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The influence of temperature on the color of TiO2:Cr pigments
(Pergamon-Elsevier B.V. Ltd, 2009-05-06)
TiO2:Cr brown pigments were prepared via a polymeric precursor derived from the Pechini method. The pigments were analyzed by infrared spectroscopy, X-ray diffraction, ultraviolet-vis spectroscopy, and colorimetry. The ...
Effect of the modifier ion on the properties of MgFe2O4 and ZnFe2O4 pigments
(Springer, 2007-03-01)
Magnesium and zinc ferrites have been prepared by the polymeric precursor method. The organic material decomposition was studied by thermogravimetry (TG) and differential thermal analysis (DTA). The variation of crystalline ...
Structural and thermal characterization of Zn2-xCoxTiO4
(Springer, 2009-07-01)
In this work, spinels with the general formula Zn2-xCoxTiO4 were synthesized by the polymeric precursor method and thermally treated at 1,000 A degrees C. The powder precursors were characterized by TG/DTA. A decrease in ...
Análise físico-química de cerveja american lager maturada com pimenta rosa (aroeira)
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia Química, 2018-06-21)
Beer is an alcoholic beverage obtained by the alcoholic fermentation of brewer's must originated from barley malt and water, with yeast action and addition of hops. The objective of this study was to evaluate the physical ...
Black and green pigments based on chromium-cobalt spinels
(Elsevier B.V. Sa, 2011-09-15)
Chromium and cobalt oxides are widely used in the manufacture of industrial pigments. In this work, the Co(Co(2-x)Cr(x))O(4) powders with different chromium concentrations (x = 0, 0.25 and 1) were synthesized by the polymeric ...
Color and structural analysis of CoxZn7-xSb2O12 pigments
(Elsevier B.V., 2006-11-09)
The polymeric precursor method was successfully used to synthesize CoxZn7-xSbO12 (x = 0-7) powders. Pigments were evaluated using colorimetry, X-ray diffraction, UV-vis and infrared spectroscopy. The optical band gap values ...
Effect of the modifier ion on the properties of MgFe2O4 and ZnFe2O4 pigments
(Springer, 2007-03-01)
Magnesium and zinc ferrites have been prepared by the polymeric precursor method. The organic material decomposition was studied by thermogravimetry (TG) and differential thermal analysis (DTA). The variation of crystalline ...
The influence of temperature on the color of TiO2:Cr pigments
(Pergamon-Elsevier B.V. Ltd, 2009-05-06)
TiO2:Cr brown pigments were prepared via a polymeric precursor derived from the Pechini method. The pigments were analyzed by infrared spectroscopy, X-ray diffraction, ultraviolet-vis spectroscopy, and colorimetry. The ...
Structural and thermal characterization of Zn2-xCoxTiO4
(Springer, 2009-07-01)
In this work, spinels with the general formula Zn2-xCoxTiO4 were synthesized by the polymeric precursor method and thermally treated at 1,000 A degrees C. The powder precursors were characterized by TG/DTA. A decrease in ...
Método de quantificação da capacidade antioxidante total sérica: padronização e validação para espécie ovina
(Universidade Estadual Paulista (Unesp), 2014-06-09)
The determination of total antioxidant capacity (TAC) is important to evaluation of oxidative stress, in both humans and animals. The study of methodologies to the determination of TAC has become relevant in several areas ...