Hengcheng Liao et al 2009 J. Phys.: Conf. Ser. 188 012009 doi:10.1088/1742-6596/188/1/012009
Hengcheng Liao, Qichang Wu and Liang Xu
Show affiliationsGels and powders of dielectric Ba0.7Sr0.3(Ti1-xMgx)O3 (BST) were prepared by sol-gel technique. Effect of Mg-doping of on the pyrolysis evolution and phase constitutes of BSTs was investigated using DSC-TG and XRD. Results show that Mg-doping leads to a remarkable change of crystallizing process of BSTs from a double phase-transformation of non-doping sample into a single phase-transformation and quickens the crystallizing reaction of formation of BST perovskite. The maximum Mg-doping level should be less than x = 0.15 in Ba0.7Sr0.3 (Ti1-xMgx)O3 system. The amount of (Ba,Sr)CO3 phase in the BST powders increases considerably with the Mg-doping level, indicating Mg atoms should occupy the A positions of ABO3 structure of BST, instead of the B position.
77.55.+f Dielectric thin films
68.55.A- Nucleation and growth
64.70.K- Solid–solid transitions
77.80.-e Ferroelectricity and antiferroelectricity
68.55.Ln Defects and impurities: doping, implantation, distribution, concentration, etc.
Condensed matter: electrical, magnetic and optical
Issue 1 (2009)
Hengcheng Liao et al 2009 J. Phys.: Conf. Ser. 188 012009
Sin Kim et al 2009 Meas. Sci. Technol. 20 125404
Zi-Liang Li 2008 J. Phys. A: Math. Theor. 41 145206
Yong Jiang et al 2009 J. Phys.: Conf. Ser. 190 012100
Ana B Villafranca and Kalaichelvi Saravanamuttu 2009 J. Opt. A: Pure Appl. Opt. 11 125202
R Sordan et al 2008 Nanotechnology 19 335201
K Kato et al 2009 J. Phys.: Conf. Ser. 190 012170
R D White et al 2009 J. Phys. D: Appl. Phys. 42 194001
Cunxia Li et al 2009 J. Micromech. Microeng. 19 125007
T Fix et al 2007 Nanotechnology 18 495708