Electroless Co-Fe-P alloys were deposited from an alkaline bath, containing boric acid as a buffer agent and sodium citrate as a complexing agent. As a result, with the increase of pH of the bath, the iron content of the deposit increased, whereas the cobalt and phosphorus contents decreased. The structure of the deposit was investigated using X-ray diffraction (XRD) and transmission electron microscope (TEM). The deposit consisted of hexahedron phase Co, cubic phase Fe-Co, and amorphous phase (crystalline). The magnetic performances of the deposit were studied using vibrating sample magnetometer (VSM). The more the content of Fe and the less the content of P (the content of Co being less), the better the magnetic performances of the deposit. The Co-Fe-P deposit was suitable for use as soft magnetic material.
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