The present study demonstrates the effect of magnetic pulse compaction and spark plasma sintering on the microstructure and mechanical property of a sintered W body. The relative density of green specimens prepared by magnetic pulse compaction increases with increase in applied pressure, but when the applied pressure is 3.4 GPa or more, some cracks in the specimen are observed. The pressureless-sintered W shows neck growth between W particles, but there are still many pores. The sintered body fabricated by spark plasma sintering exhibits a relative density of above 90 %, and the specimen sintered at 1,600 oC after magnetic pulse compaction shows the highest density, with a relative density of 93.6 %. Compared to the specimen for which the W powder is directly sintered, the specimen sintered after magnetic pulse compaction shows a smaller crystal grain size, which is explained by the reduced W particle size and microstructure homogenization during the magnetic pulse compaction process. Sintering at 1,600 oC led to the largest Vickers hardness value, but the value is slightly lower than that of the conventional W sintered body, which is attributed mainly to the increased grain size and low sintering density.

Abstract
1.서 론
2. 실험 방법
3. 결과 및 고찰
4.결 론
References

• 이의선(서울과학기술대학교 신소재공학과) | Eui Seon Lee (Department of Materials Science and Engineering, Seoul National University of Science and Technology)
• 변종민(서울과학기술대학교 신소재공학과, 서울과학기술대학교 분말기술연구소) | Jongmin Byun (Department of Materials Science and Engineering, Seoul National University of Science and Technology/The Institute of Powder Technology, Seoul National University of Science and Technology)
• 정영근(부산대학교 융합학부) | Young-Keun Jeong (Graduate School of Convergence Science, Pusan National University)
• 오승탁(서울과학기술대학교 신소재공학과, 서울과학기술대학교 분말기술연구소) | Sung-Tag Oh (Department of Materials Science and Engineering, Seoul National University of Science and Technology/The Institute of Powder Technology, Seoul National University of Science and Technology) Corresponding author