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논문 기본 정보

자료유형
학술저널
저자정보
Hye-Min Kwon (Chosun University) Sung-Jun Lee (Chosun University) Chang-Lae Kim (Chosun University)
저널정보
한국트라이볼로지학회 Tribology and Lubricants Tribology and Lubricants 제40권 제3호
발행연도
2024.06
수록면
84 - 90 (7page)

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초록· 키워드

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This study investigates the effect of the surface microstructure on the tribological characteristics of glass substrates. Chemical etching using hydrofluoric acid and ammonium hydrogen fluoride was employed to create controlled asperity structures on glass surfaces. By varying the etching time from 10 to 50 min, different surface morphologies were obtained and characterized using optical microscopy, surface roughness measurements, and water contact angle analysis. Friction tests were performed using a stainless steel ball as the counter surface to evaluate the tribological behavior of the etched specimens. The results showed that the specimen etched for 20 min exhibited the lowest and most stable friction coefficient, which was attributed to the formation of a uniform and dense asperity structure that effectively reduced the stress concentration and wear at the contact interface. In contrast, specimens etched for shorter (10 min) or longer (30-50 min) durations displayed higher friction coefficients and accelerated wear owing to nonuniform asperity structures that led to local stress concentration. Optical microscopy of the wear tracks further confirmed the superior wear resistance of the 20-minute etched specimen. These findings highlight the importance of optimizing the etching process parameters to achieve the desired surface morphology for enhanced tribological performance, suggesting the potential of chemical etching as a surface modification technique for various materials in tribological applications.

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Abstract
1. Introduction
2. Materials and Experiments
3. Results and Discussion
4. Conclusion
References

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