激光与光电子学进展, 2015, 52 (10): 103001, 网络出版: 2015-10-08
马达加斯加低品质蓝宝石颜色成因及改善工艺研究 
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Study on Coloration Mechanism and Enhancement of Low Quality Sapphires from Madagascar
光谱学 马达加斯加蓝宝石 热处理 紫外-可见光吸收光谱 X 射线荧光光谱 spectroscopy Madagascar sapphire heat treatment ultraviolet-visible absorption spectrum X-ray fluorescence spectrum
摘要
马达加斯加是现今世界上最重要的蓝宝石产地，以马达加斯加低品质蓝宝石为研究对象，运用紫外-可见光(UV-Vis)吸收光谱和X 射线荧光光谱(XRF)分析其颜色成因并对热处理工艺进行探索。敞口环境下，经1300 ℃~1600 ℃，12~20 h 热处理，多数样品Fe2+/Ti4+荷移减弱，深蓝色调变浅，部分样品Fe3+含量减少、Ti4+含量增加，显示出纯正的蓝色。
Abstract
Madagascar is now the most important origin of sapphire all over the world. Aiming to analyze the coloration mechanism with ultraviolet-visible absorption spectrum and X-ray fluorescence (XRF) and to explore the heat treatment process of low quality sapphires from Madagascar, the sapphire samples are treated at 1300 ℃~ 1600 ℃ for 12~20 h in the air, most of the samples become light ones with weaker Fe2+/Ti4+ charge transfer, and some samples show fine color in blue with the decline of Fe3+ and increase of Ti4+.
邱成君, 王以群, 黄月霞. 马达加斯加低品质蓝宝石颜色成因及改善工艺研究[J]. 激光与光电子学进展, 2015, 52(10): 103001. Qiu Chengjun, Wang Yiqun, Huang Yuexia. Study on Coloration Mechanism and Enhancement of Low Quality Sapphires from Madagascar[J]. Laser & Optoelectronics Progress, 2015, 52(10): 103001.
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