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Now showing items 51-60 of 130
Conformação viscoplástica por rolos a frio e caracterização de substratos de alumina
(Universidade Federal de São Carlos, 2008-03-20)
Alumina ceramic substrates were conformed by viscoplastic conformation by cold roll pressing in a range of thickness between 100 and 200 µm, which one presents a great technology interesting for eletro-eletronic applications. ...
Caracterização de sistemas varistores a base de SnO2-MnO2.
(Universidade Federal de São Carlos, 2002-08-02)
This work focussed on the effect of addition of Nb2O5 on the electrical and microestructural properties of SnO2-MnO2 based ceramics. It was also studied the effect of heat-treatments in a oxygen-rich atmosphere in these ...
Desenvolvimento e caracterização de filmes tubulares de nanocompósitos de PEAD/EVA/argila organofílica
(Universidade Federal de São Carlos, 2008-03-10)
In this work, the use of ethylene-vinyl acetate copolymer (EVA) in substitution to compatibility agents normally employed in the production of high density polyethylene (HDPE) nanocomposites (such as polyethylene grafted ...
Mecanismos de controle da hidratação da magnésia visando sua utilização em concretos refratários
(Universidade Federal de São Carlos, 2009-06-30)
The increasing demand in the last years enhanced significantly the steel industry production As a consequence, most of the aspects regarding its production had to be reviewed aiming an optimum output. Concerning this goal, ...
Uso de LALLS in-line na extrusão de sistemas poliméricos bifásicos
(Universidade Federal de São Carlos, 2007-07-30)
In-line analysis equipments play an important hole in the study of polymer blends extrusion for supplying dynamic information concerning to the morphology of the dispersed phases, such as aspect ratio and size distribution ...
Influência da incorporação de aditivos nas propriedades do Poli (Hidroxibutirato-co-hidroxivalerato) - PHBV
(Universidade Federal de São Carlos, 2008-08-05)
The concept of environmentally correct products has been exhaustively discussed and, today, the use of biodegradable polymers appears as a feasible alternative for the problem of inadequate disposal of plastic waste products. ...
Situação atual e perspectivas de utilização de materiais no interior de aeronaves executivas
(Universidade Federal de São Carlos, 2009-08-04)
This study focuses on analyzing the current situation and perspectives of materials selection and utilization, like composites, decorative laminates and films, and others, in business aircraft, particularly in furnishings ...
Síntese e caracterização de nanofitas de óxido de estanho.
(Universidade Federal de São Carlos, 2004-10-08)
Tin oxide nanoribbons were synthesized by a carbothermal method, which is based on evaporation-condensation reactions. The source material was composed of commercial tin dioxide (SnO2) powders mixed with carbon black. This ...
Resistência ao desgaste abrasivo da liga Fe66B30Nb4 processada por conformação por spray
(Universidade Federal de São Carlos, 2009-12-17)
Aiming at the improvement of the wear resistance of a glass former composition, the Fe66B30Nb4, the alloy was modified with the addition of Ti, resulting in the theoretical compositions: Fe63B29Nb4Ti4 (SF1) and Fe65B30Nb4Ti1 ...
Monitoramento in-line da formação de nanocompósitos PP/MMT via intercalação no estado fundido
(Universidade Federal de São Carlos, 2008-08-04)
The aim of this work is to monitor in-line, using an optical detector fitted at the extruder die exit, the formation of PP/MMT nanocomposites during polymer melt compounding. The intensity of the detector´s signal is ...