he fracture behaviour of the sintered NdFeB permanent magnetic materials and the composition of phases on grain plane and grain boundary interface have been studied. It is shown that the fracture behaviour of the NdFeB magnets appear mainly intergranular facture and the grain boundary appears O-rich and Nd-rich. It is suggested that the intergranular Nd-rich film with oxygen located on the grain boundary is the main cause of the intergranular fracture of the magnets. The ways to strengthen the NdFeB Permanent magnetic materials have also been proposed.
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曾振鵬.燒結(jié)NdFeB永磁材料的斷裂研究[J].稀有金屬材料與工程,1996,(3):18~21.[Zeng Zhenpeng. A Study of the Fracture in Slut6red NdFeB Permanent Magnetic Materials[J]. Rare Metal Materials and Engineering,1996,(3):18~21.] DOI：[doi]