Effect of ZnO on the properties of (100-x)(NaPO3)-xZnO glasses
Effect of ZnO on the properties of (100-x)(NaPO3)-xZnO glasses
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DOI：
10.1016/s0022-3093(97)00444-4
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发表时间：
1998-01-01
影响因子：
3.5
通讯作者：
Delaval, R
中科院分区：
文献类型：
--
作者：
Montagne, L;Palavit, G;Delaval, R
用常规熔融法制备了0小于等于x小于等于33.3% mol%的（100-x）(NaPO3)-xZnO体系玻璃。（100-x）(NaPO3)-xZnO玻璃的密度和折射率随x的增加呈线性增加，这与ZnO的网络修饰行为一致。当x < 15%时，由于锌-氧键能非常弱，磷酸盐链长度的减小影响了玻璃化转变温度、黏性流动活化能和水性耐久性。对于较大的x(15小于或等于x小于或等于33.3)，这些性质增加，因为锌-氧键的共价特性使锌-磷酸盐混合网络的形成成为可能。(C) 1998爱思唯尔科学有限公司
Glasses of the (100-x)(NaPO3)-xZnO system with 0 less than or equal to x less than or equal to 33.3 mol% have been prepared with a conventional melting procedure. The density and index of refraction of (100-x)(NaPO3)-xZnO glasses increases linearly with x, in accordance with the network modifying behavior of ZnO. For x less than 15%, the glass transition temperature, the activation energy for viscous flow and the aqueous durability are affected by the decrease in phosphate chain length, owing to the very weak zinc-oxygen bonding energy. For larger x (15 less than or equal to x less than or equal to 33.3), these properties increase because the covalent character of zinc-oxygen bonds enables the formation of a mixed zinc-phosphate network. (C) 1998 Elsevier Science B.V.