平凯斌,闫志杰,胡玉平

• 1:太原科技大学材料科学与工程学院

摘要(Abstract)：

采用单辊甩带法制取了Fe-Si-B-Nb-Cu-Zr非晶合金薄带。利用X射线衍射仪(XRD)、差示扫描量热法(DSC)和振动样品磁强计(VSM)等手段对非晶态和晶化后的薄带的微观结构和磁性能进行了表征和测试,研究了Fe-Si-B-Nb-Cu-Zr合金中磁性能随着Zr含量以及退火温度变化的磁性机理。结果表明,在铸态Fe-Si-B-Nb-Cu-Zr非晶合金中,饱和磁感应强度Bs随Zr含量的增加而减小,矫顽力Hc随Zr含量的增加而增大。经过退火处理后的Fe-Si-B-Nb-Cu-Zr合金的饱和磁感应强度变化不大,但矫顽力随着退火温度的升高先减小后增高,矫顽力在510℃退火时达到最小值,但随着温度增加矫顽力进一步增大。在510℃退火时纳米晶粒与非晶相之间的体积比达到最佳,有效各向异性最小,软磁性能最好。

关键词(KeyWords)： 铁基非晶纳米晶合金;软磁性能;磁性机理

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50804032);; 山西省自然科学基金(2008011046);; 山西省科技攻关计划(20080321036);; 山西省人才引进与开发专项资金(2010);; 太原市科技明星专项基金

作者(Author): 平凯斌,闫志杰,胡玉平

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