Metastability and crystal growth kinetics on L-arginine phosphate by G. Arunmozhi and E. de M. Gomes

Crystal Research and Technology

Cryst. Res. Technol. 39, 34 (2004) - Abstract -

Metastability and crystal growth kinetics on L-arginine phosphate

G. Arunmozhi and E. de M. Gomes

Departamento de Fisica, Universidade do Minho, Campus de Gualtar, Braga 4710, Portugal

Keywords	piezoelectric ceramics, lead-free, bismuth sodium titanate, Bi0.5Na0.5TiO3, nucleation, crystal growth, L-arginine phosphate
PACS	81.10.Dn
DOI	10.1002/crat.200310146

Stability of saturated L-Arginine Phosphate (LAP) solution studied as a function of supercooling rate and crystal growth kinetics investigated as a function of supersaturation are reported in this communication. Solution stability was studied by observing the metastable zone width at different cooling rates employing a polythermal method. Analysis of the experimental data yielded the kinetic constant of nucleation and the order of nucleation. Crystal growth rates studied on small seed crystals with regular morphology, under normal growth conditions and at different supersaturation levels were found to satisfy BCF surface diffusion model. Crystal growth rates were investigated normal to the (100), (010) and (00-1) faces.

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