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Published online by Cambridge University Press: 31 January 2011
Several ABO3 perovskite ferroelectric crystals, PbTiO3, Pb(Zr, Ti)O3, and BaTiO3 have been in situ grown from amorphous gels with glass elements, and the structural evolution has been systematically investigated using x-ray diffraction (XRD), infrared spectra (IR), differential thermal analysis (DTA), thermogravimetric analysis (TGA), and dielectric measurements. It is found that in the Si-contained glass-ceramic systems, Si and B glass elements are incorporated into the crystalline structures, resulting in the variation of the crystallization process, change of lattice constant, and dielectric properties. Some metastable phases expressed by a general formula AxByGzOw (A = Pb and Ba; B = Zr and Ti; G for glass elements, especially for Si) have been observed and discussed.