Ferroelectric perovskites for electromechanical actuation
Ferroelectric perovskites for electromechanical actuation
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DOI：
10.1016/j.actamat.2003.08.001
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发表时间：
2003-11
期刊：
影响因子：
9.4
通讯作者：
K. Bhattacharya;G. Ravichandran
中科院分区：
文献类型：
--
作者：
K. Bhattacharya;G. Ravichandran
由于对致动器应用中能够承受大应变的材料的需求，最近铁电材料的活动激增。新材料已经被开发出来，并且已经进行了开发潜在领域的系统尝试。新的实验方法在原子和域尺度上探索了材料。对铁电性起源、磁畴图案性质及其整体行为的理论理解取得了重大进展。具有受控结构和成分的现代合成方法为利用这些材料固有的微观特征提供了可能性。本文提供了理论和实验最新进展的一些快照，并指出了未来的开放问题和机遇。
There has been a recent surge of activity in ferroelectric materials motivated by the desire for materials capable of large strains for actuator applications. New materials have been developed and systematic attempts to exploit underlying domains have been pursued. New experimental methods have probed the material at the atomistic and domain scales. Significant advances have been made in the theoretical understanding of the origins of ferroelectricity, nature of domain patterns and their overall behavior. Modern methods of synthesis with controlled texture and composition have opened the possibility of exploiting the inherent microscopic features of these materials. This paper provides some snapshots of the recent advances in theory and experiment, and points to open issues and opportunities for the future.