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Influence of high-energy milling on the structure and magnetic properties of atomized magnetic powder
Author(s): 
Pages: 1545-1547
Year: Issue:  10
Journal: JOURNAL OF FUNCTIONAL MATERIALS

Keyword:  高能球磨Fe-Si-Al合金粉末结构磁性能;
Abstract: 采用高能球磨的方法处理水雾化Fe-Si-Al软磁合金粉末,运用SEM、XRD分析球磨粉末的显微结构和晶体结构,测试粉末的静磁参数及其2~18GHz范围的复磁导率(μr=μ′-jμ″).结果表明,球磨时间增加,粉末的扁平率增大、粒度减小;平均晶粒尺寸减小、内应变增大导致结晶有序度降低;粉末的饱和磁感应强度减小、矫顽力增大;球磨粉末的复磁导率实部和自然共振频率均相应提高,但过度球磨不利于材料磁损耗性能的提高.
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