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Advanced Chamfering Technology for Edge Strengthening
Author(s) -
Lee Hoikwan,
Kim Seungho
Publication year - 2014
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.13026
Subject(s) - materials science , enhanced data rates for gsm evolution , composite material , modulus , optical microscope , bending , hardness , birefringence , young's modulus , compressive strength , optics , scanning electron microscope , telecommunications , computer science , physics
Damage‐free chamfering method for strengthening a glass edge was introduced and its effect on the edge property was discussed in detail. The chamfered surface was evaluated using an optical microscope, a confocal LSM , and a birefringence measurement system. The mechanical properties were characterized by measuring hardness, Young's modulus, and bending strength. The results revealed that the cut edge of 0.55 t thin glass sheet containing median cracks and chips was exfoliated uniformly to a thickness of 200 μm, and a smooth edge surface was created (Ra = 0.03 μm). We also reported that the chamfered surface had a compressive stress enabling hardness and Young's modulus increase, and the edge strength improved from 117 to 199 MPa.