摘要
采用溶胶凝胶法在Fe-6.5Si颗粒表面包覆了一层MgO绝缘壳层,并通过放电等离子技术(SPS)制备了Fe-6.5Si/MgO微胞软磁复合材料。经SPS烧结后制得的复合材料具有优异的软磁性能及力学性能,Fe-6.5Si/MgO复合材料的电阻率较Fe-6.5Si原始粉末提高了30倍,饱和磁感应强度Bs=1.498T;MgO颗粒形成了3D空间结构,使Fe-6.5Si/MgO软磁复合材料具有较高的弹性模量和抗压强度,抗压强度最高达1 075 MPa。
T he M gO insulation layers are coated on the surface of Fe‐6 .5Si particles by sol‐gel method , and Fe‐6 .5Si/MgO micro‐cellular soft magnetic composites are prepared with Spark Plasma Sintering （SPS） .The prepared composites demonstrate excellent soft magnetic and mechanical properties ：the electric resistivity of the composites is 30 times higher than that of original Fe‐6 .5Si powder ;the saturable magnetic intensity Bs = 1 .498 T . 3D structureis formed by MgO , which make the Fe‐6 .5Si/MgO have strong elastic modulus and compressive strength . The maximum compressive strength is up to 1 075 M Pa.
出处
《长春工业大学学报》
CAS
2015年第2期130-133,共4页
Journal of Changchun University of Technology
基金
国家自然科学基金资助项目(51071034)
