对氟镓铟基玻璃析晶稳定性和结构的影响

Effect of P2O5 Contents on Crystallization Stability and Structure of Ga and InBased Fluoride Glasses

摘要:

以20GaF315InF320CdF215ZnF210SnF220PbF2(GICZSP)为基玻璃,用P2O5替代等摩尔含量CdF2,以改善玻璃的抗析晶能力.利用差示扫描量热分析、拉曼光谱和X射线衍射分析手段,表征不同含量P2O5对玻璃抗析晶性能及结构的影响.结果表明,P2O5的引入提高了玻璃的析晶稳定性.P2O5在玻璃中以不含PO双键的［PO4-4,Q0］四面体存在.随着P2O5量的增加,新出现了M［O,F］6八面体结构.

Abstract:

To improve the ability of anticrystallization,P2O5 was introduced to substitute CdF2 in the fluoride glass,consisting of 20GaF315InF320CdF215ZnF210SnF220PbF2(GICZSP).The effect of P2O5 contents on crystallization stability and structure was studied by differential scanning calorimetry (DSC),Raman spectroscopy and XRay Diffraction analyses (XRD).The results indicate that P2O5 can improve the crystallization stability.P2O5 exists as ［PO4-4,Q0］ tetrahedron which has no PO bond.When the amount of P2O5 being increased,a new M［O,F］6 octahedral structure emerges.