Title :
Enhanced magnetic properties and thermal stability of SmCo5/Nd2Fe14B composite magnets by spark plasma sintering
Author :
Lu, Q. ; Zhou, C. ; Yue, M.
Author_Institution :
Coll. of Mater. Sci. & Eng., Univ. of Technol., Beijing, China
Abstract :
Magnetic materials are widely applied in many fields, and traditional single phase magnets have almost reached its limits of the maximum energy product, (BH) max. In addition, the demand for higher temperature stability is always accompanied by losses of room-temperature properties. It is reported that by combining two different materials with good room-temperature performance and high thermal stability, such as rare earth-Co based or of NdFeB is an effective way to solve the problem. In this paper, spark plasma sintering (SPS) method was applied in order to fabricate Nd2Fe14B/SmCo5 nanocomposite magnets from self-made amorphous SmCo5 powders and commercially available Nd2Fe14B powders, effects of weight ratio of Nd2Fe14B and SmCo5 on magnetic properties and temperature stability were investigated in details.
Keywords :
amorphous magnetic materials; boron alloys; cobalt alloys; coercive force; iron alloys; magnetic particles; nanocomposites; nanofabrication; nanomagnetics; neodymium alloys; plasma materials processing; samarium alloys; sintering; thermal stability; SmCo5-Nd2Fe14B; magnetic properties; nanocomposite magnets; powders; self-made amorphous powders; spark plasma sintering; temperature stability; thermal stability; weight ratio; Amorphous magnetic materials; Magnetic hysteresis; Magnetic separation; Magnetometers; Saturation magnetization; Temperature; Thermal stability;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157452
