Effect of pores on transmission properties of transparent ceramics
Effect of pores on transmission properties of transparent ceramics
复制标题
孔隙对透明陶瓷透射性能的影响
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
P. China
中科院分区：
文献类型：
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作者：
Qing Li;Guoping Zhang;Hao Wang;Li;P. China
透明陶瓷的微结构缺陷引起的光散射会造成光损失，影响其传输性能。利用米氏理论研究了孔隙对透射率的影响。计算了透明铝酸镁尖晶石的透射率与波长、孔径、分布宽度和孔隙率的关系。结果表明，随波长的增加，直线透射率逐渐增大。孔隙度对透光率的影响较大，随着孔隙度的增大，透光率减小。孔径接近于光波长时，透射率最小。此外，应该注意的是，随光谱可见部分孔径分布宽度的减小，直线透射率增加。
Light scattering by the microstructure defects of transparent ceramics causes losses of light and has an effect on the transmission properties. Effects of pores on transmission were studied using the Mie theory. The in-line transmissions of transparent magnesium aluminate spinel were calculated as a function of wavelength, pore size, width of distribution and porosity. The results show that the in-line transmission gradually increases with an increase in wavelength. Porosity has great impact as the transmission decreases with the increasing of porosity. The minimum of the transmissions were observed when the pore size close to the optical wavelength. Furthermore, it should be noted that the in-line transmission increases with decreasing of the width in pore size distribution in the visible part of the spectrum.