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Evaluation of Indentation Induced Residual Stress on the Surface of Substrate Glasses for Display
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Title: | Evaluation of Indentation Induced Residual Stress on the Surface of Substrate Glasses for Display |
Other Titles: | ディスプレイ用ガラスにおける圧子押し込み誘起表面残留応力の評価 |
Authors: | NAGAE, Tatsushi1 Browse this author | KITAHARA, Hiromoto2 Browse this author | IKEDA, Ken-ichi3 Browse this author →KAKEN DB | YOSHIDA, Fuyuki4 Browse this author | NAKASHIMA, Hideharu5 Browse this author | ITO, Setsurou6 Browse this author | ABE, Hiroshi7 Browse this author |
Authors(alt): | 長江, 達志1 | 北原, 弘基2 | 池田, 賢一3 | 吉田, 冬樹4 | 中島, 英治5 | 伊藤, 節郎6 | 阿部, 弘7 |
Keywords: | Display glass | Vickers indentation | Residual stress | Molecular dynamics |
Issue Date: | 1-Sep-2002 |
Publisher: | 日本セラミックス協会 |
Journal Title: | Journal of the Ceramic Society of Japan |
Journal Title(alt): | 日本セラミックス協会学術論文誌 |
Volume: | 110 |
Issue: | 1285 |
Start Page: | 834 |
End Page: | 839 |
Publisher DOI: | 10.2109/jcersj.110.834 |
Abstract: | Residual stress field around a Vickers diamond indentation was studied in three commercial glasses with different strain points (Ts=635°C, 570°C and 511°C, respectively). The basis of the experimental technique is to use cracks from a small indentation as a microprobe to measure the residual stress at a specific point around a large indentation and to study the change of the residual stress by heat treatment. Residual tensile and compressive stresses around a large indentation produced by applying the load of 19.6N were distributed up to a distance of about 400μm from the indentation center. For all specimens, the tensile and compressive stresses were about 10 MPa and -50MPa--30MPa, respectively, at a distance of 200μm from the indentation center. The residual stresses decreased by heat treatment at temperatures as low as 300°C below the strain point and became zero by keeping the indented specimen at temperatures close to the strain point of each glass, for 7.2ks. The resistance to decrease in residual stresses against temperature was in the order Si-B-Al-O(Ts=635°C)>Si-Al-O(Ts=570°C)>Si-Ca-Na-O(Ts=511°C) glass. The results were discussed based on the difference of the mobility of constituent ions and flow of glasses. |
Rights: | https://creativecommons.org/licenses/by-nd/4.0/deed.ja |
Type: | article |
URI: | http://hdl.handle.net/2115/75364 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 池田 賢一
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