磁电复合材料的力学实验与理论研究进展

Research Progress in Mechanical Experiments and Theory of Magnetoelectric Composite Materials

磁电复合材料同时具备铁磁、铁电性,并且具有磁电耦合效应,在新型磁电器件、自旋电子器件、高性能信息存储等领域有着广泛的应用前景,已成为目前功能材料领域新的研究热点.论文对磁电复合材料在力电磁多场耦合下的力学行为研究的最新进展进行总结和回顾.着重介绍磁电复合材料的磁电耦合效应实验以及多场耦合微纳米力学实验仪器的研制和表征方法.同时,也阐述了磁电复合材料在多场耦合本构理论、失效断裂理论以及多尺度计算方面的研究进展.最后,总结已有研究存在的不足,就目前有待解决科学问题的进一步研究提出建议.

Magnetoelectric composite materials possess the properties of both ferromagnetism and ferroelectricity,and more importantly, the magnetoelectric coupling effect. This kind of functional materials have great potential applications in the fields of novel magnetic-electric devices, spintronics devices, and high performance information storage, and have become one new hot research topic in the field of functional materials. In this paper, we reviewed the experimental studies of the magnetoelectric coupling effect, as well as the development of the multi-field instrument for micro/nano-mechanical tests and the corresponding characterization methods. In addition, studies of the multi-field coupling constitutive theory, fracture mechanics and multi-scale simulation methods were also reviewed. Furthermore, some suggestions were presented for the future work by summarizing the shortcomings of the existing research.