氧化物掺杂对钒磷铋系玻璃性能的影响

Effect of Oxide Doping on Properties of V2O5-P2O5-Bi2O3 Glass

本研究制备了以V2O5、P2O5、B2O3为基体,掺杂Na2O、Li2O、CuO、Sb2O3、B2O3为辅助原料的低熔点钒磷铋系玻璃。研究了氧化物的添加对钒磷铋系玻璃的骨架网络结构、特征温度、热膨胀系数和化学稳定性的影响。实验结果表明:CuO的添加使钒磷铋系玻璃特征温度明显下降,而Na2O、Li2O、Sb2O3和B2O3的添加使钒磷铋系玻璃特征温度均有不同程度的上升。添加B2O3能够大幅度降低钒磷铋系玻璃的热膨胀系数。氧化物对钒磷铋系玻璃的耐水性影响程度为:CuO>B2O3>Sb2O3>Na2O>Li2O;耐酸性影响程度为:B2O3>CuO>Sb2O3>Na2O>Li2O;耐碱性的影响程度为:Sb2O3>Na2O>CuO>B2O3≈Li2O。配比为5%Na2O,5%Li2O,3.5%CuO,10%Sb2O3和5%B2O3制得的钒磷铋系玻璃,热膨胀系数更接近于氧化铝陶瓷基板,拥有较高的耐腐蚀性,能够用于电子浆料中。

Low melting-point V2O5-P2O5-B2O3 glass using V2O5、P2O5 and B2O3 as a matrix recombined with different oxides(Na2O、Li2O、CuO、Sb2O3、B2O3)was fabricated.The influence of oxide on the network structure,the characteristic temperature,the thermal expansion coefficient and the chemical stability of the V2O5-P2O5-B2O3 glass was investigated.Results show that the characteristic temperature of the V2O5-P2O5-B2O3 glass is obviously decreased by CuO doping and a contrary trend is obtained by doping Na2O,Li2O,Sb2O3 and B2O3.The thermal expansion coefficient of V2O5-P2O5-B2O3 glass doped with B2O3 is greatly reduced.The effect of oxides on the water resistance of the V2O5-P2O5-B2O3 glass is as follows:CuOB2O3Sb2O3Na2OLi2O.The effect of oxides on acid resistance is B2O3CuOSb2O3Na2OLi2O;and the effect of oxides on alkali resistance is:Sb2O3Na2OCuO B2O3≈Li2O.The thermal expansion coefficient of V2O5-P2O5-B2O3 glass dopped with the oxides of 5% Na2O,5% Li2O,3.5% CuO,10% Sb2O3 and 5%B2O3 is close to that of alumina ceramic substrate.It has a high corrosion resistance and can be used in electronic paste.