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用DSC仪测定了Nd-Fe-B磁体的Curie点,以磁称法绘制了热退磁曲线.并用高温金相显微镜直接观察了Nd-Fe-B畴结构随温度的变化.对Nd-Fe-B磁体畴结构的特点作了初步讨论.同时观察了富Nd相的熔融和试样表面的氧化过程。
The Curie point of Nd-Fe-B magnet was measured by DSC, and the thermal demagnetization curve was drawn by the magnetic method. The change of the domain structure of Nd-Fe-B with temperature was observed by high temperature optical microscope. B magnetic domain structure of the characteristics of a preliminary discussion.At the same time observed the Nd-rich phase of the melting and oxidation of the sample surface.