Influence of perpendicular compressive stress on the phase transition behavior in (Pb,La,Ba,)(Zr,Sn,Ti)O3 antiferroelectric ceramics
Influence of perpendicular compressive stress on the phase transition behavior in (Pb,La,Ba,)(Zr,Sn,Ti)O3 antiferroelectric ceramics
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DOI：
10.1016/j.ceramint.2015.08.170
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发表时间：
2016
影响因子：
5.2
通讯作者：
Yong-hao Xu;Yangxi Yan;Yangxi Yan;S. E. Young;Yujun Feng
中科院分区：
文献类型：
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作者：
Yong-hao Xu;Yangxi Yan;Yangxi Yan;S. E. Young;Yujun Feng
采用固相反应法制备了（Pb0.94−xLa0.04Bax）[（Zr0.60Sn0.40）0.84Ti0.16]O3（x=0.00−0.04）反铁电陶瓷，系统研究了其在垂直压应力下的相变行为。据发现，Ba的掺入显着抑制应力敏感性的相变，表现为在应力下的最大极化（Pm）高达90 MPa的轻微下降。计算了微分介电常数ε，发现ε随应力的增大而减小。由ε d图确定的临界场EF和过渡场滞后△ E表明，与先前研究中平行应力下测量的结果不同，任何测试的组分都不具有应力依赖性。此外，由于在垂直压应力下耗散能的降低，能量密度相对于基础组合物x =0.00中的垂直压应力是非常稳定的，并且甚至随着Ba改性而增加。
(Pb0.94−xLa0.04Bax)[(Zr0.60Sn0.40)0.84Ti0.16]O3(x=0.00−0.04) antiferroelectric ceramics were fabricated via the solid state reaction method, and their phase transition behaviors were systematically studied under perpendicular compressive stress. It is found that incorporation of Ba significantly suppresses the stress-sensitivity of the phase transition, as manifested by slight decreases under stress up to 90 MPa in the maximum polarization (Pm). The differential dielectric constantεdis calculated, and it is apparent thatεdis suppressed with increasing stress magnitude. The critical fieldEFand transition field hysteresis △Edetermined fromεdplots show no stress dependence for any of the tested compositions, unlike those measured under parallel stress in a previous study. In addition, due to the reduction in dissipation energy under perpendicular compressive stress, energy density is very stable with respect to perpendicular compressive stress in the base compositionx=0.00, and even increases with Ba modification.