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Abstract:
采用表面活性剂增强高能球磨技术及颗粒清洗、分级筛选工艺,制备了具有较高矫顽力、颗粒尺寸分布狭窄的SmCo5纳米颗粒与纳米薄片,利用XRD,SEM,TEM,激光粒径分析(LPSA)和振动样品磁强计(VSM)等手段分别对其相结构、微观形貌、颗粒尺寸分布及磁性能进行了表征. 结果表明,平均颗粒尺寸分别为9.8和47.5 nm的SmCo5纳米颗粒,其室温矫顽力分别为6.8× 104和7.3×105 A/m;SmCo5纳米薄片的平均颗粒尺寸为1.4 μm,平均厚度为75 nm,具有明显的c轴织构和较强的磁各向异性,其难磁化轴和易磁化轴上的室温矫顽力分别可达5.5×106和1.6×106 A/m; SmCo5纳米颗粒和纳米薄片的矫顽力表现出显著的颗粒尺寸依赖性.
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金属学报
ISSN: 0412-1961
Year: 2012
Issue: 4
Volume: 48
Page: 475-479
2 . 3 0 0
JCR@2022
ESI Discipline: MATERIALS SCIENCE;
JCR Journal Grade:2
CAS Journal Grade:4
Cited Count:
SCOPUS Cited Count: 5
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 5
Chinese Cited Count:
30 Days PV: 1
Affiliated Colleges: