Effect of mineralizer on the hydrothermal synthesis of Bi 0.5Na0.5TiO3 lead-free piezoelectric crystals

Hui Yang*, Gai Yang, Yun Liu, Chuang Wang

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    The effect of mineralizer upon the fabrication of lead-free, piezoelectric Bi0.5Na0.5TiO3 (BNT) was investigated using a hydrothermal reaction technique. Results indicated that BNT crystals can be formed in a basic environment controlled by a NaOH mineralizer. The morphologies and sizes of the resultant particles are determined by the concentration of NaOH: a lower alkaline concentration leads to the particles with a spherical shape consisting of a number of small, intergrown BNT crystals while a higher NaOH concentration (e.g. > 12 mol/L) results in large, individual BNT cubes. Possible growth mechanisms of the BNT particles were discussed in conjunction with surface hydration, dehydration and free water content during the hydrothermal reaction.

    Original languageEnglish
    Title of host publicationSoft Magnetic Materials
    Pages209-214
    Number of pages6
    DOIs
    Publication statusPublished - 2011
    Event2011 International Conference on Soft Magnetic Materials, ICSMM 2011 - Male, Maldives
    Duration: 23 May 201124 May 2011

    Publication series

    NameAdvanced Materials Research
    Volume298
    ISSN (Print)1022-6680

    Conference

    Conference2011 International Conference on Soft Magnetic Materials, ICSMM 2011
    Country/TerritoryMaldives
    CityMale
    Period23/05/1124/05/11

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