Abstract

Multiferroic (1-x)PbTiO₃−(x)Fe₂O₃ composite materials, when x = 0.1, 0.3, 0.5, 0.7 and 0.9, were prepared by solid-state reaction technique. PbTiO₃ powder was synthesized with a calcination temperature of 900 °C in air. Phase formation, densification, morphology and magnetic properties of (1-x)PbTiO₃−(x)Fe₂O₃ composites were investigated and discussed. The XRD technique was used to analyze the phase formation behavior of all specimens which shown the Fe₂O₃ accumulate phase with increasing Fe₂O₃ content. Densities of the sintered ceramics trend to decrease, possibly caused by an anomaly morphology of the specimens that related to particle packing. Also besides, the superparamagnetic behaviors were observed using a Vibrating Sample Magnetometer (VSM), which reached the maximum value at x = 0.7. In conclusion, Fe₂O₃ addition has been found to affect the phase formation, microstructure and magnetic properties of PbTiO₃ ceramics.

摘要

多重铁（1-X）的PbTiO ₃ - （X）的Fe ₂ ö ₃的复合材料，当X  = 0.1，0.3，0.5，0.7和0.9，通过固相反应法制备。在空气中以900℃的煅烧温度合成了PbTiO ₃粉末。相形成，致密化，形态和磁特性（1-X）的PbTiO ₃ - （X）的Fe _2层ö ₃复合材料进行了研究和讨论。X射线衍射技术用于分析显示Fe ₂ O ₃的所有样品的相形成行为。随着Fe ₂ O ₃含量的增加而积累相。烧结陶瓷的密度趋于降低，这可能是由于与颗粒堆积有关的试样形态异常所致。此外，使用振动样品磁强计（VSM）观察到超顺磁行为，该行为在x  = 0.7时达到最大值。总之，已发现添加Fe ₂ O ₃会影响PbTiO ₃陶瓷的相形成，微观结构和磁性能。