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SURFACE AND INTERFACE MODIFICATION OF SILICATE GLASS VIA SUPERCRITICAL WAFER

机译：通过超临界晶片对硅酸盐玻璃的表面和界面改性

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摘要

The reaction between supercritical water and silicate glasses was analyzed using various surface analysis methods. The alkali silicate glasses with a diameter of 1 inch were treated over 300℃ inside the chamber and cooled into room temperature after the treatment. The surface of the glasses was severely etched especially over 400℃. which is near the supercritical point of water; 374℃, 22.1 MPa. Not only the formation of pores but also the precipitation of alkali in the glass were observed from the image of secondary electron microscopy (SEM) and EPMA analysis. An optical interferometry microscope revealed that the average roughness after the treatment dramatically increased depending on the increase oI treatment temperature. The polishing test of the treated glass indicated that the mechanical properties at the surface of the treated glass dramatically decreased due to the reaction between supercritical water and glass.
机译：使用各种表面分析方法分析了超临界水与硅酸盐玻璃之间的反应。将直径为1英寸的碱金属硅酸盐玻璃在室内进行300℃的处理，处理后冷却至室温。玻璃表面被严重腐蚀，尤其是在400℃以上。在水的超临界点附近； 374℃，22.1 MPa。从二次电子显微镜（SEM）和EPMA分析的图像中不仅观察到孔的形成，而且观察到玻璃中碱的沉淀。光学干涉显微镜显示，处理后的平均粗糙度根据处理温度的升高而急剧增加。处理过的玻璃的抛光测试表明，由于超临界水与玻璃之间的反应，处理后的玻璃表面的机械性能急剧下降。

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