Cobalt ferrite nanoparticles were synthesized with coprecipitation or with the hydrothermal method. Stable water suspensions were prepared from the as-synthesized nanoparticles, with the addition of citric acid as a surfactant, and then used for the preparation of deposits under an applied magnetic field. The morphology of the cobalt ferrite nanoparticles was investigated with a transmission el...

BaFelp z.Co.-,Sn,Ni,01 I hexagonal-plated-shaped barium ferrite powders mere prepared by chemical pricipitation and subsequent heat treatment to investigate the effects of Ni ion on the magnetic properties of the barium ferrite powders. Experimental results indicates that if the y value in the chemical formula is varied and the x value is maintained constant, i.e. the partial replacement of Co ...

Abstract Considering the promising utility of devices operating for high magnetic fields in noninvasive medical diagnostic applications such as resonance imaging, a microfiber-based magnetometer an extensive dynamic range actuated via NiFe 2 O 4 ferrite fluid is presented and proposed first time this paper. nanoparticles with mean diameter 37 nm (derived from Debye–Scherer’s formula) are prepar...

The effect of different austenite grain size and different cooling rates on the austenite to ferrite transformation temperature and different ferrite morphologies in one Nb-microalloyed (HSLA) steel has been investigated. Three different austenite grain sizes were selected and cooled at two different cooling rates for obtaining austenite to ferrite transformation temperature. Moreover, samples ...

In this paper, we present the main irradiation effects observed on ferrites in the world between 1970 and 195. The crystallographic and magnetic changes induced by irradiation are shown for carious kinds of particles : fast neutrons, low energy ions and high energy heavy ions and for different ferrite structures : spinels, garnets and hexaferrites.The observed effects depend both on the mechani...

manganese zinc ferrite nanoparticles (mzf nps) were synthesized by using a direct, efficient and environmental friendly hydrothermal method. to improve the colloidal stability of mzf nps for biomedical applications, nps were coated with chitosan by ionic gelation technique using sodium tripolyphosphate (tpp) as crosslinker. the synthesized nps were characterized by x ray diffraction (xrd) analy...