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Technique Reveals Glass Surface Damage at the Nanolevel

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A spectroscopy technique has enabled the study of nanolevel imperfections in the surface of glass. The process could lead to improvements in glass products such as electronic displays and vehicle windshields, according to a team of international researchers that aims to produce a technique capable of detecting the kind of structure change that takes place around nanolevel indentations on the surface of glass. Such an approach would shed light on the properties that determine the strength of glass. One of the main focuses of Penn State professor of chemical engineering Seong Kim’s...Read full article

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    Published: May 2021
    Glossary
    glass
    A noncrystalline, inorganic mixture of various metallic oxides fused by heating with glassifiers such as silica, or boric or phosphoric oxides. Common window or bottle glass is a mixture of soda, lime and sand, melted and cast, rolled or blown to shape. Most glasses are transparent in the visible spectrum and up to about 2.5 µm in the infrared, but some are opaque such as natural obsidian; these are, nevertheless, useful as mirror blanks. Traces of some elements such as cobalt, copper and...
    scratch
    A defect on a polished optical surface whose length is many times its width. Block reek is a chainlike scratch formed in polishing. A runner cut is a curved scratch caused by grinding. A sleek is a hairline scratch. A crush or rub is a surface scratch or scratches usually caused by mishandling.
    surface
    1. In optics, one of the exterior faces of an optical element. 2. The process of grinding or generating the face of an optical element.
    Research & TechnologyspectroscopyglassOpticsPenn StateMaterials Research Institute at Penn StatePennsylvania State UniversityActa Materialiascratchscratchessurfacesurface aberrationssurface analysisSeong KimSlava RotkinAmericasTech Pulse

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