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Preparação, propriedades e performance fotocatalítica de novos compósitos mesoporosos: TiO2-Ce:SiO2
(Universidade Federal de São Paulo, 2017-07-04)
TiO2:SBA-15 (TiSBA) e TiO2-CeO2:SBA-15 (TiCeSBA) composites were synthesized by direct synthesis (DS) and post-synthesis (PS) methods using Pluronic® P123 (EO20PO70EO20) as a structure-directing agent, in acidic solution, ...
Dielectric properties and microstructure of SrTiO3/BaTiO3 multilayer thin films prepared by a chemical route
(Elsevier B.V., 2001-04-02)
Multilayer thin films with perovskite structures were produced by the polymeric precursor method. SrTiO3/BaTiO3 (STO/BTO) multilayers were deposited on Pt(111)/Ti/SiO2/Si(100) substrates by the spin-coating technique and ...
Dielectric properties and microstructure of SrTiO3/BaTiO3 multilayer thin films prepared by a chemical route
(Elsevier B.V., 2001-04-02)
Multilayer thin films with perovskite structures were produced by the polymeric precursor method. SrTiO3/BaTiO3 (STO/BTO) multilayers were deposited on Pt(111)/Ti/SiO2/Si(100) substrates by the spin-coating technique and ...
Preparação e caracterização de filmes finos do tipo 'Pb IND. 1-x-yCa IND. xSr IND.yTiO IND. 3'
(Universidade Estadual Paulista (Unesp), 2008-07-07)
Neste trabalho de dissertação de mestrado foram preparadas amostras do sistema 'Pb IND. 1-x-yCa IND. xSr IND.yTiO IND. 3' (PCST) com x = 0.05, 0,15, 0,35 e y = 0,05, 0.15, 0,35, utilizando-se o método dos precursores ...
Optical properties of ZrO2, SiO2 and TiO2-SiO2 xerogels and coatings doped with Eu3+ and Eu2+
(ABM, ABC, ABPol, 1999-01)
Eu3+ doped bulk monoliths and thin films were obtained by sol-gel methods in the ZrO2, SiO2 and SiO2-TiO2 systems. Eu3+ 5D0 ® 7FJ emission and decay time characteristics were measured during the entire experimental preparation ...
Structural and electrical characterization of semiconducting barium-lead-titanate ceramics
(Gordon Breach Sci Publ Ltd, 2001-01-01)
BaTiO3 is usually doped to achieve the temperature stability required by device applications, as well as to obtain a large positive temperature coefficient anomaly of resistivity (PTCR). Uniform distribution of dopants ...
Structural and electrical characterization of semiconducting barium-lead-titanate ceramics
(Gordon Breach Sci Publ Ltd, 2001-01-01)
BaTiO3 is usually doped to achieve the temperature stability required by device applications, as well as to obtain a large positive temperature coefficient anomaly of resistivity (PTCR). Uniform distribution of dopants ...
Physicochemical analysis of Ti-Si-B powder aalloys
(2012-11-26)
Titanium alloys of Ti-Si-B system were manufactured by blended elemental powder method using Ti, Si and B powders as starting materials. It was found that uniaxial and isostatic pressing followed by hot pressing at around ...