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KMID : 1011420150200010009
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Journal of Korean Ophthalmic Optics Society
2015 Volume.20 No. 1 p.9 ~ p.14
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Effects of Sweat on the Metal Frames of Eyeglasses
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김소라:Kim So-Ra
최명진:Choi Myung-Jin/황재원:Hwang Jae-Weon/김명수:Kim Myung-Soo/정서영:Chung Seo-Young/박미정:Park Mi-Jung
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Abstract
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Purpose: In this paper, the changes in eyeglasses frames were investigated when the frames were exposed to artificial sweat.
Methods: The changes in surface, hardness, and tensile strength of eyeglasses frames made of nickel silver, Monel, and titanium were tested after the exposure to the artificial sweat of pH 6.5, 6.0, and 5.0, during 1, 3, and 6 week(s), for each.
Results: Corrosion pattern of eyeglasses frames made of nickel silver, Monel, and titanium was induced by artificial sweat, and the patterns were different from another frame materials. In proportion to the pH of artificial sweat and exposure time to artificial sweat, hardness of all frames made of three different material decreased, however, tensile strength of the three frames was not changed.
Conclusions: The necessity of routine management for eyeglasses frames can be suggested since the changes in surface corrosion and hardness of eyeglasses frames induced by sweat were shown.
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KEYWORD
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Eyeglasses Frame, Nickel Silver, Monel, Titanium, Sweat, pH, Surface Observations, Hardness, Tensile
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