Preparation and Properties of Fe_3O_4 Magnetic Nano-particles
Source abstract
Abstract
The Fe3O4 magnetic nano-particles prepared by the titration hydrolyzation method were studied with X-ray diffration(XRD), UV-Vis diffusive reflectance spectrum(DRS), Magnetore-sistance measurement and digital bridge LCR. The results show that the Fe3O4 magnetic particles have strong absorptions in the rang from 250nm to 3000nm ; the average diameter of the Fe3O4 nano-particles is about 18nm. The FesO4 granular film has obvious negative magnetoresistivity effect and humidity sensitive character. The impedance of the Fe3O4 nano-particles decreases with increasing magnetic induction and humidity respectively.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Characterization and Applications of Magnetic Nanoparticles · Magnetic Properties and Synthesis of Ferrites
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