Effects of glass elements on the structural evolution of {bold {ital in situ}} grown ferroelectric perovskite crystals in sol-gel derived glass-ceramics
- Microelectronics Center, School of Electrical and Electronic Engineering, Nanyang Technological University, (Singapore) 639798
- Electronic Materials Research Laboratory, Xi`an Jiaotong University, Xi`an 710049 (China)
Several ABO{sub 3} perovskite ferroelectric crystals, PbTiO{sub 3}, Pb(Zr,Ti)O{sub 3}, and BaTiO{sub 3} have been {ital 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 A{sub x}B{sub y}G{sub z}O{sub w} (A=Pb and Ba; B=Zr and Ti; G for glass elements, especially for Si) have been observed and discussed. {copyright} {ital 1997 Materials Research Society.}
- OSTI ID:
- 491635
- Journal Information:
- Journal of Materials Research, Vol. 12, Issue 4; Other Information: PBD: Apr 1997
- Country of Publication:
- United States
- Language:
- English
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