Eventos - Resumos
URI Permanente para esta coleçãohttps://repositorio.ipen.br/handle/123456789/8932
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Resumo IPEN-doc 32022 The effect of radiation dose onto PLA for drug delivery system2024 - CABRAL, DANIELA F.; ZEN, HELOISA A.; LUGAO, ADEMAR B.Resumo IPEN-doc 32021 Effect of molecular sieve incorporated into fluoroelastomer on the mechanical properties2024 - ZEN, HELOISA A.; LUGAO, ADEMAR B.Resumo IPEN-doc 32020 Micro-cartucho dedicado à concentração de radionuclídeos para sínteses de radiofármacos2024 - GOMES, ANTONIO A.; NARIO, ARIAN P.; LAPOLLI, ANDRE L.; LAPOLLI, ANDRE L.; ROSSI, WAGNER deResumo IPEN-doc 32019 Characterization of PVP hydrogel synthesized by e-beam for drug delivery system2025 - ZEN, HELOISA A.; CABRAL, DANIELA F.; LUGAO, ADEMAR B.Resumo IPEN-doc 32018 Characterization of polylactic acid incorporated with nitazoxanide for drug delivery system2025 - CABRAL, DANIELA F.; ZEN, HELOISA A.; LUGAO, ADEMAR B.Resumo IPEN-doc 32017 Analysis of the luminescent emission during the sharp shrinkage of ceramic compacts in electric-field-assisted sintering2025 - MUCCILLO, R.; MUCCILLO, E. N. S.; ALBORNOZ DIAZ, J. C.Resumo IPEN-doc 32016 Desenvolvimento de membranas cerâmicas para detecção de dióxido de carbono2025 - MEDINA, M. S.; MUCCILLO, E. N. S.; MUCCILLO, R.Resumo IPEN-doc 32015 Ti6Al4V turning with femtosecond laser textured tools2025 - SOUZA, FELIPE C. R. de; ROSSI, WAGNER de; MACHADO, ALISSON R.; PAULA, FABIO R. de; BOING, DENIS; KURODA, MARCELOMachining the Ti6Al4V alloy is challenging due to its mechanical properties, such as high strength, low thermal conductivity, and high reactivity against all currently available tool materials. To address these challenges and enhance process efficiency, strategies such as tool texturing have emerged as promising alternatives. This research investigated the effect of groove-type textures produced by femtosecond laser on the rake face of carbide tools during the turning of the Ti6Al4V (Grade 5) alloy, using flood application of cutting fluid. Various texture configurations were studied, with a particular focus on texture orientation, dimensions, and distance from the cutting edge, as well as feed rate as a key cutting parameter. The objective was to understand the impact of these textures on machining performance and optimize the process, primarily by analyzing cutting forces and workpiece roughness as response parameters. Initially, the texture characteristics were defined based on average values found in the literature for turning Grade 5 titanium, ensuring a well-founded approach to selecting the experimental conditions. To optimize the process, a CCD (Central Composite Design) and RSM (Response Surface Methodology) were used, allowing statistically organized experiments to be conducted. This method enabled the development of predictive models that help understand the behavior of textured tools under different machining conditions. The results showed that the effectiveness of texturing is not uniform across all feed rate ranges investigated. In certain conditions, textures reduced cutting forces and improved the quality of the machined surface, while in others they did not provide significant benefits, although the cutting forces were more sensitive to texture variations than workpiece surface roughness. Overall, the results of this study demonstrate that femtosecond laser texturing of tools is a promising strategy for improving the turning of the Ti6Al4V alloy.Resumo IPEN-doc 32014 Implementation of an ultra-high-intensity laser as a multi-user scientific infrastructure in Brazil2025 - VIEIRA JUNIOR, NILSON D.; ROSSI, WAGNER de; BONATTO, ALEXANDRE; SAMAD, RICARDO E.FINEP, a federal funding agency of Brazil, has approved a project to implement a relativistic laser to serve as a multi-user research infrastructure. The laser, which will start operations in 2026 at IPEN, will generate pulses with 35 fs and 0.5 J at 800 nm, with 15 TW of peak power, at 10 Hz, with intensity exceeding 10^19 W/cm2. This system will function as a compact electron and proton accelerator and will create extreme conditions similar to those found inside stars, enabling nuclear microfusion studies and expanding the electromagnetic radiation spectrum available to the scientific community in Brazil.Resumo IPEN-doc 32013 Dedicated micro-cartridge for radionuclide concentration in radiopharmaceutical development and production2024 - GOMES, ANTONIO A.; NARIO, ARIAN P.; LAPOLLI, ANDRE L.; SILVA, EVANDRO D. da; SAMAD, RICARDO E.; BERNARDES, EMERSON S.; ROSSI, WAGNER deResumo IPEN-doc 32012 IPEN – Nuclear and Energy Research Institute2024 - ANDRADE, D. A.Resumo IPEN-doc 32010 Characterization of micro-cartucho applied to fluorine-18 concentration developing with ultrashort laser pulse2024 - NARIO, ARIAN P.; GOMES, ANTONIO A.; LAPOLLI, ANDRE L.; SILVA, EVANDRO D. da; SAMAD, RICARDO E.; BERNARDES, EMERSON S.; ROSSI, WAGNER deResumo IPEN-doc 32009 Dealing with post-irradiation examination residues in Brazil2024 - GARCIA, RAFAEL H. L.Resumo IPEN-doc 32007 Advancing direct ethanol metal-supported fuel cells with a perovskite catalytic layer2025 - CARVALHO, S. G. M.; TABUTI, F.; SANTIAGO, E. I.; ABE, R.; GUIMARAES, R. M.; HUSSAIN, A. M.; MIURA, Y.; FUKUYAMA, Y.; FONSECA, F. C.Resumo IPEN-doc 32006 Metal-water oxidation behavior of niobium-stabilized austenitic stainless steel under LOCA conditions2025 - NOGUEIRA, JULIANA; SOUZA, NATALIA; CAMARGO, FABIO; MOTTA, CLAUDIAResumo IPEN-doc 32004 Estudo eletroquímico da aplicação de compósito polimérico como membrana trocadora de ânion em célula a combustível2024 - SILVA, MARIA V.; ZEN, HELOISA A.; BARBOSA, ANDREY; SANTIAGO, ELISABETE I.Resumo IPEN-doc 32003 Caracterização do galato de lantânio dopado sintetizado quimicamente e sinterizado por centelha de plasma2025 - MUCCILLO, E. N. S.; REIS, S. L.; BERTON, M. A. C.; MUCCILLO, R.Resumo IPEN-doc 32001 Aditivos de sinterização do sistema SiO2-CaO-Al2O3-LiF em cerâmicas de nitreto de silício2025 - CORREA, W. T.; SILVA, R. O.; FERREIRA, T. S.; GUEDES-SILVA, C. C.Resumo IPEN-doc 32000 Síntese de MXeno em condições de baixo impacto ambiental2025 - LAZAR, D. R. R.; FERREIRA, T. S.; CARVALHO, F. M. S.; GUEDES-SILVA, C. C.Resumo IPEN-doc 31999 Desenvolvimento e caracterização de cerâmicas de nitreto de silício com wollastonita para aplicações biomédicas2025 - REIS, J. V. B.; CARVALHO, F. M. S.; RICCI LAZAR, D. R.; GUEDES-SILVA, C. C.