TY - JOUR
T1 - Pb(Zr0.95Ti0.05)O3 powders and porous ceramics prepared by one-step pyrolysis process using non-aqueous Pechini method
AU - Qiu, Shaojun
AU - Zheng, Xiaodong
AU - Gao, Chao
AU - Gan, Xiaoxian
AU - Chen, Jin
AU - Yang, Chen
AU - Fan, Huiqing
PY - 2009/3
Y1 - 2009/3
N2 - Using non-aqueous Pechini method, Pb(Zr0.95Ti0.05)O3 powders were prepared at low temperature by one-step pyrolysis process. The polymeric gels and powders were characterized using a range of techniques, such as DTG, XRD, SEM, Raman spectroscopy, and laser particle size distribution. The perovskite phase was formed at about 350-400 °C and some oxocarbonate impurities can be detected in all samples after calcining at 400-850 °C by one-step pyrolysis process. Phase pure and porous Pb(Zr0.95Ti0.05)O3 ceramics were obtained without pore formers from the powders by one-step pyrolysis process at 500 °C for 4 h. The relative densities were 87%, 91% and 94% for the ceramics sintered at 1100, 1150 and 1200 °C for 2 h, respectively. The porous ceramics sintered at 1200 °C for 2 h have homogeneously dispersed pores and fine-grain structures with an individual grain size of 0.7-2 μm.
AB - Using non-aqueous Pechini method, Pb(Zr0.95Ti0.05)O3 powders were prepared at low temperature by one-step pyrolysis process. The polymeric gels and powders were characterized using a range of techniques, such as DTG, XRD, SEM, Raman spectroscopy, and laser particle size distribution. The perovskite phase was formed at about 350-400 °C and some oxocarbonate impurities can be detected in all samples after calcining at 400-850 °C by one-step pyrolysis process. Phase pure and porous Pb(Zr0.95Ti0.05)O3 ceramics were obtained without pore formers from the powders by one-step pyrolysis process at 500 °C for 4 h. The relative densities were 87%, 91% and 94% for the ceramics sintered at 1100, 1150 and 1200 °C for 2 h, respectively. The porous ceramics sintered at 1200 °C for 2 h have homogeneously dispersed pores and fine-grain structures with an individual grain size of 0.7-2 μm.
KW - A. Powders: chemical preparation
KW - B. Porosity
KW - B. Spectroscopy
KW - D. PZT
UR - http://www.scopus.com/inward/record.url?scp=57749113268&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2008.02.001
DO - 10.1016/j.ceramint.2008.02.001
M3 - 文章
AN - SCOPUS:57749113268
SN - 0272-8842
VL - 35
SP - 733
EP - 740
JO - Ceramics International
JF - Ceramics International
IS - 2
ER -