錫硼磷酸鹽玻璃之性質研究

本研究以錫磷酸鹽(SnO-P2O5)玻璃系統為基礎，添加不同含量之B2O3，探討B2O3對此系列玻璃之物理性質、結構及光學性質的影響。由實驗結果得知此系列玻璃在未添加B2O3時之玻璃轉換溫度(Tg)為271℃、化學耐久性為1.03×10^(-5)g/cm^2-min、穿透率在波長780nm為82.3%；隨B2O3含量的添加，硼原子可取代磷原子四面體中心位置，產生BPO4結構。可使玻璃轉換溫度(Tg)隨之上升，並且能優化其化學耐久性；但其密度、膨脹係數與折射率則有下降趨勢。此系列玻璃之可見光穿透光譜與耐水性量測結果得知添加10 mole% B2O3可達到此系列玻璃之相對最大的穿透率與最低的玻璃溶解速率，分別為87%、2.5×10^(-6)g/平方公分-min；當含量到達16 mole%時，穿透率僅為77%，而玻璃溶解速率則升為4.3×10^(-6)g/平方公分-min。結果顯示少量的添加B2O3雖然會使折射率下降，卻可以使玻璃的化學耐久性獲得改善。

關鍵字

光學玻璃；磷酸鹽玻璃； B2O3

並列摘要

In this report, physical, thermal, optical properties and structure of SnO-P2O5 glasses with different concentration of B2O3 (0~16 mole%) were investigated. For SnO-P2O5 glasses without B2O3, the glass transition temperature (Tg) is 271℃. The dissolution rate is 1.03×10^(-5) mg/cm^2•min and the UV-transmittance is 82.3% at wavelength 780 nm. When B2O3 added to SnO-P2O5 based glasses, the boron ions are replaced by phosphorous ions. Therefore, the structure of BPO4 forms in the glass network. According to experiment results, the transmittance and dissolution rate of the glass with 10 mole%B2O3 are 87% and 2.45×10^(-6) mg/cm^2•min, respectively. However, when the concentration of B2O3 up to 16 mole%, the transmittance and refractive index are obviously decreased and the dissolution rate gets worse.

並列關鍵字

optical glass ； phosphate glass ； B2O3

參考文獻

Takebe, H.,Nonaka, W.,Kubo, T.,Cha, J.,Kuwabara, M.(2007).Preparation and Properties of Transparent SnO-P2O5 Glasses.J. Phys. and Chem. Solids.68,983-986.