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Now showing items 241-250 of 273
Monitoramento em tempo real da orientação molecular de poliestireno e em misturas com polimetilmetacrilato durante a extrusão
(Universidade Federal de São Carlos, 2011-03-02)
In this work it was studied the flow orientation of pure polystyrene and its diluted mixtures with polymethylmethacrylate as second phase during extrusion process by in-line monitoring of the polarized transmitted light ...
Análise da microestrutura, parâmetros térmicos e de propriedades mecânicas na solidificação direcional de ligas Al-Mg-Fe
(Universidade Federal de São Carlos, 2017-01-18)
Al-Mg-Fe alloys are appointed as favorable ones in respect of the costs involved and all the required properties for successful vessel service. However, experimental inter-relations of solidification thermal parameters, ...
Estudo da viabilidade de formação de nitreto de boro em aços inoxidáveis ferríticos
(Universidade Federal de São Carlos, 2020-03-02)
Since the 90s, the petroleum industry has been conducting research on alloys that are wear and corrosion resistant once several equipment parts used in the oil exploitation, extraction and production, such as pipes, joints, ...
Estudo da resistência à fadiga da liga Ti-6Al-4V com superfície modificada por tratamento químico
(Universidade Federal de São Carlos, 2016-03-22)
Chemical surface treatments (CST) in cementless and endosseous
implants are used to increase the implant-bone contact area, reducing the period
of osseointegration and favouring bonding ability between implants and ...
Otimização do processo de soldagem por fricção por ponto (FSpW) de soldas de materiais similares e dissimilares de ligas leves
(Universidade Federal de São Carlos, 2014-08-07)
Currently there is a lot of pressure in the aeronautical and automobilistic transport section in order to reduce the fuel consumption and consequently cost and gas emissions. This measure has increased in the last years ...
Filmes de nanocristais e nanofibrilas de celulose de eucalipto e abacaxi (curauá) por continous casting
(Universidade Federal de São Carlos, 2017-02-24)
New materials from cellulose have been developed, such as cellulose
nanocrystals (CNC) and cellulose nanofibrils (CNF). Different morphologies of
the cellulose can lead to the formation of films with different ...
Caracterização do efeito da rugosidade em filmes finos de TiNb sobre o aço 316L para aplicação na biomedicina
(Universidade Federal de São Carlos, 2017-03-10)
With the increase in life expectancy, there has been a raise in the use of prostheses due to the need to replace parts of the human body. To avoid tissue rejection, metal alloys from implants should be biocompatible. The ...
Soldagem por fricção e mistura da liga de alumínio AA2198-T851 em chapas de diferentes espessuras
(Universidade Federal de São Carlos, 2012-12-11)
Friction Stir Welding (FSW) process, conceived in 1991, has been the target of research in the last decades due to the excellent properties presented by its welded joints, favored by the fact of occurrence in the solid ...
Avaliação do comportamento reológico, térmico e mecânico de misturas de PBAT com elevados teores de lignina
(Universidade Federal de São Carlos, 2019-12-17)
The massive accumulation of plastic waste and its environmental impact is in great evidence today. Each year, more than 8 million tons end up in the oceans, so research indicates that there will be more plastics than fishs ...
Determinação das propriedades mecânicas da liga A356 conformada por spray para diferentes teores de ferro e condições de processamento
(Universidade Federal de São Carlos, 2008-04-22)
The aims of this work were the microstructural and tensile properties characterization of the hypoeutectic spray formed Al-Si 356, with and without contamination for iron, spray formed, extruded and heat treatment. The ...