The fluorescence and thermoluminescence characteristics of α-Al2O3:C ceramics

doi:10.1088/1674-1056/19/7/077805

中国物理B ›› 2010, Vol. 19 ›› Issue (7): 77805-077805.doi: 10.1088/1674-1056/19/7/077805

The fluorescence and thermoluminescence characteristics of α-Al₂O₃:C ceramics

张斌, 陆神洲, 张浩佳, 杨秋红

School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China

出版日期:2010-07-15 发布日期:2010-07-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 60578041), the Sciences and Technology Commission Foundation of Shanghai, China (Grant No. 08520707300) and the Key Basic Research Project of Science and Technology of Shanghai (Grant No. 09JC1406500).

The fluorescence and thermoluminescence characteristics of $\alpha$-Al₂O₃:C ceramics

Zhang Bin(张斌)^a), Lu Shen-Zhou(陆神洲)^a), Zhang Hao-Jia(张浩佳)^a), and Yang Qiu-Hong(杨秋红)^a)†

School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China

Online:2010-07-15 Published:2010-07-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 60578041), the Sciences and Technology Commission Foundation of Shanghai, China (Grant No. 08520707300) and the Key Basic Research Project of Science and Technology of Shanghai (Grant No. 09JC1406500).

摘要/Abstract

摘要： This paper reports that polycrystalline α-Al₂O₃:C ceramics are fabricated by conventional ceramics process. The excitation, emission spectra, thermoluminescence (TL) and optical stimulated luminescence (OSL) of α-Al₂O₃:C polycrystalline ceramics are investigated. There exists 410nm maximum emission peak which is caused by recombination of an electron with F⁺ centre to produce an excited F centre. The samples show three clear TL glow peaks at 405, 493 and 610K. The attenuation constant of exponentially decaying fast component (τ₁) and slow component(τ₂) of OSL curve are 8.43s and 41.73s, respectively. Those fluorescence and thermoluminescence characteristics are similar with α-Al₂O₃:C crystal.

Abstract: This paper reports that polycrystalline $\alpha$-Al₂O₃:C ceramics are fabricated by conventional ceramics process. The excitation, emission spectra, thermoluminescence (TL) and optical stimulated luminescence (OSL) of $\alpha$-Al₂O₃:C polycrystalline ceramics are investigated. There exists 410nm maximum emission peak which is caused by recombination of an electron with F⁺ centre to produce an excited F centre. The samples show three clear TL glow peaks at 405, 493 and 610K. The attenuation constant of exponentially decaying fast component ($\tau$₁) and slow component($\tau$₂) of OSL curve are 8.43s and 41.73s, respectively. Those fluorescence and thermoluminescence characteristics are similar with $\alpha$-Al₂O₃:C crystal.

Key words: $\alpha$-Al₂O₃:C, ceramics, thermoluminescence, optical stimulated luminescence

中图分类号: (Other solid inorganic materials)

78.55.Hx

78.60.Kn (Thermoluminescence) 81.05.Je (Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides))

张斌, 陆神洲, 张浩佳, 杨秋红. The fluorescence and thermoluminescence characteristics of α-Al₂O₃:C ceramics[J]. 中国物理B, 2010, 19(7): 77805-077805.

Zhang Bin(张斌), Lu Shen-Zhou(陆神洲), Zhang Hao-Jia(张浩佳), and Yang Qiu-Hong(杨秋红). The fluorescence and thermoluminescence characteristics of $\alpha$-Al₂O₃:C ceramics[J]. Chin. Phys. B, 2010, 19(7): 77805-077805.

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The fluorescence and thermoluminescence characteristics of α-Al₂O₃:C ceramics

The fluorescence and thermoluminescence characteristics of $\alpha$-Al₂O₃:C ceramics

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