Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Evaluation of Mechanical Properties of Glass Substrate Strengthened by Ulatrashort Laser Pulse(1)

극초단파 레이저 강화 유리 기판의 기계적 특성평가(1)

  • Moon Pil Yong (School of Materials Science and Engineering, Pusan National University) ;
  • Yoon Duk ki (School of Materials Science and Engineering, Pusan National University) ;
  • Lee Kang Taek (School of Materials Science and Engineering, Pusan National University) ;
  • Yoo Byung Heon (Nano-Mechanical Systems Research Center, Korea Institute of Machinery and Materials) ;
  • Cho Sung Hak (Nano-Mechanical Systems Research Center, Korea Institute of Machinery and Materials) ;
  • Ryu Bong Ki (School of Materials Science and Engineering, Pusan National University)
  • 문필용 (부산대학교 재료공학부) ;
  • 윤덕기 (부산대학교 재료공학부) ;
  • 이강택 (부산대학교 재료공학부) ;
  • 윤병헌 (한국기계연구원 나노공정장비연구센터) ;
  • 조성학 (한국기계연구원 나노공정장비연구센터) ;
  • 류봉기 (부산대학교 재료공학부)
  • Published : 2005.12.01
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Abstract

In order to reduce the weight of glass in architecture, automobile, bottles, displays, a new technique that can strengthen glass was developed using various method. Generally, the strength achieved of glass-ceramics is higher as is 1.he fracture toughness by the formation of a crystalline phase inside glass. In this study, $70SiO_2-20Na_2O-10CaO-10TiO_2$ glasses were irradiated to strengthen by heterogeneous phase using femto-second laser pulse. Laser pulse irradiation of samples was analyzed by DTA, TMA, XRD, nano-indenter and SEM. Samples irradiated by laser had lower value$(3\~4\times10^{-3}Pa)$ of nano indentation which related with mother glass$(8\times10-3Pa)$ than values. Microcracks were occurred around laser irradiation area when femtosecond laser with the repetition rate of 1kHz was used as the light source to induced heterogeneous phase.

Keywords

References

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