한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제12권6호
  • /
  • Pages.23-29
  • /
  • 2013
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  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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순수 알루미나와 탄소나노튜브 강화 알루미나 복합체의 극초단 펄스레이저 가공특성 비교

Comparison of Ablation Characteristics of Carbon Nanotube reinforced Hybrid Al2O3 by using Ultrashort Pulse Laser

  • 이준영 (부산대학교 융합학부) ;
  • 윤지욱 (한국기계연구원 나노공정연구실) ;
  • 강명창 (부산대학교 융합학부) ;
  • 조성학 (한국기계연구원 나노공정연구실)
  • 투고 : 2013.12.11
  • 심사 : 2013.12.23
  • 발행 : 2013.12.31
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초록

In this paper, pure $I_{ph}$ and hybrid carbon nanotube reinforced $I_{ph}$ were sintered using the SPS(spark plasma sintering) method for high densification. A nanosecond laser (${\lambda}=1063nm$, ${\tau}P=10ns$) and a femtosecond laser (${\lambda}=1027nm$, ${\tau}P=380fs$) were installed on an optical system for the micromachining test. The ablation characteristics of the pure $I_{ph}$ and CNT/$I_{ph}$ composites, such as thermal effect and ablation depth, were investigated using FE-SEM and a confocal microscope device. Laser machining results for the two mating materials showed improved performances: CNT/$I_{ph}$ composites showed good surface morphology of hole drilling without a melting zone due to the composites' high thermal properties; also, the ablated depth of CNT/$I_{ph}$ was higher than that of pure $I_{ph}$.

키워드

참고문헌

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