Core-shell composite particles consisting of a core of Polystyrene (PS) and a shell of Ba-ferrite precursor(BFP) were prepared by way of heterogeneous nucleation, and the yielded composite particles were heat-treated.

• 本文首先以聚苯乙烯微球(PS)为成核基体,利用异相成核技术,制备了核壳复合粒子PS/钡铁氧体前驱物(BFP),然后用热处理方法对其进行空心化处理和晶形转变处理。