Ni wires with a diameter and length of 0.4 and 100 mm, respectively, and a purity of 99.9% are electrically exploded at 25 cycles per minute. The Ni nanopowders are successfully synthesized by a pulsed wire evaporation (PWE) method, in which Ar gas is used as the ambient gas. The characterization of the nanopowders is carried out using X-ray diffraction (XRD) and a high-resolution transmission electronmicroscope (HRTEM). The Ni nanopowders are classified for a multilayer ceramic condenser (MLCC) application using a type two Air-Centrifugal classifier (model: CNI, MP-250). The characterization of the classified Ni nanopowders are carried out using a scanning electron microscope (SEM) and particle size analysis (PSA) to observe the distribution and minimum classification point (minimum cutting point) of the nanopowders.

• 박중학(a(주)나노기술, b공주대학교 신소재공학부) | Joong-Hark Park (a Nano Technology Inc.,b Division of Advanced Materials Engineering, Kongju National University)
• 이동진(a(주)나노기술, b공주대학교 신소재공학부) | Dong-Jin Lee (a Nano Technology Inc.,b Division of Advanced Materials Engineering, Kongju National University)
• 김건홍(고등기술연구원 신소재공정센터) | Geon-Hong Kim (Advanced Materials & Processing Center, Institute for Advanced Engineering)
• 홍순직(공주대학교 신소재공학부) | Soon-Jik Hong (Division of Advanced Materials Engineering, Kongju National University) Corresponding author