Kim Se-Ho, Stephenson Leigh T, Schwarz Torsten, Gault Baptiste
Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung, Max-Planck-Straße 1, 40237 Düsseldorf, Germany.
Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea.
Microsc Microanal. 2023 Jun 9;29(3):890-899. doi: 10.1093/micmic/ozad034.
The developing flexible ultrathin glass for use in foldable displays has attracted widespread attention as an alternative to rigid electronic smartphones. However, the detailed compositional effects of chemically strengthened glass are not well understood. Moreover, the spatially resolved chemistry and depth of the compression layer of tempered glass are far from clear. In this study, commonly used X-ray spectroscopy techniques and atom probe tomography (APT) were used comparatively to investigate the distribution of constituent elements in two representative smartphone glass samples: non- and chemically tempered. APT has enabled sub-nanoscale analyses of alkali metals (Li, Na, K, and Ca) and this demonstrates that APT can be considered as an alternative technique for imaging the chemical distribution in glass for mobile applications.
用于可折叠显示器的柔性超薄玻璃作为刚性电子智能手机的替代品已引起广泛关注。然而，化学强化玻璃的详细成分效应尚未得到充分理解。此外，钢化玻璃压缩层的空间分辨化学性质和深度也远未明确。在本研究中，比较使用了常用的X射线光谱技术和原子探针断层扫描（APT）来研究两种代表性智能手机玻璃样品（未钢化和化学钢化）中组成元素的分布。APT能够对碱金属（锂、钠、钾和钙）进行亚纳米级分析，这表明APT可被视为用于移动应用中玻璃化学分布成像的替代技术。
