Powder quality, including high flowability and spherical shape, determines the properties of additively manufactured products. Therefore, the cheap production of high-quality powders is critical in additive manufacturing. Radio frequency plasma treatment is an effective method to fabricate spherical powders by melting the surface of irregularly shaped powders; in the present work, mechanically milled Zr powders are spheroidized by radio frequency plasma treatment and their properties are compared with those of commercial Zircaloy-2 alloy powder. Spherical Zr particles are successfully fabricated by plasma treatment, although their flowability and impurity contents are poorer than those of the commercial Zircaloy-2 alloy powder. This result shows that radio-frequency plasma treatment with mechanically milled powders requires further research and development for manufacturing low-cost powders for additive manufacturing.

Abstract
1.서 론
2. 실험방법
3. 실험결과 및 고찰
4. 결 론
References

• 이유경(경상대학교 나노신소재융합공학과) | Yukyeong Lee (Department of Materials Engineering and Convergence Technology, Gyeongsang National University)
• 최미선(포항산업과학연구원 산업소재연구그룹) | Mi-Sun Choi (Industrial Materials Research Group, Research Institute of Industrial Science and Technology)
• 박언병(포항산업과학연구원 산업소재연구그룹) | Eon Byeong Park (Industrial Materials Research Group, Research Institute of Industrial Science and Technology)
• 오정석(경상대학교 나노신소재융합공학과) | Jeong Seok Oh (Department of Materials Engineering and Convergence Technology, Gyeongsang National University)
• 남태현(경상대학교 나노신소재융합공학과) | Taehyun Nam (Department of Materials Engineering and Convergence Technology, Gyeongsang National University)
• 김정기(경상대학교 나노신소재융합공학과/포항산업과학연구원 산업소재연구그룹) | Jung Gi Kim (Department of Materials Engineering and Convergence Technology, Gyeongsang National University/Industrial Materials Research Group, Research Institute of Industrial Science and Technology) Corresponding Author