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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 ...
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 ...
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 ...
Análise de tensões residuais de juntas soldadas em engrenagens de moenda de cana em aço baixa liga
(Universidade Federal de São Carlos, 2015-08-07)
Residual stresses are those which remain in the part when all the external mechanical stress applied previously are removed. These residual stresses often appear in parts subjected to different thermal or mechanical ...
Análise do comportamento termomecânico e da evolução microestrutural durante a laminação de tiras a quente de aços C-Mn via DEFORM™ 3D
(Universidade Federal de São Carlos, 2015-02-26)
Improving the steel processing is a major focus of the metallurgical industry because
the need of materials and products with lower weight and more strength,
in addition to increasingly stringent specifications imposed ...
Caracterização termo-óptica quantitativa de fibras de poliéster e seus compósitos com polietileno
(Universidade Federal de São Carlos, 2015-03-08)
The work herein aims at investigating the thermo-optical behavior of polyethylene terephthalate and its composites with polyethylene, in real time, by means of an optical module recently developed in our research group. ...