[1]张敬阳,袁心强.明溪蓝宝石改色机理探讨[J].华侨大学学报(自然科学版),2001,22(3):268-271.[doi:10.3969/j.issn.1000-5013.2001.03.011]
　Zhang Jingyang,Yuan Xinqiang.An Inquiry into the Mechanism of the Colour Change of Sapphire Acquiring from Mingxi[J].Journal of Huaqiao University(Natural Science),2001,22(3):268-271.[doi:10.3969/j.issn.1000-5013.2001.03.011]
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明溪蓝宝石改色机理探讨()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第22卷
期数:
2001年第3期
页码:
268-271
栏目:
出版日期:
2001-07-20

文章信息/Info

Title:
An Inquiry into the Mechanism of the Colour Change of Sapphire Acquiring from Mingxi
文章编号:
1000-5013(2001)03-0268-04
作者:
张敬阳; 袁心强
华侨大学材料科学与工程学院, 泉州362011; 中国地质大学珠宝学院, 武汉430074
Author(s):
Zhang Jingyang1;  Yuan Xinqiang2
1.College of Mater. Sci. & Eng., Huaqiao Univ., 362011, Quanzhou; 2.College of Jewlry, Geological Univ. of China, 430074, Wuhan
关键词:
蓝宝石;  致色;  改色;  明溪
Keywords:
sapphire;  colouration;  color changing;  Mingxi
分类号:
O734; O766
DOI:
10.3969/j.issn.1000-5013.2001.03.011
摘要:
利用顺磁共振谱、红外光谱和热谱等方法,研究明溪蓝宝石的结构特性 .分析结果表明,Fe主要以 Fe3 + 的形式存在,Fe3 + 的 d- d电子跃迁和 Fe2 + - Ti4 +,O- Fe间电荷转移是致色的主要因素 .浓度差可以作为扩散动力,高温可以加速扩散的实现 .OH-位于晶格中,H的含量与蓝宝石蓝颜色有一定的正相关性 .在改色工艺中,应注重控制 Fe2 +的量和提高气氛中 H的含量,以促进蓝色致色因子的进一步形成,去除杂色,改善蓝宝石的颜色
Abstract:
By using the methods of nuclear magnetic resonance spectrometry and infrared spectrum and thermography, the authors conduct a study on the structural behaviour of sapphire acquiring from Mingxi. As indicated by the results, Fe exists mainly in the form of Fe 3+, d d electron transistion of Fe 3+ and charge transfer between Fe 2+ Ti 4+ and O Fe are the main factors of colouration, concentration difference may serve as motive power of diffusion, and high temperature may accelerate the realization of diffusion. OH - is located between lattice, the content of H is positively correlated with the blue colour of sapphire to a certain degree. In technology of colour change, attention should be paid to the control of Fe 2+ amount and the enhancement of H content in the air, so as to promote further formation of blue coloration factor and to remove parti colour and to improve the colour of sapphire.

参考文献/References:

[1] 马尔富宁 A C, 蔡用成. 矿物的谱学发光和辐射中心 [M]. 重庆:重庆出版社, 1984.56-58.
[2] Moon A R, Phillips M R. Defect clustering and color in Fe Ti:α-Al2O3 [J]. Journal of the American Ceramic Society, 1994(2):356-367.
[3] Nassau K. Gemstone enhancement [M]. London:Butterworths, 1984.43-45.
[4] 石津和彦, 王者福. 实用电子自旋共振简明教程 [M]. 北京:科学出版社, 1988.68-71.

备注/Memo

备注/Memo:
福建省自然科学基金资助项目
更新日期/Last Update: 2014-03-23