Product design for strong cover glass |
| |
| Authors: | Hiroyuki Ohkawa Yusuke Kobayashi Syusaku Akiba Kazutaka Hayashi Tetsuya Nakashima Aya Nakagawa Hitoshi Saiki Naohiko Ishimaru |
| |
| Affiliation: | Asahi Glass Co. Ltd., Chiyoda‐ku, Tokyo, Japan |
| |
| Abstract: | Strength is one of the most important properties of cover glass. In this study, fracture analysis is used to classify the breakage mode of cover glass into four typical modes. Moreover, the mechanism and evaluation method of each mode are investigated. Consequently, a chemical strengthening design with high compressive stress (CS) and low center tension (CT) is obtained. In addition, processing design is determined to be an important factor. Fining of edge processing and surface polishing after chemical strengthening are shown to enhance the edge and surface strength, respectively. |
| |
| Keywords: | glass cover glass chemical strengthening |
|
|
