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- 사출성형된 Fe-50%Ni 소결체의 제조
- 김기현, 윤형철, 최철진, 이병택
- Fabrication of Injection Molded Fe-50%Ni Sintered Bodies
- Ki-Hyun Kim, Hyeong-Chul Yoon, Chul-Jin Choi, Byong-Taek Lee
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Journal of Korean Powder Metallurgy Institute 2004;11(6):472-476
DOI: https://doi.org/10.4150/KPMI.2004.11.6.472
2공주대학교 나노소재응용공학부
3한국기계연구원 나노분말재료그룹
4공주대학교 나노소재응용공학부
1Division of Advanced Materials Engineering, Kongju National University
2Division of Advanced Materials Engineering, Kongju National University
3Korea Insitute of Machinery and Materials
4Division of Advanced Materials Engineering, Kongju National University
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Abstract
The Fe-Ni compact bodies were fabricated using Fe-Ni mixed powders with 50 nm in diameter by injection molding process. The relationship between microstructure and material properties was characterized with respect to the volume ratio of powder/binder and sintering temperature with SEM and TEM. In the compact body having the volume percent ratio of 45(Fe-Ni) : 55(binder), which was sintered at 900°C the values of relative density and hardness were low about 97.7% and 277.1 Hv, respectively. Using the composition of 50(Fe Ni) : 50(binder) and sintered at 900°C, the values of relative density and hardness were 98.5%, 294.4 Hv, respec-tively. The grain size of sintered bodies strongly depended on the sintering temperature. In both samples sintered at 600°C and 900°C, the average grain sizes were about 150 nm and 500 nm in diameter, respectively.
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