高能球磨与真空退火对纳米晶FeSiAl微波特性的影响  

Effects of Flattening and Annealing on the Microwave Properties of Nano-crystal FeSiAl Alloys

作　　者：张艳丹[1] 周克省[1] 唐璐[1] 胡照文[1] 黄生祥[1] 邓联文[1] 

机构地区：[1]中南大学物理与电子学院超微结构与超快过程湖南省重点实验室,湖南长沙410083

出　　处：《矿冶工程》2016年第1期111-113,共3页Mining and Metallurgical Engineering

基　　金：中南大学超微结构与超快过程湖南省重点实验室资助项目

摘　　要：采用熔体快淬法制备了Fe Si Al快淬带料,并利用行星式高能球磨机对Fe Si Al快淬带料进行了扁平化处理。重点研究了高能球磨处理和真空退火工艺对Fe Si Al粉体材料微波电磁参数的影响。结果表明,Fe Si Al快淬带料通过高能球磨处理能获得薄片状Fe Si Al纳米晶材料,后续真空退火处理工艺可以保持纳米晶结构和片状外形,可使微波复磁导率实部和虚部进一步提高,2 GHz处复磁导率实部μ'和虚部μ″分别达6.1和4.3。FeSiAl ribbon was firstly prepared by melt-spinning quenching method, and then further flattened by high-energy planetary ball mill. The research focused on the effects of high-energy ball milling and vacuum annealing on microwave parameters of FeSiAl materials. The results show that flaky FeSiA1 particles with nano-crystalline structure can be prepared by high-energy ball milling. The subsequent vacuum annealing morphology and nano-crystalline structure, but also further improve the real part permeability, resulting in the real part μ′ and virtual part μ″ at 2 GHz up to 6.1 and can not only maintain the flaky and virtual part of the complex 4.3, respectively.

关 键 词：吸波材料 熔体快淬 Fe Si Al 高能球磨 真空退火 微波性能 

分 类 号：TM25[一般工业技术—材料科学与工程]