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Ki Ha Hwang(황기하),Hua Feng Wu(오화봉),Won Suk Choi(최원석),Sung Hak Cho(조성학),Myungchang Kang(강명창) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.7
Mn+1AXn (MAX) phases are a family of nano-laminated compounds that possess unique combination of typical ceramic properties and typical metallic properties. As a member of MAX-phase, Ti₂AlN bulk materials are attractive for some high temperature applications. In this study, Ti₂AlN bulk with high density were synthesized by spark plasma sintering method. X-ray diffraction, micro-hardness, electrical and thermal conductivity were measured to compare the effect of material properties both Ti₂AlN bulk samples and a conventional Ti-6Al-4V alloy. A femto-second laser conditions were conducted at a repetition rate of 6 ㎑ and laser intensity of 50 %, 70% and 90 %, respectively, laser confocal microscope were used to evaluate the width and depth of ablation. Consequently, the laser ablation result of the Ti₂AlN sample than that of the Ti-6Al-4V alloys show a considerably good ablation characteristics due to its higher thermal conductivity regardless of to high densification and high hardness.