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Surface modification of Ti dental implants by Nd: YVO4 laser irradiation
(Elsevier B.V., 2007-09-30)
Surface modifications have been applied in endosteal bone devices in order to improve the osseointegration through direct contact between neoformed bone and the implant without an intervening soft tissue layer. Surface ...
Photoluminescence of crystalline and disordered BTO : Mn powder: Experimental and theoretical modeling
(Elsevier B.V., 2007-10-01)
Disordered and crystalline Mn-doped BaTiO3 (BTO:Mn) powders were synthesized by the polymeric precursor method. After heat treatment, the nature of visible photoluminescence (PL) at room temperature in amorphous BTO:Mn was ...
Structural and dielectric properties of Ba0.5Sr0.5(SnxTi1-x)O-3 ceramics obtained by the soft chemical method
(Elsevier B.V. Sa, 2009-05-27)
Ba0.5Sr0.5(SnxTi1-x)O-3 ceramics with different compositions (x = 0, 0.05, 0.10 and 0.20) were synthesized by the soft chemical method. X-ray diffraction patterns and Rietveld refinements revealed that these ceramics ...
Structural and microstructural characterization of SrBi2(Ta0.5Nb0.48W0.02)(2)O-9 powders
(Elsevier B.V. Sa, 2008-04-24)
SrBi2(Ta0.5Nb0.48W0.02)(2)O-9 powders (SBTN-W) were prepared by the polymeric precursor method. The influence of annealing temperature on the phase formation and specific surface area was evaluated. TG/DTA associated with ...
Photoluminescence behavior in MgTiO3 powders with vacancy/distorted clusters and octahedral tilting
(Elsevier B.V. Sa, 2009-09-15)
MgTiO3 powders were prepared by the complex polymerization method and heat treated at different temperatures for 2 h. These powders were analyzed by X-ray diffraction (XRD), Rietveld refinements, micro-Raman (MR) spectroscopy, ...
Thermal analysis applied in the crystallization study of SrSnO3
(Springer, 2009-07-01)
SrSnO3 was synthesized by the polymeric precursor method with elimination of carbon in oxygen atmosphere at 250 A degrees C for 24 h. The powder precursors were characterized by TG/DTA and high temperature X-ray diffraction ...
Effect of barium titanate seed particles on the sintering and lattice parameters in PbMg1/3Nb2/3O3 ceramics
(2002-03-01)
PbMg1/3Nb2/3O3 (PMN) powder was prepared by citrate organic solution, and barium titanate (BT) seed particles were added to encourage the perovskite phase formation. Sintering was followed using the constant heating rate ...
Effect of processing route on the phase formation and properties of Bi4Ti3O12 ceramics
(Elsevier B.V., 2006-01-01)
Our efforts were directed to the preparation of bismuth titanate-Bi4Ti3O12 (BIT) by two procedures: mechanically assisted synthesis and polymeric precursor method to display a variety of their advantages. To follow the ...
Influência do espaçamento do feixe de laser Nd: YAG na obtenção de óxidos e nitretos na superfície do titânio em pressão atmosféricaInfluence of the Nd: YAG laser beam spacing in obtaining oxides and nitrides on titanium surface at atmospheric pressure
(Univ Fed Rio de Janeiro, Lab Hidrogenio, 2014)