摘要
本研究制备了以V_2O_5、P_2O_5、B_2O_3为基体,掺杂Na_2O、Li_2O、CuO、Sb_2O_3、B_2O_3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Na_2O、Li_2O、Sb_2O_3和B_2O_3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B_2O_3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>B_2O_3>Sb_2O_3>Na_2O>Li_2O;耐酸性影响程度为:B_2O_3>CuO>Sb_2O_3>Na_2O>Li_2O;耐碱性的影响程度为:Sb_2O_3>Na_2O>CuO>B_2O_3≈Li_2O。配比为5%Na_2O,5%Li_2O,3.5%CuO,10%Sb_2O_3和5%B_2O_3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 V_2O_5-P_2O_5-B_2O_3 glass using V_2O_5、P_2O_5 and B_2O_3 as a matrix recombined with different oxides(Na_2O、Li_2O、CuO、Sb_2O_3、B_2O_3)was fabricated.The influence of oxide on the network structure,the characteristic temperature,the thermal expansion coefficient and the chemical stability of the V_2O_5-P_2O_5-B_2O_3 glass was investigated.Results show that the characteristic temperature of the V_2O_5-P_2O_5-B_2O_3 glass is obviously decreased by CuO doping and a contrary trend is obtained by doping Na_2O,Li_2O,Sb_2O_3 and B_2O_3.The thermal expansion coefficient of V_2O_5-P_2O_5-B_2O_3 glass doped with B_2O_3 is greatly reduced.The effect of oxides on the water resistance of the V_2O_5-P_2O_5-B_2O_3 glass is as follows:CuO>B_2O_3>Sb_2O_3>Na_2O>Li_2O.The effect of oxides on acid resistance is B_2O_3>CuO>Sb_2O_3>Na_2O>Li_2O;and the effect of oxides on alkali resistance is:Sb_2O_3>Na_2O>CuO> B_2O_3≈Li_2O.The thermal expansion coefficient of V_2O_5-P_2O_5-B_2O_3 glass dopped with the oxides of 5% Na_2O,5% Li_2O,3.5% CuO,10% Sb_2O_3 and 5%B_2O_3 is close to that of alumina ceramic substrate.It has a high corrosion resistance and can be used in electronic paste.
引文
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