典型文献
Coupling effects of the A-site ions on high-performance potassium sodium niobate ceramics
文献摘要：
Although vast efforts have been given to the phase boundary engineering(PBE)of potassium sodium niobate(KNN)ceramics by using chemical dopants,the inherent issues like the K/Na ratio were not paid enough attention,hindering the further understanding of physical mechanisms.Herein,we investigated the effect of the K/Na ratio on PBE-featured KNN-based ceramics.The K/Na ratio significantly influences the local A-site environment and thereby alters mesoscopic ferroelectric domains and macroscopic struc-ture and performance.A much higher Na+content results in the local stress heterogeneity,while a much higher K+content brings in the local polar heterogeneity.Due to the appropriate coupling between the local stress and the polar heterogeneity,piezoelectric properties and the temperature stability of electro-strain are optimized on the Na-rich side.Therefore,beyond seeking appropriate chemical dopants,elab-orately tailoring the K/Na ratio is also important for further improving the piezoelectric properties of PBE-featured KNN-based ceramics.
文献关键词：
中图分类号：
作者姓名：
Xiang Lv;Nan Zhang;Yinchang Ma;Xi-xiang Zhang;Jiagang Wu
作者机构：
Department of Materials Science,Sichuan University,Chengdu 610065,China;Division of Physical Science and Engineering,King Abdullah University of Science and Technology,Thuwal 23955-6900,Saudi Arabia
文献出处：
引用格式：
[1]Xiang Lv;Nan Zhang;Yinchang Ma;Xi-xiang Zhang;Jiagang Wu-.Coupling effects of the A-site ions on high-performance potassium sodium niobate ceramics)[J].材料科学技术（英文版）,2022(35):198-207
A类：
Na+content,K+content,elab,orately
B类：
Coupling,effects,site,ions,performance,potassium,sodium,niobate,ceramics,Although,vast,efforts,have,been,given,phase,boundary,engineering,PBE,KNN,using,chemical,dopants,inherent,issues,like,ratio,were,not,paid,enough,attention,hindering,further,understanding,physical,mechanisms,Herein,investigated,featured,significantly,influences,local,environment,thereby,alters,mesoscopic,ferroelectric,domains,macroscopic,struc,much,higher,results,stress,heterogeneity,while,brings,polar,Due,appropriate,coupling,between,piezoelectric,properties,temperature,stability,electro,strain,are,optimized,rich,side,Therefore,beyond,seeking,tailoring,also,important,improving
AB值：
0.547291
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
