不同熔盐制造离子扩散型抗菌陶瓷中银离子的扩散

SILVER ION DIFFUSION IN DIFFUSION TYPE ANTIMICROBIAL CERAMIC PRODUCTION USING DIFFERENT MOLTEN SALTS

本文对以AgNO3:KNO3和AgNO3:NaNO3熔盐制造抗菌陶瓷中的银在釉中的扩散进行了研究。用电子探针对银的分布进行了分析,给出了用误差函数拟合描述扩散过程的方法,实验发现对同一种釉使用AgNO3:KNO3时银的扩散要比 AgNO3:NaNO3快得多,两种情况下银的表现扩散系数分别为1．6×10-11L-1．3×10-10cm2S-1。

Silver ion diffusion in glaze in diffusion type antimicrobial ceramic production using molten AgNO3：NaNO3 and AgNO3：KNO3 as the silver source was studied, Silver distributions were analyzed by electron probe microanalyzer. Error function fitting method for characterizing silver diffusion is given. It was found that silver diffusion with AgNO3：KNO3 was more rapid than with AgNO3：NaNO3. The apparent silver ion diffusion coefficients in glazes are 1.6×10^11～1.3×10^10cm^2S^-1 and 1.3×10^-11～1.4×10^-10cm^2s^-1 for the two processes respectively.