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Size effect on structure and dielectric properties of Nb-doped barium titanate
(Elsevier B.V., 2003-12-20)
It is known that the dielectric properties of BaTiO3 (BT) are strongly dependent on its grain size. Coarse-grained ceramics of pure BT showed lower dielectric constant at room temperature then fine grained. Many authors ...
Preparation of 9.5/65/35 PLZT powders by organic precursor method
(2001-01-01)
In this study the preparation of 9.5/65/35 PLZT ceramic powders were investigated. The powders with the formula Pb0.905La0.095(Zr0.65 Ti0.35)0.976O3 + 3.5 w% PbO were prepared using Pechini process and partial oxalate ...
Sintering and characterization of PLZT (9/65/35)
(Elsevier B.V., 2000-01-01)
PLZT(9/65/35) obtained by association between the Pechini method (ZT) and partial oxalate (PLZT) was prepared. The stoichiometric phase and monophasic (cubic) PLZT obtained by calcination did not occur after sintering. The ...
Synthesis of PbTiO3 by use of polymeric precursors
(1998-09-01)
Lead titanate powders were synthesized through the use of polymeric precursors according to the Pechini Process. The polymeric precursor was calcined at temperatures ranging from 300 to 600°C for 1 or 2 h. X-ray diffraction ...
Solvent effect on the optimization of 1,54 µm emission in Er-doped Y2O3-Al2O3-SiO2 powders synthesized by a modified Pechini method
(Elsevier BVAmsterdam, 2013-10)
In order to find a new Er-doped host for near infrared (NIR) optical amplifiers, a study on the optimization of the erbium emission ions in the Y2O3-Al2O3-SiO2 system was performed. (100 - x) Y3Al5O12 - (x) SiO2 powders ...
Activity of platinum-tin catalysts prepared by the Pechini-Adams method for the electrooxidation of ethanol
(ELSEVIER SCIENCE SA, 2009)
Pt-Sn electrocatalysts of different compositions were prepared and dispersed on carbon Vulcan XC-72 using the Pechini-Adams method. The catalysts were characterized by energy dispersive X-ray analysis and X-ray diffraction. ...
Synthesis and sintering of ZrO2-CeO2 powder by use of polymeric precursor based on Pechini process
(Kluwer Academic Publ, 2001-01-01)
Nanocrystalline ZrO2-12 mol % CeO2 powders were synthesized using a polymeric precursor method based on the Pechini process. X-ray diffraction (XRD) patterns showed that the method was effective to synthesize tetragonal ...
Influência da adição de níquel na síntese do SrSnO3
(Associação Brasileira de Cerâmica, 2008-03-01)
Pós cerâmicos microestruturados de Sr1-xNi xSnO3 (x de 0 a 0,20) foram sintetizados com sucesso pelo método dos precursores poliméricos. Os precursores foram caracterizados por análise térmica. Três etapas de decomposição ...
Luminescence in semi-crystalline zirconium titanate doped with lanthanum
(Elsevier B.V., 2006-10-25)
This paper aims to describe the synthesis of the semi-crystalline and crystalline powder of lanthanum doped with zirconium titanate (65/35), LZT through Pechini method. The analysis done by Raman demonstrated that ...
Indium tin oxide films prepared via wet chemical route
(Elsevier B.V., 2007-12-03)
In this work, indium tin oxide (ITO) films were prepared using a wet chemical route, the Pechini method. This consists of a polyesterification reaction between an alpha-hydroxicarboxylate complex (indium citrate and tin ...