Title :
Sol-gel process for the preparation of ultrafine PbTiO3 powders
Author :
Zhang, Qitu ; Zhang, Zhiqi ; Shen, Dawei ; Xue, Wanrong ; Wang, Hui ; Zao, M.
Author_Institution :
Dept. of Silicate Eng., Nanjing Inst. of Chem. Technol., China
fDate :
30 Aug-2 Sep 1992
Abstract :
Tetrabutyl titanate and lead acetate are used as the precursors to prepare ultrafine lead titanate (PbTiO3) powders through the sol-gel process. It is shown that powders with high purity concentration (99.67 wt.%), small particle size (average particle size 0.1 μm), and narrow size distribution can be obtained. The sol-gel-derived gel was highly crystallized after heat treatment at 400°C for 2 h. It is also found that Pb(CH3CO2)2 can be effectively dehydrated at 190°C
Keywords :
X-ray diffraction examination of materials; ceramics; heat treatment; lead compounds; particle size; piezoelectric materials; powder technology; sol-gel processing; thermal analysis; 0.1 micron; 190 C; 2 hours; 400 C; PbTiO3 ultrafine powder; X-ray diffraction; heat treatment; lead acetate; particle size; precursors; size distribution; sol-gel process; tetrabutyl titanate; Ceramics; Chemical analysis; Lead compounds; Pattern analysis; Powders; Reproducibility of results; Temperature; Thermal conductivity; Titanium compounds; X-ray scattering;
Conference_Titel :
Applications of Ferroelectrics, 1992. ISAF '92., Proceedings of the Eighth IEEE International Symposium on
Conference_Location :
Greenville, SC
Print_ISBN :
0-7803-0465-9
DOI :
10.1109/ISAF.1992.300568
