A novel method for stress evaluation in chemically strengthened glass based on micro-Raman spectroscopy

Nobuaki Terakado, Ryusei Sasaki, Yoshihiro Takahashi, Takumi Fujiwara, Shuji Orihara, Yoshio Orihara

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Chemically strengthened glass is widely used for screen protection in mobile devices, and its strengthening processes and application fields have rapidly diversified. The origin of the strength is residual compressive stress induced by ion exchange, and the stress evaluation has been performed via the photoelastic effect. However, for a deep understanding of the nature of the strength and development of stronger glasses, we need a method directly connected to atomic-scale glass structures. Here, we propose a method based on the “stuffing” effect, where we can determine the residual stress non-contactively and non-destructively with a high spatial resolution using Boson, D1, D2, and A1 peaks in micro-Raman spectra. Finally, we show a plausible depth dependence of the residual stress.

Original languageEnglish
Article number37
JournalCommunications Physics
Volume3
Issue number1
DOIs
Publication statusPublished - 2020 Dec 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'A novel method for stress evaluation in chemically strengthened glass based on micro-Raman spectroscopy'. Together they form a unique fingerprint.

Cite this