TY - JOUR
T1 - Structural studies of evolution of solid solutions of BaTiO 3 doped with Er 3+ (solid-state reaction method)
AU - Pérez-Labra, Miguel
AU - Barrientos-Hernández, Francisco R.
AU - Hernández-Lara, Juan P.
AU - Romero-Serrano, José A.
AU - Reyes-Pérez, Martín
AU - Reyes-Cruz, Víctor E.
AU - Juárez-Tapia, Julio C.
AU - Urbano-Reyes, Gustavo
N1 - Publisher Copyright:
© 2018 Centro Nacional de Investigaciones Metalurgicas. All rights reserved.
PY - 2018/10/1
Y1 - 2018/10/1
N2 - Erbium doped BaTiO 3 compositions were synthetized using the conventional solid-state method in air atmosphere, according to the general formula Ba1-xErxTi1-x/4O 3 and x = 0.0, 0.003, 0.005, 0.01, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35 Er 3+ (wt. %). BaTiO 3 :Er 3+ were prepared using barium carbonate [BaCO 3 ], titanium oxide [TiO 2 ] and erbium oxide [Er2O 3 ] as precursors. The powders were decarbonated at 900°C for 12 h and sintered at 1400°C for 12 h. The structural evolution of solid solutions was monitored by X-ray diffraction, Raman spectroscopy, Infrared spectroscopy and scanning electron microscopy. The results showed that the crystal phase of the particles obtained was predominately tetragonal BaTiO 3 . A secondary phase identified as a pyrochlore (Er 2 Ti 2 O 7 ) was found when the Er 3+ content was higher than 0.05 wt. %. The solubility limit of Er 3+ in the crystal structure of BaTiO 3 was reached when x was = 0.05. The results obtained by MEB-EDS indicated the incorporation of erbium in the crystalline structure of BaTiO 3 . The IR results showed no absorption bands contamination of O-H group into the products.
AB - Erbium doped BaTiO 3 compositions were synthetized using the conventional solid-state method in air atmosphere, according to the general formula Ba1-xErxTi1-x/4O 3 and x = 0.0, 0.003, 0.005, 0.01, 0.05, 0.1, 0.15, 0.20, 0.25, 0.30, 0.35 Er 3+ (wt. %). BaTiO 3 :Er 3+ were prepared using barium carbonate [BaCO 3 ], titanium oxide [TiO 2 ] and erbium oxide [Er2O 3 ] as precursors. The powders were decarbonated at 900°C for 12 h and sintered at 1400°C for 12 h. The structural evolution of solid solutions was monitored by X-ray diffraction, Raman spectroscopy, Infrared spectroscopy and scanning electron microscopy. The results showed that the crystal phase of the particles obtained was predominately tetragonal BaTiO 3 . A secondary phase identified as a pyrochlore (Er 2 Ti 2 O 7 ) was found when the Er 3+ content was higher than 0.05 wt. %. The solubility limit of Er 3+ in the crystal structure of BaTiO 3 was reached when x was = 0.05. The results obtained by MEB-EDS indicated the incorporation of erbium in the crystalline structure of BaTiO 3 . The IR results showed no absorption bands contamination of O-H group into the products.
KW - BaTiO
KW - Doping
KW - Er
KW - Sintering
UR - http://www.scopus.com/inward/record.url?scp=85058231965&partnerID=8YFLogxK
U2 - 10.3989/revmetalm.129
DO - 10.3989/revmetalm.129
M3 - Artículo
SN - 0034-8570
VL - 54
JO - Revista de Metalurgia (Madrid)
JF - Revista de Metalurgia (Madrid)
IS - 4
ER -