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Expanding the application space for piezoelectric materials
APL Materials ( IF 5.3 ) Pub Date : 2021-01-04 , DOI: 10.1063/5.0035416
Andrew J. Bell 1, 2 , Tim P. Comyn 2 , Timothy J. Stevenson 2
Affiliation  

The long history of innovation in the field of piezoelectric devices has, over the last 65 years, been predominantly rooted in a single material, the Pb(Zr, Ti)O3 ceramic, known as lead zirconate titanate (PZT). Despite enormous resources being dedicated in the last 20 years to identifying lead-free alternatives to PZT and developing a thriving, but limited, market in PbTiO3-relaxor single crystals, most device developments are still PZT based. However, more recently, solid solutions based on BiFeO3 have opened up new applications for active piezoelectric devices at high temperatures (to 600 °C) and under high stress (exceeding 250 MPa), with applications in industrial ultrasound, aerospace, automotive, and micro-actuators. This perspective article examines how new materials are expanding the application space for piezoelectric materials.

中文翻译:

扩大压电材料的应用空间

在过去的65年中,压电器件领域的悠久创新历史主要植根于一种材料,即称为锆钛酸铅(PZT)的Pb(Zr,Ti)O 3陶瓷。尽管在过去20年中投入了大量资源来确定PZT的无铅替代品并开发了蓬勃发展但有限的PbTiO 3弛豫单晶市场,但大多数器件开发仍基于PZT。然而,最近,基于BiFeO 3的固体溶液在高温(至600°C)和高应力(超过250 MPa)的条件下,有源压电器件已经开辟了新的应用领域,并在工业超声,航空航天,汽车和微致动器中得到了应用。该透视文章探讨了新材料如何扩展压电材料的应用空间。
更新日期:2021-01-29
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