The basic conditions on preparation of the composite rare earth granets were expounded briefly, and the preparation of the Y and Gd doped composite garnet ferrite was studied.

• 扼要阐明了研制复合稀土石榴石型铁氧体材料的基本依据,着重对高温度稳定性和低损耗的稀土钇钆复合石榴石铁氧体的制备进行实验研探。