Rare earth-transition metal alloy articles

Details Rare earth-transition metal alloy articles Rare earth-transition metal alloy articles

2003-11-26

2008-08-12

La Villa, Michael (Department: 1794)

Stock material or miscellaneous articles

Composite

Of metal

C428S632000, C428S633000, C428S472300, C428S681000, C428S704000, C427S127000, C427S331000, C148S301000

Reexamination Certificate

active

07410705

ABSTRACT:
A phosphate bonded ceramic is used to provide a protective coating on a rare earth-transition metal (RE-TM) alloy substrate, conferring degradation resistance to the alloy by being oxidation resistant and acting as a diffusion barrier, thereby minimising/preventing oxygen diffusion and elemental depletion. The alloy substrate may, for example, be a permanent magnetic alloy component and may be used in aerospace applications.

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patent: A-2001-295091 (2001-10-01), None
Christina H. Chen et al.; “Surface Reaction and Sm Depletion at 550° C. for High Temperature Sm-Tm Magnets”;IEEE Transactions on Magnetics; vol. 37, No. 4; Jul. 2001; pp. 2531-2533.

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