钠钙铝镁硅酸盐玻璃和碱铅硅酸盐玻璃的风化

本文采用了AAS、IRRS、XPS、EPM、SEM和EPMA研究了影响两种钠钙铝镁玻璃(浮法和压延玻璃)及两种铅玻璃(高铅光学和中铅器皿玻璃)风化的因素(温度、湿度、时间)。在相同的风化条件下,含碱量较高的中铅器皿玻璃最易风化。求出四种玻璃风化析碱量与温度和时间的经验式,并得出高铅玻璃风化前后表面桥氧、非桥氧和自由氧的比例。对钠钙玻璃和铅玻璃的风化机理也进行了讨论。     

钠钙硅玻璃表面改性的ESCA研究

本文通过处理液浸渍钠钙硅系统玻璃对其表面进行改性，采用ＥＳＣＡ研究了钠钙硅系统玻璃在表面改性前后其表面结构的变化。研究表明：钠钙硅系统玻璃在表面改性后其表面形成了一层有机物多分子层，由此探讨了钠钙硅系统玻璃表面改性的机理。     

银纳米颗粒在钠钙硅酸盐玻璃中的应力分析

Ag K边X射线吸收精细结构谱分析显示,包裹在钠钙硅酸盐玻璃中的银纳米颗粒的Ag-Ag原子间最近邻距离大于体材料中Ag的间距,说明此时Ag晶格膨胀.晶格膨胀程度依赖于Ag纳米颗粒掺杂玻璃的制备条件.晶格膨胀表明:包裹在钠钙硅酸盐玻璃中的银纳米颗粒处于张应力状态,这主要是由于Ag纳米颗粒与钠钙硅酸盐玻璃基质热失配造成的.     

钠钙硅酸盐玻璃和铅玻璃的离子溅射抛光

采用20keV的离子注入机对钠钙硅酸盐玻璃和中铅玻璃进行离子溅射抛光.玻璃样品在N 离子剂量为1×1014ions/cm2、1×1017ions/cm2,束流强度150μA/cm2于室温下抛光.讨论了离子溅射抛光后玻璃表面的形貌.     

钠钙铝酸盐玻璃的形成及性质

在钠钙铝酸盐系统中可以生产含有Ｎａ２Ｏ０￣１０ｍｏｌ％，ＣａＯ５０￣７０ｍｏｌ％，Ａｌ２Ｏ３３０￣４０ｍｏｌ％的玻璃。该系统的形成能力相对地不受钠含量的影响，直到钠迅速减少接近１０ｍｏｌ％为止。Ｎａ２Ｏ含量〈１０ｍｏｌ％玻璃的结晶可导致钙铝酸盐二元系统中可出现的钙铝酸盐相的形成。用Ｎａ２Ｏ置换ＣａＯ可减少了Ｔｇ约１００Ｋ，密度和折射率少量减少，热膨胀系数少量增大。性能的变化与以前的钙铝酸盐玻璃的结     

硼硅酸盐玻璃与钠钙硅玻璃浮法成型的对比研究

总结了浮法成型工艺的特点,介绍了浮法工艺对普通钠钙硅玻璃的要求,在此基础上提出从玻璃的熔化和成型温度要求,粘度-温度曲线要求,析晶温度上限要求等几个方面探讨耐热高强硼硅酸盐平板玻璃浮法成型的要求.     

钠钙玻璃熔窑窑底结构

如今，熔窑窑底的设计几乎同熔窑本身一样有多种不同的结构形式。实际上，根据要生产的玻璃种类；日拉引量和计划的窑龄，窑底结构可以有几乎无限多的变化。ＢＣｒｅｌｅｙ和ＣＮａｔｕｒｅｌ在本文中对一些耐火材料的比较研究进行了探讨。     

钠钙玻璃药瓶的耐水性

钠钙玻璃输液药瓶是与人的生命攸关的包装产品,内表面耐水性符合HC2级,玻璃颗粒耐水性标志HGB值控制在限定值之内,在存储运输装卸过程中要避免发生碰撞。它是输液行业中盛装生理盐水、葡萄糖溶液等药液最安全的包装品。     

采用浮法工艺生产浮法玻璃用耐火材料

论述了在浮法工艺条件下锡槽底部座砖的反应机理。为了满足现代化砖种的物理性能，在砖结构中采用高抗侵蚀的材料，这导致浮法槽中构成的改变。     

Changes in Oxidizing Potential of Glass Melt Upon Replacing Raw Materials in Production of Photochromic Glass

Variations in the redox potential of glass melt in production of photochromic glasses in the case of partial of total replacement of soda ash and alumina by natural aluminosilicate materials are considered.     

Use of Local Raw Materials in the Production of Light-Resisting Float Glass

The experience of the Saratov Institute of Glass in replacing Tashlinskoe sand by local sand with a variable chemical composition in the production of light- and heat-protective float glass is described. Practical recommendations are presented.     

Use of Self-Propagating Crystallization Phenomenon in the Production of Glass Ceramic Materials

The possibility of using self-propagating crystallization accompanied by the propagation of the crystallization heat wave front in the transition of foam silica produced on the basis of compositions in the system CaO – MgO – Al₂O₃ – SiO₂ by the reducing melting method with melt separation and subsequent cooling of the silicate component under a thermal shock from the x-ray-amorphous state to the crystalline state is studied. The characteristics of the thermal wave are identified, the dependence of the velocity of propagation of the thermal wave on the dispersion of the foam silicate and molding pressure is established.     

玻璃原料细粉产生原因及对生产的影响

介绍了玻璃原料细粉的定义、种类及产生的原因,根据各种细粉自身的特点分别论述了在生产过程中所产生的影响,并指出相应的改进措施。     

Nonconventional Production of Glass Nanofibers by Laser Spinning

The production of very long glass nanofibers with lengths up to several centimeters was demonstrated using the Laser Spinning technique. It employs a laser to melt a small volume of a solid precursor material while a high‐pressure gas jet drags the molten material away. Thus, the molten material forms glass fibers as result of its viscous elongation by the drag force and rapid cooling promoted by the gas jet. High quantities of nanofibers can be quickly produced with tailored chemical compositions. Previously reported analyses of the process revealed that the dimensions and temperature of the molten volume together with its viscosity to surface tension ratio are the main factors governing the formation of the nanofibers. Therefore, the influence of the working conditions on these parameters must be understood to control the efficiency of the process. In this work, we demonstrate that the surface tension of the melt can be controlled independently of its temperature, and consequently of its viscosity, by adjusting the relative humidity of the gas jet. This outcome increases the productivity of the process and expands its capability for the synthesis of glass nanofibers from fragile melts.     

乳白玻璃料生产

论述了乳白玻璃制品中产生透明料、有色条纹、耐温差不合格等缺陷的原因，并对乳白料原料及成分设计、产品缺陷预防及解决措施作了简要评述。     

原料引起的硅质玻璃结石

主要阐述了两种原料引起的方石英玻璃结石的特点和形成机理。提醒玻璃技术人员注意:原料管理和配料管理方面的一些漏洞,可能引起玻璃缺陷,影响玻璃质量,造成经济损失。