论文部分内容阅读
研究了ＮｄＤｙＦｅＢ毛坯在加热及随后的烧结过程中致密度的发展规律，分析了这个过程所发生的三个重要的动力学阶段：质点重排、固溶一沉淀和固相框架的形成及其影响因素以及富钕相、晶粒尺度的变化对致密化的影响、讨论了微观结构中毛坯由聚集的粉粒向磁性相组织的转变过程。由此得到，致密度的发展同微观结构的变化密切相关。
The development of density of NdDyFeB blank during heating and subsequent sintering was studied. Three important kinetic stages of the NdDyFeB blank were analyzed: particle rearrangement, solution-precipitation and the formation of solid-phase frame and its influence Factors and the influence of the Nd-rich phase and grain size on the densification. The transformation of the microstructure from aggregated particles to the magnetic phase was discussed. As a result, the development of density is closely related to the change of microstructure.