Open AccessFabrication and growing kinetics of highly dispersed gadolinium zirconate nanoparticles
Author(s) -
Renbo Zhu,
Jianpeng Zou,
Jie Mao,
Xiaofeng Zhang,
Chunming Deng,
Min Liu,
Wenlong Chen
Publication year - 2019
Publication title -
research and application of materials science
Language(s) - English
Resource type - Journals
eISSN - 2661-4456
pISSN - 2661-4464
DOI - 10.33142/msra.v1i1.670
Subject(s) - calcination , activation energy , zirconate , chemical engineering , materials science , pulmonary surfactant , nanoparticle , microstructure , gadolinium , precipitation , kinetics , solvent , inorganic chemistry , chemistry , ceramic , nanotechnology , organic chemistry , catalysis , composite material , metallurgy , physics , quantum mechanics , meteorology , engineering , titanate
Highly dispersed gadolinium zirconate (GZ) nanoparticles with fluorite microstructure were successfully synthesized using a co-precipitation method, and their phase composition and microstructure, formation mechanism, and grain growth kinetics were investigated. The results suggest that the nanoparticles were obtained through hydroxide dehydration followed by solid phase reaction. High dispersion was accomplished using ethanol solvent to reduce the hydrogen bond and sodium dodecyl benzene sulfonate (SDBS) surfactant to increase the electrostatic repulsion between the nanoparticles. The grain growth activation energy of GZ powders calcined at lower temperature ( 1200 °C) is 148.4 kJ/mol (Qh). The current study shows that the optimal process to synthesize dispersed GZ nanoparticles includes ethanol solvent, 3 wt.% SDBS surfactant, and 1100 °C as calcining temperature.