Synthesis, structural and electrical properties of BaTiO3 doped with Gd3+



Document title: Synthesis, structural and electrical properties of BaTiO3 doped with Gd3+
Journal: Mexican journal of materials science and engineering
Database: PERIÓDICA
System number: 000392623
ISSN: 0187-5779
Authors: 1
1
1
2
3
4
1
Institutions: 1Universidad Autónoma del Estado de Hidalgo, Area Académica de Ciencias de la Tierra y Materiales, Mineral de la Reforma, Hidalgo. México
2Instituto Politécnico Nacional, Escuela Superior de Ingeniería Química e Industrias Extractivas, México, Distrito Federal. México
3Instituto Tecnológico de Pachuca, Departamento de Ingeniería Mecánica, Pachuca, Hidalgo. México
4Universidad Nacional Autónoma de México, Facultad de Química, México, Distrito Federal. México
Year:
Volumen: 3
Number: 1
Pages: 7-12
Country: México
Language: Inglés
Document type: Artículo
Approach: Aplicado, descriptivo
English abstract Polycristaline BaTiO3 doped with Gd3+ (Ba1-xGdxTi1-x/4O3) was synthesized using the solid state reaction method; grinding BaTiO3, BaCO3, TiO2, and Gd2O3 in agate mortar, with acetone as a control medium and x = 0.001, 0.003, 0.005, 0.01, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35 Gd3+ (wt. %). The powders were decarbonated at 900°C and sintered at 1400 °C for 8 hours. Tetragonality of synthesized BaTiO3 doped with Gd3+ particles were analysed by X-ray diffractometry (XRD) and Raman spectroscopy (RS). XRD results of the physical mixture of the precursor powders indicated the presence of BaTiO3 phase, which increased when the temperature was increased. XRD patterns and Raman spectra revealed that the crystal phase of the obtained particles was predominately tetragonal BaTiO3, intensity of Raman band at 205 cm−1 265 cm−1 and 305 cm−1 increased when Gd3+ was increased. Capacitance of the sintering pellets was measured at 1kHz; these values were using for to calculate the relative permittivity
Disciplines: Ingeniería
Keyword: Ingeniería de materiales,
Materiales ferroeléctricos,
Síntesis química,
Trióxido de titanio-bario,
Propiedades eléctricas,
Dopaje,
Gadolinio,
Espectroscopía Raman
Keyword: Engineering,
Materials engineering,
Ferroelectric materials,
Chemical synthesis,
Barium-titanium trioxide,
Electrical properties,
Doping,
Gadolinium,
Raman spectroscopy
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