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Evaluation of Indentation Induced Residual Stress on the Surface of Substrate Glasses for Display

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/75364

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)

Submitter: 池田 賢一

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