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Synthesis and crystal phase evaluation of hydroxylapatite using the rietveld-maximum entropy method
(2004-12-01)
Bioceramic systems based on hydroxylapatite (HAP) are an important class of bioactive materials that may promote bone regeneration. The aim of this research was to evaluate how the stoichiometry of HAP influences its ...
X-ray powder data and bond valence of La0.65Sr0.35MnO3 after Rietveld refinement
(J C P D S-int Centre Diffraction Data, 2014)
Physical characterization of K-doped 0.9PMN-0.1PT synthesized by an association of the columbite route and the polymeric precursor method
(2005-12-01)
The solid solution 0.9PbMg 1/3Nb 2/3O 3-0.1PbTiO 3 is one of the most widely investigated relaxor ceramic, because of its high dielectric constant and low sintering temperatures. PMN-PT powders containing single perovskite ...
Correlação entre dados estruturais e bandas de vibração no infravermelho para a fase espinélio Zn7-xNi xSb2O12
(Associação Brasileira de Cerâmica, 2014)
Aplicação do Método de Rietveld em caracterização estrutural e nanoestrutural do espinélio 'Ni IND. 1'- 'delta' Co'delta''Fe IND.2''O IND.4' preparado por reação de combustão
(Universidade Estadual Paulista (UNESP), 2014)
Atenolol characterization in solid formulations available in Brazilian market
(2013)
Atenolol is the most used drug in Brazil to hypertension treatment. Two crystal structures are known for this molecule: a racemic form (R,S)-atenolol and a pure form S-atenolol. The racemic form is found in commercial ...
Effect of the Addition of Potassium or Lithium on the Columbite Precursor Microstructure
(ABM, ABC, ABPol, 2002-10)
Pechini method has been used to synthesize MN powders with stoichiometric control. By this method, K and Li-doped MN in the range from 0.1 to 5.0 mol% of dopants have been obtained at relatively lower temperatures than it ...
Solid-state evaluation and polymorphic quantification of venlafaxine hydrochloride raw materials using the Rietveld method
(Elsevier Science, 2013-09)
Venlafaxine hydrochloride (VEN) is an antidepressant drug widely used for the treatment of depression. The purpose of this study was to carry out the preparation and solid state characterization of the pure polymorphs ...
Synthesis and characterization of 0.9PMN-0.1PT powders by the use of a modified columbite precursor
(2005-12-01)
The complex perovskite compound 0.9PbMg 1/3Nb 2/3O 3-0.1PbTiO 3 is one of the most promising relaxor ceramic because the addition of lead titanate increases T m, by about 5°C/mol% from intrinsic T m value for pure PMN (near ...