Effect of Mineralizer on the Hydrothermal Synthesis of Bi0.5Na0.5TiO3 Lead-Free Piezoelectric Crystals

Abstract:

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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.

Info:

Periodical:

Edited by:

Tianbiao Zhang and Jerry Tian

Pages:

209-214

DOI:

10.4028/www.scientific.net/AMR.298.209

Citation:

H. Yang et al., "Effect of Mineralizer on the Hydrothermal Synthesis of Bi0.5Na0.5TiO3 Lead-Free Piezoelectric Crystals", Advanced Materials Research, Vol. 298, pp. 209-214, 2011

Online since:

July 2011

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Price:

$35.00

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