Optical and thermal properties of binary calcium phosphate and barium phosphate glasses
Optical and thermal properties of binary calcium phosphate and barium phosphate glasses
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DOI：
10.1016/j.optmat.2004.12.010
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发表时间：
2006-02
影响因子：
3.9
通讯作者：
E.T.Y. Lee;E. R. Taylor
中科院分区：
文献类型：
--
作者：
E.T.Y. Lee;E. R. Taylor
已经制备了分别对应于xCaO-（100−x）P2 O 5和xBaO-（100−x）P2 O 5的二元磷酸钙和磷酸钡玻璃，其范围为20 μ m × 50 μ m。光学和热学性能的研究表明，随着改性氧化物CaO和BaO用量的增加，折射率（n）和玻璃化转变温度（Tg）呈现最小值，热膨胀系数（α）和热光系数（dn/dT）呈现单调变化。α>9×10−6/°C是磷酸钙和磷酸钡玻璃呈现负dn/dT的必要条件。
Binary calcium phosphate and barium phosphate glasses corresponding to xCaO–(100−x)P2O5and xBaO–(100−x)P2O5, respectively, have been prepared in the range of 20⩽x⩽50. Assessment of the optical and thermal properties reveal that refractive index (n) and glass transition temperature (Tg) show a minima while thermal expansion coefficient (α) and thermo-optic coefficient (dn/dT) change monotonically as the amount of modifying oxides, CaO and BaO, increase. α>9×10−6/°C is required for the calcium phosphate and barium phosphate glasses to exhibit negative dn/dT.