A low-melting group of glass was prepared to examine the function of MoO3 on the synthesis and properties of sodium calcium fluorophosphate glasses. The glass specimens were synthesized based on Na₂OCaOMoO₃P₂O₅CaF₂ system by the melting quenching method. The effect of adding MoO₃ at the expense of CaO on the structure, mechanical, thermal, and chemical properties of the glasses was studied. The FTIR results proved that there is no evidence of a formation of the Mo-O linkages in the infrared spectral range. The density and molar volume of the prepared glasses were studied. Glass density enhanced whereas molar volume declined with MoO₃ content. The Vickers hardness of the glass specimens was found to be decreasing with the MoO₃/CaO replacement percent due to the weakening of the glass structure. The dilatometric thermal measurements showed the decrease of both transition temperature T_g and softening temperature Ts with MoO₃ content. However, the thermal expansion coefficients values were increased from 101 × 10⁻⁷ to 110 × 10⁻⁷/°C¹. The chemical solubility of the prepared glasses was examined by immersing in distilled water for 21 days. The results showed that the MoO₃/CaO replacement helped to improve the glass solubility significantly. So, depending on the properties examined the glasses have the potential to be used as promising low-melting sealing materials.

制备了低熔点玻璃，以检查MoO3对氟磷酸钠钙玻璃的合成和性能的作用。基于Na ₂ O CaO MoO ₃ P ₂ O ₅ CaF ₂体系，通过熔融淬火法合成玻璃样品。研究了以CaO为代价添加MoO ₃对玻璃的结构，机械，热学和化学性质的影响。FTIR结果证明没有证据表明在红外光谱范围内形成了Mo-O键。研究了所制备玻璃的密度和摩尔体积。MoO _3使玻璃密度增加，而摩尔体积减少内容。发现由于玻璃结构的弱化，玻璃样品的维氏硬度随着MoO ₃ / CaO置换百分比而降低。膨胀热测量表明，随着MoO ₃含量的降低，转变温度T _g和软化温度Ts均降低。但是，热膨胀系数值从101×10 ^-7增加到110×10 ^-7 /℃ ¹。通过将其浸入蒸馏水中21天来检查制备的玻璃的化学溶解性。结果表明，MoO ₃/ CaO替代有助于显着提高玻璃溶解度。因此，根据所检查的性能，玻璃有可能用作有前途的低熔点密封材料。