Transparent alumina: A light-scattering model
Transparent alumina: A light-scattering model
复制标题
DOI：
10.1111/j.1151-2916.2003.tb03325.x
复制
发表时间：
2003-03-01
影响因子：
3.9
通讯作者：
van Bruggen, MPB
中科院分区：
文献类型：
--
作者：
Apetz, R;van Bruggen, MPB
基于Rayleigh-Gans-Debye光散射理论建立了一个描述由双折射晶体组成的细晶、全致密多晶陶瓷光透射特性的模型。该模型扩展了基于几何光学的光透射模型，该模型仅适用于粗晶粒的微观结构，适用于更小的晶体尺寸。我们通过测量完全致密（>99.99%），多晶α-Al 2 O3（PCA）的平均晶体尺寸范围从60到0.3妈妈的光透射特性来验证我们的模型。具有小晶体尺寸的PCA样品表现出显著的透明度（
A model based on Rayleigh-Gans-Debye light-scattering theory has been developed to describe the light transmission properties of fine-grained, fully dense, polycrystalline ceramics consisting of birefringent crystals. This model extends light transmission models based on geometrical optics, which are valid only for coarse-grained microstructures, to smaller crystal sizes. We verify our model by measuring the light transmission properties of fully dense (>99.99%), polycrystalline alpha-Al2O3 (PCA) with mean crystal sizes ranging from 60 to 0.3 mum. The remarkable transparency exhibited by PCA samples with small crystal sizes (