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Aperfeiçoamento de um detector de espalhamento de luz laser em baixo ângulo (LALLS in-line) para acompanhamento em tempo real do processo de extrusão
(Universidade Federal de São Carlos, 2015-02-27)
The morphology of extruded multiphase polymer systems is usually
assessed through off-line characterization methods such as microscopy, which
require much time for sample preparation and analysis of the results. This ...
Produção e caracterização de ligas do sistema Al-Co-Fe- Cr e aplicações como recobrimentos para barreiras térmicas
(Universidade Federal de São Carlos, 2015-07-23)
Since the discovery of the quasicrystalline alloys by D. Schechtamn in 1984,
many research has been done in terms of coating application of these materials
and their intermetallic approximants due to their physical and ...
Identificação das variáveis que ocasionam a variação de tonalidade utilizando a técnica de decoração por cilindros de silicone gravados a laser
(Universidade Federal de São Carlos, 2015-11-30)
A major problem in the production of ceramic tiles for coating is the variation of
tonality. The determination of their origin within the entire production process and to
minimize its occurrence by the manufacturer is ...
Monitoramento em tempo real da cristalização quiescente e induzida por fluxo de polipropileno em microscópio óptico de luz polarizada
(Universidade Federal de São Carlos, 2015-08-07)
In the polymer forming processes, such as injection molding, extrusion of films / sheets and blowing, these materials are subject to shearing and elongation flows. Such conditions influence its final morphologies. When ...
Desvulcanização termomecânica contínua de borracha natural da banda de rodagem de pneus automotivos por meio do processo de extrusão em rosca dupla
(Universidade Federal de São Carlos, 2015-09-10)
The Natural rubber is a renewable source material widely used in the manufacture of automotive tire tread. The vulcanization results in a high thermodynamic stability and wide working range materials. However, after the ...
Efeitos das condições de queima e densidade aparente sobre a sobrequeima em porcelanatos
(Universidade Federal de São Carlos, 2015-08-05)
The phenomenon of overfiring manifests in porcelain tiles and other
products with high degree of vitrification, as a consequence of the expansion of
gases trapped in closed pores, in the final stages of sintering. When ...
Desenvolvimento de uma matriz de fenda instrumentada para o monitoramento reo-óptico do processo de extrusão
(Universidade Federal de São Carlos, 2015-03-13)
A novel slit-die flow cell is presented for the evaluation of extrusion thermo-mechanical history on the flow character of polymers. The rheo-optical concept is claimed once both flow-birefringence and rheological character ...
Calibração do modelo de Drucker-Prager/CAP para simulação numérica do processo de prensagem a frio de pós metálicos
(Universidade Federal de São Carlos, 2015-03-27)
An experimental procedure for the calibration of Drucker-Prager/Cap model, using
the digital image correlation technique, is presented. The elastic properties were
characterized by fitting stress vs. strain curves recorded ...
Comportamento em fadiga de hastes femorais para artroplastia de quadril com superfícies modificadas
(Universidade Federal de São Carlos, 2015-07-20)
Nowadays, titanium and its alloys are the materials of choice for the
production of implants for hip arthroplasty, a surgery that aims for the
improvement of the quality of life of patients that bear articular pathologies ...
Desenvolvimento de blendas de TPS, PCL E PLA e seus nanocompósitos com nanowhiskers de celulose de gravatá
(Universidade Federal de São Carlos, 2015-12-15)
The objective of this project was the study of polymer blends of thermoplastic starch (TPS), poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) and the extraction of celulose nanowhisker from gravatá (Bromelia balansae) ...