Journal
IEEE TRANSACTIONS ON MAGNETICS
Volume 37, Issue 4, Pages 2660-2662Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/20.951266
Keywords
core-shell; iron-polystyrene composite; magnetic nanoparticle; polystyrene-tetraethylenepentamine dispersant
Ask authors/readers for more resources
Composite materials consisting of polystyrene-coated iron nanoparticles were prepared by the thermal decomposition of iron pentacarbonyl in the presence of polystyrene-tetraethylene-pentamine dispersants. The nanocomposites contain both simple core-shell particles of 10-20 nm diameter, and more complex particles (20-100 nm) made from the agglomeration of several core-shell particles. Electron diffraction revealed that the core was composed of iron, in contrast to the iron nitride (Fe3N) reported for similar conditions with a polyisobutylene-based dispersant. The materials exhibit hysteresis and sigma (s) ranges from 7.6 to 29.3 emu/g The coercivity goes through a maximum for particles of approximate to 25 nm diameter. Removal of unbound dispersant from the materials greatly increases the magnetization.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available