| 简介 |
Provided is an R-Fe-B sintered magnet the surface of which has a chemical coating that is superior in corrosion resistance to conventional chemical coatings such as phosphate coatings, and also provided is a method for producing the R-Fe-B sintered magnet. The R-Fe-B sintered magnet the surface of which has a chemical coating is obtained by chemically coating the surface of an R-Fe-B sintered magnet (where R is a rare earth element that contains at least Nd) with a phosphorus-free laminated structure comprising at least an inner layer containing R, fluorine, and oxygen as structural elements and an amorphous outer layer containing Zr, Fe, and oxygen as structural elements. |
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