Title :
Preparation and magnetic properties of electrospun FeCo nanofibres
Author :
Xiaoyan Zhang ; Ying Liu ; Jun Li ; Xiaojiao Yang
Author_Institution :
Sch. of Mater. Sci. & Eng., Sichuan Univ., Chengdu, China
Abstract :
FeCo alloy nanofibres with an average diameter of around 150 nm were fabricated via the electrospinning technique using cobalt nitrate hexahydrate and ferric nitrate nonahydrate as precursors, polyvinyl pyrrolidone (PVP) as the fibre template. After being calcined at 600°C, the electrospun composite fibres became continuous crystallites as a result of the complete decomposition of PVP. The magnetic properties of the samples were characterised by vibrating sample magnetometer. Room temperature magnetisation results showed a ferromagnetic behaviour of the calcined FeCo nanofibres, which exhibit greatly enhanced coercivities compared with the bulk FeCo alloy materials.
Keywords :
calcination; cobalt alloys; coercive force; crystallites; decomposition; electrospinning; ferromagnetic materials; iron alloys; nanocomposites; nanofabrication; nanofibres; nanomagnetics; FeCo; calcination; cobalt nitrate hexahydrate; crystallites; decomposition; electrospinning; electrospun composite fibres; electrospun nanofibres; enhanced coercivities; ferric nitrate nonahydrate; ferromagnetic property; magnetic properties; polyvinyl pyrrolidone; room temperature magnetisation; temperature 293 K to 298 K; temperature 600 degC; vibrating sample magnetometer;
Journal_Title :
Micro & Nano Letters, IET
DOI :
10.1049/mnl.2012.0382
