• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguidePlumX LibguideSubmit an Item

    Statistics

    Display statistics

    A new concept to enhance piezoelectricity and temperature stability in KNN ceramics

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Manuscript_Revised version_Chemical Engineering Journal.pdf
    Size:
    2.377Mb
    Format:
    PDF
    Description:
    Accepted manuscript
    Embargo End Date:
    2022-07-17
    Download
    Type
    Article
    Authors
    Lv, Xiang
    Wu, Jiagang
    Zhang, Xixiang cc
    KAUST Department
    Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2020-07-11
    Online Publication Date
    2020-07-11
    Print Publication Date
    2020-12
    Embargo End Date
    2022-07-17
    Submitted Date
    2020-06-01
    Permanent link to this record
    http://hdl.handle.net/10754/664375
    
    Metadata
    Show full item record
    Abstract
    To relieve the sensitivity of piezoelectric coefficient (d33) to composition and strengthen temperature stability of strain in potassium sodium niobate {(K, Na)NbO3, KNN} ceramics, we proposed a new concept, tuning the trade-off between long-range ordering (LRO) and polar nanoregions (PNRs), and realized it by tailoring the content of bismuth (Bi) in an already-constructed multiphase coexistence, namely, 0.96(K0.48Na0.52)(Nb0.955Sb0.045)O3-0.04(BixNa4-3x)0.5ZrO3-0.3 mol%Fe2O3 ceramics. We obtained not only the high retention of > 83% at x = 0.80–1.10 in d33 but also higher d33 at x = 0.90–0.95, relieving the sensitivity of d33 to composition. We also obtained not only the enhanced strain but also the high retention of ≥ 79% over a wide temperature range of 20–180 °C at x = 1.10, irrespective of the electric field, strengthening the temperature stability. We demonstrated that high d33 values hinge on the trade-off between LRO and PNRs, and the enhanced temperature stability of strain originates from the diffused multiphase coexistence and the reduced contribution of domain switching. Therefore, the new concept helps further design high-performance KNN-based ceramics for practical application.
    Citation
    Lv, X., Wu, J., & Zhang, X. (2020). A new concept to enhance piezoelectricity and temperature stability in KNN ceramics. Chemical Engineering Journal, 402, 126215. doi:10.1016/j.cej.2020.126215
    Sponsors
    Dr. Lv and Prof. Zhang thank for the support from King Abdullah University of Science and Technology (KAUST). Prof. Wu thanks for the support from the National Natural Science Foundation of China (Grant no. 51722208).
    Publisher
    Elsevier BV
    Journal
    Chemical Engineering Journal
    DOI
    10.1016/j.cej.2020.126215
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S1385894720323433
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.cej.2020.126215
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

    entitlement

     
    DSpace software copyright © 2002-2021  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.