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Dependence of R fluorescence lines of rubies on Cr3+ concentration at various temperatures, with implications for pressure calibrations in experimental apparatus
Rong Gao;   Heping Li;   Jingtai Zhao
2015
Source PublicationAmerican Mineralogists
Volume100Pages:1554–1561
Abstract

The R fluorescence lines of rubies that contain 0.022, 0.068, 0.211, 0.279, 0.556, 1.221, and 1.676 wt% of Cr2O3 were measured at temperatures of 100–600 K and at atmospheric pressure. The R1 line wavenumbers of all of the ruby samples shifted linearly as the temperature increased from 298 to 600 K at atmospheric pressure, and the temperature dependence increased from −0.157 ± 0.001 cm−1/K to −0.149 ± 0.001 cm−1/K as the Cr2O3 content in the rubies increased from 0.022 to 1.676 wt%, which suggests a significant dependence on Cr3+ concentration. At room temperature and atmospheric pressure, the full-width at half maximum (FWHM) of the peak height of the R lines also appears to be linearly related to the Cr3+ concentration. The relative intensity ratios of the R2 to R1 lines (I2/I1) of ruby samples with different Cr3+ concentrations show several non-linear variations with temperature from 100 to 600 K, and the maximum values, (I2/I1)max, occur near room temperature. The effect of Cr3+ doping on the temperature dependence of the R line wavenumbers should be considered when rubies are used to calibrate the pressure or temperature in high-pressure and high-temperature experiments.

Keywordr Fluorescence Lines pressure Calibration temperature Correction Ruby cr2o3 Content
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10393
Collection地球内部物质高温高压实验室
Affiliation1.Key Laboratory of High-temperature and High-Pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou Province, 550002, P.R. China
2.Key Laboratory of Transparent Opto-Functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. China
3.School of Materials Science and Engineering, Shanghai University, Shanghai 200072, P.R. China
Recommended Citation
GB/T 7714
Rong Gao; Heping Li; Jingtai Zhao. Dependence of R fluorescence lines of rubies on Cr3+ concentration at various temperatures, with implications for pressure calibrations in experimental apparatus[J]. American Mineralogists,2015,100:1554–1561.
APA Rong Gao; Heping Li; Jingtai Zhao.(2015).Dependence of R fluorescence lines of rubies on Cr3+ concentration at various temperatures, with implications for pressure calibrations in experimental apparatus.American Mineralogists,100,1554–1561.
MLA Rong Gao; Heping Li; Jingtai Zhao."Dependence of R fluorescence lines of rubies on Cr3+ concentration at various temperatures, with implications for pressure calibrations in experimental apparatus".American Mineralogists 100(2015):1554–1561.
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