| 학회 | 한국공업화학회 |
| 학술대회 | 2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 | 25권 2호 |
| 발표분야 | 포스터-나노 |
| 제목 | A Facile Synthesis of Peapod-like α”-Fe16N2 Magnetic Particles in Silica Shell |
| 초록 | Iron nitride phase α“-Fe16N2 has been suggested as a possible rare-earth free PMs candidate due to the abundance of Fe and N, its large magnetocrystalline anisotropy, and large saturation magnetization. Thus, researchers have developed various synthesis methods such as wet chemical, ball milling and plasma process etc. However, the resulting nanoparticles by these traditional methods exhibit low coercivity which might be attributed to intensive surface oxidation. Here, we developed a facile method to synthesize of α”-Fe16N2 nanoparticles embedded in SiO2 shell with peapod-like structures via sol-gel process combined with hydrogen (H2) reduction and ammonia (NH3) nitridation. Thus, the strategy to fabricate air-stable α”-Fe16N2 nanoparticles will provide opportunities to realize practical Fe based permanent magnets. This study was supported by the Fundamental Research Program of the Korea Institute of Material Science (PNK7630) |
| 저자 | 송승훈, 조기련, 백연경 |
| 소속 | 한국재료(연) |
| 키워드 | a''-Fe16N2; rare-earth free; permanent magnet |
