Search
Now showing items 121-130 of 270
Desenvolvimento e caracterização de liga Fe-Mn-Si-Cr-Ni com efeito de memória de forma
(Universidade Federal de São Carlos, 2014-08-29)
The shape memory effect represents a physical property of materials with great potential applications in several sectors of Industry. In metallic materials, it’s a phenomenon associated to martensitic transformation and ...
Estudo da fissuração de concretos refratários durante o processo de cura auxiliado pela técnica de correlação de imagens digitais
(Universidade Federal de São Carlos, 2015-12-23)
The growing demand of the steel industry for cheaper and more efficient production
processes creates a necessity for new refractory materials. These requirements
are written in terms of more robust concretes, with a ...
Influência da microestrutura na resistência mecânica de ligas hipereutéticas Al-Si solidificadas direcionalmente
(Universidade Federal de São Carlos, 2017-01-18)
The present research work deals with directional solidification (DS) of Al-15wt.% and 18wt.% Si alloys and further characterization of the related microstructures. Emphasis is given on the eutectic growth being affected ...
Desenvolvimento de um ensaio mecânico não convencional para a análise da relaxação de tensões do politetrafluoretileno
(Universidade Federal de São Carlos, 2016-04-08)
The mechanical behavior of materials usually depends on room temperature
and loading rate. The identification of the time-dependent mechanical behavior
is a great difficulty for the industry in the application of new ...
Utilização de simulação termodinâmica para desenvolvimento de aços inoxidáveis modificados com boro conformados por spray : aplicações e limitações
(Universidade Federal de São Carlos, 2017-03-23)
Stainless steels are outstanding candidates for applications in the oil exploitation at the pre-salt layer in Brazil since they have an excellent combination of mechanical and corrosion properties. Nevertheless, they have ...
Eletrólito sólido β/β”-alumina para protótipo de bateria sódio-níquel
(Universidade Federal de São Carlos, 2014-10-07)
Itaipu Binational along with the Swiss company power generation Kraftwerke Oberhasli AG/KWO, are developing a battery of nickel-sodium salt (Na/NiCl2), which uses β/β"-Al2O3 ceramic as solid electrolyte, to apply on electric ...
Morfologia de ionômero E/MMA-Na+ proposta por técnicas termo-ópticas
(Universidade Federal de São Carlos, 2017-10-19)
The DSC low temperature endothermic peak shown by sodium neutralized poly(ethylene-random-methacrylic acid) (E/MAA) ionomers has been shown here to be the result of two different and dependent morphological transformations, ...
Analysis of crack propagation in the wedge splitting test via digital image correlation and finite element analyses
(Universidade Federal de São Carlos, 2019-02-19)
Castable refractories are applied in dangerous environments in which it is unpractical to avoid crack initiation. Therefore, their microstructure is usually complex in order to hinder crack propagation by toughening ...
Avaliação da resistência à fadiga e caracterização microestrutural de fios extrudados e forjados da liga AA7050 reciclada por conformação por spray
(Universidade Federal de São Carlos, 2016-12-19)
High strength 7XXX precipitation hardened aluminum alloys are widely
used in aircraft structural components. The machining process applied in the
fabrication of these components is a low efficiency ...
Estudo da incorporação de nanopartículas de óxido de zinco e pentóxido de nióbio em polietileno linear de baixa densidade
(Universidade Federal de São Carlos, 2019-03-29)
Linear low-density polyethylene (LLDPE) is one of the most widely used materials in greenhouse covering, due to its low cost and transparency to photosynthetically active radiation up to 80%. However, this polymer also ...