中文摘要：

采用改进的固相反应法制备（ Bi3.15 Nd0.85 ） （ Ti2 Fe0.5 Co0.5 ） O11. 5 陶瓷．多铁性能测试结果表明，陶瓷样品具有室温多铁性．样品的剩余磁化为～77memu／g，剩余极化为～1．7μC／cm2，且磁场对介电频谱的影响证实该陶瓷样品的室温磁电耦合效应．

英文摘要：

The layer-structured （ Bi3.15 Nd0.85 ） （ Ti2 Fe0.5 Co0.5 ） O11. 5 ceramic was synthesized by using the improved solid-state reaction method. The multiferroic properties of the sample at room- temperature by ferroelectric and magnetic measurements was proved. The sample presented large magnetic response with 2Mr≈77 memu/g and a weak ferroelectric （FE） with 2Pr≈1. 7μC/cm2. The e{fect of magnetic field on relative dielectric constant clearly indicated the magnetoelectric effects （ME） of the sample.