摘要
本工作研究了R_2O(RO)-B_2O_3-Al_2O_3-SiO_2系玻璃基础组成与光色行为间的关系。研究结果表明:(1)提出玻璃结构因子[ψ](满足0<[ψ]<1)作为基础玻璃光色性的必要条件和充分条件的半定量判别式。当0<[ψ]≤0.5时,玻璃光色性呈现良好的规律性。(2)玻璃T_D值温度系数f(T_D)与[ψ]有关。当[ψ]=0.28～0.35时,玻璃f(T_D)为最低值。(3)在恒定[ψ]和R_2O/B_2O_3时,玻璃的T_D,f(T_D)值随R_2O中α(Li/K)增加而呈线性下降。
The relationship between the basic composition of glass and its photochromic proper- ties has been studied for the AgX containing glasses in R_2O(RO)-B_2O_3-Al_2O_3-SiO_2 sys- tem. The results show that: (1) A structural factor [ψ] proposed in the range of 0<[ψ]<1 can be used as a semi-quantitative parameter for indicating the photochromic property of basic glasses. For example, when 0<[ψ]<0.5, the glasses exhibit excellent photochromic behavior with regularity.(2)Temperature coefficientf(T_D) of T_Dvalue is closely related to the [ψ] value. For instance, when [ψ]=0.28～0.35, f(T_D) value becomes a minimum.(3) Let [ψ] value and R_2O/B_2O_3 ratio be constant, then f(T_D) value will decrease linearly with increasing α(Li/K) ratio.
关键词
结构因子
光色性能
温度
玻璃
structural factor
photochromic property
temperature coefficient
