Conversion of nano-sized spherical magnetite to spherical barium ferrite nanoparticles for high density particulate recording media
IEEE transactions on magnetics, 2009•ieeexplore.ieee.org
We report 24-30 nm spherical barium ferrite (S-BaFe) particles having extremely narrow size
distribution without any superparamagnetic phase. We have converted spherical magnetite
(S-Mag) nanoparticles to S-BaFe nanoparticles using a unique adsorption-diffusion process.
The synthesized S-BaFe nanoparticles were characterized by X-ray diffractometer,
Mossbauer spectrometer, transmission electron microscope (TEM), and vibrating
magnetometer (VSM) for magnetic and physical properties. Saturation magnetization and …
distribution without any superparamagnetic phase. We have converted spherical magnetite
(S-Mag) nanoparticles to S-BaFe nanoparticles using a unique adsorption-diffusion process.
The synthesized S-BaFe nanoparticles were characterized by X-ray diffractometer,
Mossbauer spectrometer, transmission electron microscope (TEM), and vibrating
magnetometer (VSM) for magnetic and physical properties. Saturation magnetization and …
We report 24-30 nm spherical barium ferrite (S-BaFe) particles having extremely narrow size distribution without any superparamagnetic phase. We have converted spherical magnetite (S-Mag) nanoparticles to S-BaFe nanoparticles using a unique adsorption-diffusion process. The synthesized S-BaFe nanoparticles were characterized by X-ray diffractometer, Mossbauer spectrometer, transmission electron microscope (TEM), and vibrating magnetometer (VSM) for magnetic and physical properties. Saturation magnetization and coercivity of the S-BaFe nanoparticles were found to be 41.4 emu/g and 4075 Oe, respectively. The thermal stability of K u V/k B T ap 107 was estimated for the S-BaFe nanoparticles from time-dependent remanent coercivity measurement.
ieeexplore.ieee.org
以上显示的是最相近的搜索结果。 查看全部搜索结果