节点文献
表面微晶化对Na2O-Al2O3-SiO2系统玻璃的强化
CHEMICAL STRENGTHENING OF Na2O3Al2O2-SiO2 SYSTEM GLASSES BY SURFACE CONTROLLED CRYSTALLIZATION
【摘要】 本文系统报导了盐浴浸渍工艺,特别是不同组成的Li2SO4-Na2SO4二元盐浴和Li2SO4-Na2SO4-K2SO4三元盐浴对抗折强度和磨伤强度的影响。应用电子探针和光弹性法确定了离子交换层厚度,并计算了Li+(?)Na+离子互扩散系数。应用X射线衍射相证实了β锂霞石不同晶面的长大速度与离子源组成、处理温度等因素有关。对β锂霞石的快速形成和基础玻璃结构间的关系,也应用X射线衍射相和红外光谱数据进行了讨论。
【Abstract】 The effects of ion-exchage treatment technology, especially salt bath of different compositions in the binary system Li2SO4-Na2SO4 and the ternary system Li2SO4-Na2SO4-K2SO4, on modulus of rupture of unabraded and abraded samples are systematically presented. The concetration-distance profile is determined by the electron microprobe and the photoelastic method and, at the same time diffusion coefficient of Li+(?)Na+ ion is calulated. It is demonstrated that the growth of different crystal faces of β-eucryptite strongly depends on the salt bath composition, treatment temperature, etc. The correlation between nucleation and growth of β-eucryptite, structure of base glass is discussed based on the data obtained in X-ray diffraction and infrared absorption or reflectance spectra.
- 【文献出处】 硅酸盐学报 ,Journal of The Chinese Ceramic Society , 编辑部邮箱 ,1985年01期
- 【被引频次】9
- 【下载频次】167