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Resultado 11-20 de 20.
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Data do documentoTítuloAutor(es)
2007Influence of the borohydride concentration on the composition of the amorphous Fe–B alloy produced by chemical reduction of synthetic, nano-sized iron oxide particles Part II. Goethite.Resende, Valdirene Gonzaga de; Grave, Eddy De; Costa, Geraldo Magela da; Janssens, J.
2002Al hematites prepared by homogeneous precipitation of oxinates : material characterization and determination of the Morin transition.Costa, Geraldo Magela da; San, E. Van; Grave, Eddy De; Vandenberghe, Robert Emile; Barrón, Vidal; Datas, L.
2009Heterogeneous Fenton reactants : a study of the behavior of iron oxide nanoparticles obtained by the polymeric precursor method.Giraldi, Tânia Regina; Arruda, Cezar Carvalho de; Costa, Geraldo Magela da; Silva, Elson Longo da; Oliveira, Cauê Ribeiro de
2006The effect of thermal treatment on the 57Fe Mössbauer spectrum of beryl.Costa, Geraldo Magela da; Polli, Gabriel de Oliveira; Kahwage, Márcio A.; Grave, Eddy De; Sabioni, Antônio Claret Soares; Mendes, Julio Cesar
2001About the Morin transition in hematite in relation with particle size and aluminum substitution.Vandenberghe, Robert Emile; San, E. Van; Grave, Eddy De; Costa, Geraldo Magela da
2000Mossbauer characterization of iron oxides and (oxy)hydroxides : the present state of the art.Vandenberghe, Robert Emile; Barrero, C. A.; Costa, Geraldo Magela da; San, E. Van; Grave, Eddy De
2006Production of amorphous Fe–B alloy and a-Fe by chemical reduction of hematite using sodium borohydride.Resende, Valdirene Gonzaga de; Costa, Geraldo Magela da; Grave, Eddy De; Dantas, Lucien
2005Chemical reduction of hematite by sodium borohydride.Resende, Valdirene Gonzaga de; Costa, Geraldo Magela da; Grave, Eddy De; Dantas, Lucien
2001A comparative study of iron concentrates by Mössbauer spectroscopy and optical microscopy.Toríbio, Norberto Magno; Costa, Geraldo Magela da; Sá, Kessel Godinho de; Vieira, Cláudio Batista
2006Effect of heat treatment on tourmaline from Brazil.Castañeda, Cristiane; Eeckhout, Sigrid G.; Costa, Geraldo Magela da; Botelho, Nilson Francisquini; Grave, Eddy De