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首页> 外文期刊>European Journal of Glass Science and Technology, PartB. Physics and Chemistry of Glasses >Conductivity study of phosphate and oxynitride phosphate glasses in the system Li_2O-Na_2O-PbO-P_2O_5
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Conductivity study of phosphate and oxynitride phosphate glasses in the system Li_2O-Na_2O-PbO-P_2O_5

机译：Li_2O-Na_2O-PbO-P_2O_5体系中磷酸盐和氧氮化磷酸盐玻璃的电导率研究

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摘要

The conductivity of alkali lead metaphosphate glasses, Li_(0.5-y)Na_(0.5-y)Pb_yPO_3, and oxynitride metaphosphate glasses obtained by ammonolysis of the base 25 mol percent PbO glass, Li_(0.25)Na_(0.25)Pb_(0.25)PO_(3-3x/2)N_x, has been studied by complex impedance spectroscopy. The conductivity of the alkali lead phosphate glasses decreases as a function of the PbO content. However, there is not appreciable change from 25 to 40 mol percent PbO glasses. Changes in conductivity are explained through the alkali concentration, the mixed alkali effect and the structural changes occurring in the glass network as the PbO content increases. On the other hand, the conductivity of the oxynitride phosphate glasses decreases as the nitrogen content increases into the glass network, due to the increased bonding density and covalent character of the glass network after the nitrogen/oxygen substitution.
机译：碱式偏磷酸铅玻璃Li_（0.5-y）Na_（0.5-y）Pb_yPO_3的电导率和通过碱解25％摩尔百分比的PbO玻璃Li_（0.25）Na_（0.25）Pb_（0.25）氨化得到的偏氧氮玻璃PO_（3-3x / 2）N_x已通过复阻抗谱进行了研究。碱式磷酸铅玻璃的电导率随PbO含量的降低而降低。但是，从25摩尔％到40摩​​尔％的PbO玻璃没有明显的变化。电导率的变化通过碱浓度，混合碱效应以及随着PbO含量增加而在玻璃网络中发生的结构变化来解释。另一方面，由于氮/氧取代后玻璃网络的增加的结合密度和共价特性，随着氮含量增加进入玻璃网络，磷酸氧氮玻璃的电导率降低。

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