Abstract
The rare earth-cobalt compounds with CaCu5-type structure were discovered to have outstanding permanent magnetic properties. The thermal stability of Y1-xErxCo5(x = 0, 0.12, 0.24) was investigated by X-ray powder diffraction, differential thermal analysis and scanning electron microscopy with energy dispersive analysis. The influence of Er for Y on the decomposition of Y1-xErxCo5was discussed. The substitution of Er for Y in the compound YCo5obviously enhanced the decomposition temperature and accelerated the decomposition reaction of the compounds Y1-xErxCo5into (Y1-xErx)2Co17and (Y1-xErx)2Co7.
Publisher
Trans Tech Publications, Ltd.
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