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This paper looks at the in vitro heating of low viscosity ferrofluids containing nanoparticles with elevated magnetization established by a 200 kHz AC magnetic field. It is found that controlling the concentration of the nanoparticles in solution the cPEG coated Fe nanoparticles improve the effectiveness of heating in vitro within the required limits.
The authors studied the influence of microstructure and grain size, as well as Curie temperature, on the low-temperature aged Sm(Co0.45Cu0.4Fe0.15)5 alloy in relation to enhanced coercivity. Melt-spinning has been employed in order to achieved a wide range of grain sizes from micro- to nanometer level. XRD and TEM analysis were used to study the structure of as-spun ribbons and SQUID magnetometer...
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