锂铝硅透明微晶玻璃着色研究

引入Cr2O3、CoO、NiO、MnO2等过渡金属氧化物对低膨胀锂铝硅透明微晶玻璃进行着色研究，结果表明，微晶玻璃与其母体玻璃相比，颜色有明显的不同，主波长向长波方向移动。研究还发现，在从核化阶段到晶化阶段的过程中颜色变化最为明显，而在核化阶段和晶化阶段颜色没有发生明显的变化。同时运用配位场理论和光散射原理来解释这种颜色变化的原因。

Study on the Colouration of Li2O-Al2O3-SiO2 Transparent Glass Ceramics

The transition metal oxides, such as Cr 2O 3,CoO, NiO and MnO 2, were introduced to the transparent Li 2O-Al 2O 3-SiO 2 glass ceramics. The results show that the color of the glass ceramics differs significantly from that of their parent glasses,and the main wave-length of glass ceramics is longer than that of their parent glasses. The investigation on the heat treatment processes shows that the most obvious change of color occurs in the process from the nucleation to the crystallization. These phenomena may be explained by ligand field theory as well as light-scattering effect.