TY - GEN
T1 - Effect of mineralizer on the hydrothermal synthesis of Bi 0.5Na0.5TiO3 lead-free piezoelectric crystals
AU - Yang, Hui
AU - Yang, Gai
AU - Liu, Yun
AU - Wang, Chuang
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
KW - Bismuth sodium titanate
KW - Hydrothermal synthesis
KW - Lead-free
KW - Piezoelectric ceramic
UR - http://www.scopus.com/inward/record.url?scp=80052055071&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.298.209
DO - 10.4028/www.scientific.net/AMR.298.209
M3 - Conference contribution
AN - SCOPUS:80052055071
SN - 9783037851876
T3 - Advanced Materials Research
SP - 209
EP - 214
BT - Soft Magnetic Materials
T2 - 2011 International Conference on Soft Magnetic Materials, ICSMM 2011
Y2 - 23 May 2011 through 24 May 2011
ER -