Ti₂AlN composites are a laminated compounds that posses unique combination of typical ceramic proper- ties and typical metallic(Ti alloy) properties. In this paper, the powder synthesis, SPS sintering, composite characteristics and machinability evaluation were systematically conducted. The random orientation characteristics and good crystalli- zation of the Ti2AlN phase are observed. The electrical and thermal conductivity of Ti2AlN is higher than that of Ti6242 alloy. A machining test was carried out to compare the effect of material properties on micro electrical discharge drilling for Ti2AlN composite and Ti6242 alloy. Also, mixture table as a kind of tables of orthogonal arrays was used to know how parameter is main effective at experimental design. Consequently, hybrid Ti2AlN ceramic composites showed good machining time and electrode wear shape under micro ED-drilling process. This conclusion proves the feasibility in the industrial applications.

• 허재영(National Core Research Center for Hybrid Materials Solution, Pusan National University) | Jae-Young Heo
• 정영근(National Core Research Center for Hybrid Materials Solution, Pusan National University) | Young-Keun Jeong
• 강명창(National Core Research Center for Hybrid Materials Solution, Pusan National University) | Myung-Chang Kang Corresponding Author
• Ahmed BUSNAINA(Department of Mechanical and Industrial Engineering, Northeastern University)