2 documents found, page 1 of 1
Caracterização da mistura de argilas e rejeitos da pedra Cariri: resultados pre...
Livalter, Eulivana Assunção; Lima, Zilma Mendes de; Nogueira, Ricardo Emílio Ferreira Quevedo; Nogueira Neto, José de Araújo; Sasaki, José MarcosThis work presents the characterization of clays from Cariri region (State of Ceará-Brazil) and the production of composite materials formed by this clays and Cariri Stone (Limestone), aiming the use of rejects produced during the Cariri rock extraction process to the fabrication of red ceramics. Samples with different concentrations of Cariri rock (10%, 15%, 20% and 30%) dispersed in clays have been prepared, ...
Nova rota de síntese de nanopartículas de NiMn2O4 usando o método sol-gel protéico
Lima, Zilma Mendes deThis work presents a new route for the synthesis of nickel manganate (NiMn2O4) through the sol-gel protein method, using gelatin as an organic precursor. The synthesis of nanoparticles was performed by dilution of inorganic salts (NiCl2.6H2O, MnCl2.4H2O) and gelatin in distilled water with the addition of sodium hydroxide (NaOH). This solution was then placed in an oven at a fixed temperature of 100°C to make i...