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Expansão térmica de redes aleatórias de carbono
(2017-12-06)
In this work, a simulation routine of carbon random networks, with variable hybridization, oriented to calculate the coeÿcient of thermal expansion, is presented. The method uses an algorithm for the generation of carbon ...
Desenvolvimento e caracterização de um sensor magnetoelástico de deformação
(2018-04-28)
Amorphous metals have been shown to have magnetomechanical properties which are superior to those of any other magnetic materials. This has allowed their usage in a growing number of sensing purposes. The capacity of ...
Contribuições do fenômeno de atrito no sistema ferro puro nitretado e pós-oxidado
(2017)
Control and reduction of friction can help in the elaboration of strategies of energy efficiency and in the reduction of carbon dioxide (CO2) emission. Although there are well established phenomenological laws for friction, ...
Processamento de coloidal de α-Al₂O₃ e a seletividade superficial na adsorção específica de taninos.
(2018-03-22)
Surfaces interactions dominate the properties of colloidal particles suspension. The balance between surface, solvent, and active species in solution determines the properties related to the solid-liquid interface interactions ...
Filmes de PAH/PAA com nanopartículas metálicas para a desinfecção de efluentes industriais
(2018-03-28)
The supply and access to drinking water is one of the great challenges of this century. In this perspective, the rapid advancement of Nanotechnology has contributed significantly to the development and production of ...
Desenvolvimento de reator anaeróbico de leito fluidizado associado a membranas de microfiltração
(2014-05-23)
The requirements to achieve what is demanded by the environmental laws make important the use of areas for sanitary landfills. The adequate disposal of waste associated with the current legislation also demands larger ...
Aperfeiçoamento da adesão de filmes finos de carbono amorfo hidrogenado através do entendimento físico-químico de intercamadas de silício
(2018-04-19)
The diamond-like carbon (DLC) thin films family, in particular hydrogenated amorphous carbon films (a-C:H) have interesting properties for academic and technological purposes. High wear and ultra-low friction can be found ...
Preparação, caracterização e aplicação de filmes finos nanoestruturados de PAH/PAA/TiO2 na fotoxidação de ibuprofeno
(2018-08-22)
Ibuprofen is an anti-inflammatory with an annual production of more than 15 thousand tons, whose concentration in aquatic ecosystems reaches the order of tens of μg L-1. The degradation of this emerging pollutant and other ...
Conformação de molas cerâmicas por moldagem por injeção em baixa pressão
(2014-05-15)
In this work the low-pressure injection molding (LPIM) of submicrometer-sized ceramic powders was studied aiming to produce ceramic springs. The work comprised the production of molds and laboratory equipment for injection ...
Caracterização da integridade de superfícies usinadas para produção de moldes e matrizes
(2014-05-14)
This work includes the conventional way of die and mold production. Process such as milling, EDM and sanding are discussed. These three processes of die and mold making were applied to the AISI H13 material, that is wide ...