Gadolinium Oxide
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Study of NiO-GDC material produced by aqueous tape casting
ABSTRACT Studies have been developed in last decades in order to produce NiO-based material to be used as anode in solid oxide fuel cell (SOFC). Aqueous-based tape casting was used to produce NiO-GDC substrates with smooth and homogeneous surfaces and good flexibility. Physical and mechanical properties were obtained in green tapes sintered at temperatures r
Matéria (Rio J.). Publicado em: 08/01/2018
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2. New Zr-based glass-forming alloys containing Gd and Sm
The effect of minor additions of Gd and Sm on the glass-forming ability (GFA) of Cu-Zr-Al alloys is investigated here. The rationale for these additions is the fact that the atomic size distribution can increase GFA by changing the topology of the alloy as a function of cluster stability, which is tied to the electronegativity and ionic and covalent nature o
Mat. Res.. Publicado em: 09/08/2012
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3. Controle de tamanho de nanopartículas de óxido de gadolínio dopado com európio (III) / Nanoparticles size control of europium (III)-doped gadolinium oxide
Neste trabalho, foram estudadas a síntese e a caracterização de nanopartículas de óxido de gadolínio dopado com európio(III). Os óxidos de gadolínio foram obtidos pela termodecomposição dos precursores hidroxicarbonatos de gadolínio sintetizados a partir do método da precipitação homogênea, utilizando-se a termólise da uréia como fonte de �
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2010
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4. SÃntese e estudo espectroscÃpico de complexos de Ãons lantanÃdeos incorporados em materiais hÃbridos orgÃnicos-inorgÃnicos
In this work two new europium and gadolinium b-diketonate complexes, [Ln(btfa)3(4,4 -bpy)(EtOH)] (Ln = Eu, Gd; 4,4 -bpy = 4,4 -bipyridine; btfa = 4,4,4- trifluoro-l-phenyl- 1,3-butanedione), were prepared and incorporated into a organicinorganic hybrid material. The general formulae of these complexes were confirmed by X-rays single crystal data and elementa
Publicado em: 2007
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5. Effect of surface deposited rare earth oxide gel characteristics on cyclic oxidation behavior of Fe20-Cr alloys
Rare earths have been used to increase high temperature oxidation resistance of many chromium dioxide and alumina forming alloys. These rare earths can be added as elements (or as oxide dispersions) to the alloys or applied as an oxide coating to the alloy surface. The sol-gel technique is considered to be very efficient to apply fine oxide particle coatings
Materials Research. Publicado em: 2006-06
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6. Estudo do mecanismo de bloqueio da sinterização no sistema UO2-Gd2O3 / Studies on the sintering blockage mechanism in the UO2-Gd2O3 system
A incorporação do gadolínio diretamente no combustível de reatores nucleares para geração de eletricidade é importante para compensação da reatividade e para o ajuste da distribuição da densidade de potência, permitindo ciclos de queima mais longos, com intervalo de recarga de 18 meses, otimizando-se a utilização do combustível. A incorporaç�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/03/2001
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7. Termoquimica de quelatos de 2,2,6,6-tetrametil-3,5-heptanodiona com elementos lantanidicos
The chelates [Ln(thd)3, cr] (Ln = La, Pr, Nd, Sm, Gd, Tb, Ho, Er, Tm and Yb; thd = 2,2,6,6-tetramethyl-3,5-heptanedionato) were prepared, characterized and thermochemically studied through reaction-solution calorimetry, by using HCl.26,64 H2O (aq) as solvent, based on the following reaction LnCl3.6H2O(cr) + 3 Hthd(l) + 73,92H2O(l) = [Ln(thd)3,cr] + 3HCl.26,6
Publicado em: 1992