离子交换增强玻璃的 EPMA 研究  

EPMA Study of Glasses Strengthened by Ion Exchange

作　　者：王开泰[1] 钱伟君[1] 沈定坤[1] 李汉良[1] 

机构地区：[1]中国科学院上海硅酸盐研究所

出　　处：《无机材料学报》1989年第4期324-329,共6页Journal of Inorganic Materials

摘　　要：应用电子探针研究了两种钠钙硅玻璃经低温离子交换后表面层中 K^+离子的浓度分布与交换条件的关系。结果表明:在离子交换过程中,K^+与 Na^+是一对一交换的;交换层厚度和交换总量都与时间的平方根成正比,与绝过温度间有指数关系。运用 Fick 定律对结果进行了讨论。After low temperature ion exchange,two kinds of soda-lime-silicate glasseswere investigated by EPMA.The relationship between concentration distributions ofK^+ ions in the surface layers and exchange conditions was established.The resultsindicate that the ion exchange between Na^+ and K^+ ions may conduct one toone.The thickness of exchange layers and the amount of the exchange are propor-tional to time square root,and exponential with absolute temperatures.These resu-lts are discussed by means of Fick law.

关 键 词：玻璃 离子交换 电子探针 

分 类 号：TQ171.1[化学工程—玻璃工业]