Thick-film magnetoresistive sensors based on Ni and Co fine powders ha
ve shown promising results. In order to improve their performance Ni,
Co and Ni-Co powders were prepared by the polyol process. The metallic
powders were characterised by simultaneous thermogravimetric and diff
erential thermal analysis (TGA-DTA), X-ray diffraction analysis (XRD)
and scanning electron microscopy (SEM).