Plasma sprayed Fe76Nd16B8 permanent magnets

Overfelt, R. A.; Anderson, C. D.; Flanagan, W. F.
December 1986
Applied Physics Letters;12/29/1986, Vol. 49 Issue 26, p1799
Academic Journal
Thin coatings (0.16 mm) and thick coatings (0.50 mm) of Fe76Nd16B8 were deposited on stainless-steel substrates by low pressure plasma spraying. Microscopic examination of the coatings in a light microscope revealed excessive porosity, but good bonding to the substrate. Fracture cross sections examined in a scanning electron microscope showed the grains to be equiaxed and approximately 1 μm or less in diameter in the as-sprayed condition. The intrinsic coercivities of the as-sprayed coatings varied from 5.8 to 10.9 kOe. The effects of post-spray heat treatments on the intrinsic coercivity are also given.


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