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Diferentes dopagens e intercamadas contendo silício: otimização da adesão de revestimentos de a-C:H sobre aço
(2018-10-31)
Diamond-like carbon (DLC) coatings combine high wear resistance and low friction coefficient. Due to these properties, DLC can be applied on metal parts to facilitate the conformation process in bending tools and also for ...
Efeito da adição de boro na microestrutura, dureza, resistência à oxidação e ao desgaste do aço inoxidável austenítico 316L sinterizado.
(2018-05-23)
This work analyses boron additions to AISI 316L austenitic stainless steels, as a sintering additive in the powder metallurgy process. The effect of boron addition was investigated in terms of densification, microstructure, ...
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 ...
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 ...
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 ...
Obtenção de micro/nanofibras poliméricas por fiação por sopro : parâmetros e aplicação no controle de pragas agrícolas
(2018-10-01)
This work presents the production of EVA micro/nanofibers using the solution blow spinning method and its possibility of application in agriculture, in pest control, through the incorporation of synthetic sex pheromones. ...
Desenvolvimento de uma formulação elastomérica de EPDM para aplicação em temperaturas elevadas.
(2018-04-19)
The objective of this work was to obtain an EPDM elastomeric formulation for application at high temperatures. The influence of characteristics such as the ethene, propene, and diene content and Mooney viscosity, the use ...