infrared activity of vibration in its crystal structure. The IR ratio of Fe tourmaline is close to that of Mg tourmaline, and both are higher than that of Li tourmaline. The IR ratio of tourmaline has some relationship with heat treatment temperature: with increasing heat treatment temperature, the IR ratio decreases. When heated to 800℃, the IR ratio reaches a maximum; while heated to higher than 900℃, tourmaline begins to decompose and its infrared radiation ratio drops down. At th