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Now showing items 71-80 of 264
Estudo dos efeitos do biodiesel e suas misturas com óleo diesel em materiais metálicos
(Universidade Federal de São Carlos, 2017-03-09)
The use of biodiesel in vehicles can significantly reduce dependence on fossil fuels and help to reduce environmental pollution. However, there are concerns about the compatibility of automotive materials in contact with ...
Microestrutura e propriedades mecânicas de vitrocerâmicos do sistema Li2O – CaO – SiO2
(Universidade Federal de São Carlos, 2013-03-12)
An interesting characteristic of the Li2O-CaO-SiO2 glass-forming system is the possibility of obtaining certain crystalline phases and morphologies that may lead to tough glass-ceramics. However, very few published works ...
Estudo da resistência à corrosão de ligas de alumínio com grãos ultrafinos obtidos por deformação plástica severa através do processo ECAP
(Universidade Federal de São Carlos, 2017-10-02)
The present work evaluated the effect of severe plastic deformation and ultrafine grains, obtained through the ECAP (equal-channel angular pressing) process, in the corrosion resistance of AA1050 aluminum alloy. The ...
Desenvolvimento de novas ligas quasicristalinas à base de alumínio
(Universidade Federal de São Carlos, 2018-03-21)
Quasicrystalline phases are known for presenting particular crystallographic characteristics that make them a separate group of solid materials. Most of these phases are Al-based and they form in compositions near complex ...
Blendas de PHBV e PCL para uso em dispositivos de osteossíntese
(Universidade Federal de São Carlos, 2010-12-15)
This study aimed to develop and characterize polymer blends using biodegradable and bioabsorbable polymers poly (hydroxybutyrate-co-valerate) PHBV with 12% valerate, and poly (ε-caprolactone) PCL, in order to make ...
Avaliação da resistência à corrosão e das propriedades mecânicas da junta soldada de aço inoxidável duplex
(Universidade Federal de São Carlos, 2015-12-16)
The corrosion resistance and mechanical properties of hardness and toughness of a welded joint multipass duplex stainless steel have been evaluated under the condition with post-weld heat treatment and as-welded. The ...
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 ...
Refratários avançados sinterizados com líquidos transientes
(Universidade Federal de São Carlos, 2017-03-09)
Sintering additives (AS) have great potential to be applied in refractory castables as they reduce the densification temperature of these products. Additionally, these components may induce the generation of a transient ...
Deformação plástica severa da liga Ti-13Nb-13Zr
(Universidade Federal de São Carlos, 2017-03-03)
Biomedical devices currently in use (prostheses, implants) have satisfactory performance in many cases. However, sometimes the body reacts to the device insertion and may lead to its rapid replacement. Some of these ...
Caracterização microestrutural e mecânica da liga AA2024 conformada por spray e processada termomecanicamente
(Universidade Federal de São Carlos, 2019-03-22)
This work aimed to evaluate the possibility of combining spray forming processing with mechanical processing techniques (for instance, extrusion, rotary forging, and equal-channel angular pressing (ECAP)) to be used as ...