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Now showing items 31-40 of 127
Influência da incorporação de negro de fumo e carbonato de cálcio micro e nanoparticulado nas propriedades reológicas, colorimétricas e mecânicas de filmes de polietileno de baixa densidade
(Universidade Federal de São Carlos, 2021-06-30)
In this work, the influence of incorporation of Carbon Black (CB) and CaCO3, both with different particle sizes, on the rheological, colorimetric and mechanical properties of LDPE films were studied. Three different types ...
Estudo de Ligas Fe-Nb-B Nanocristalinas Eutéticas Ultrafinas e Laser Cladding de Pós Atomizados
(Universidade Federal de São Carlos, 2020-05-20)
Fe-Nb-B alloys have gained much attention in recent years because of the possibility to obtain different constituents in nanostructured composites, amorphous and ultrafine eutectics (scale of 100 nm to 1 μm) alloys depending ...
Evolução de fases durante a hidratação do cimento portland brasileiro por difração de raios x
(Universidade Federal de São Carlos, 2021-03-03)
The physicochemical properties of cementitious materials are determined by the mineralogy and hydration process of the cement. In 2018, the ABNT NBR 16697 standard was published, unifying eight standards related to Portland ...
Design, síntese e caracterização de ligas multicomponentes contendo Mg para armazenagem de hidrogênio
(Universidade Federal de São Carlos, 2022-02-14)
The use of hydrogen as an alternative fuel has been investigated due to its great potential to be used as an energy vector. One of the challenges for its wide application is to store it safely and efficiently. Therefore, ...
Recobrimentos de ligas Ti-Nb-Zr depositados por pulverização magneto-catódica sobre aço inoxidável AISI 316L para aplicações biomédicas
(Universidade Federal de São Carlos, 2022-11-30)
The work consists of the deposition of Ti-Nb-Zr ternary alloy coatings in the form of thin films on an AISI 316L stainless steel substrate for applications in the biomedical area, such as dental or orthopedic prosthesis. ...
Obtenção de quitosana reticulada por processamento termomecânico para aplicações biomédicas
(Universidade Federal de São Carlos, 2022-05-11)
The low processability of chitosan and the obtaining of materials with low structural stability constitute substantial limitations to the commercial use of chitosan, especially in biomedical applications. Furthermore, the ...
Desenvolvimento de eletrólitos nanocompósitos de nafion e nanocristais de celulose para uso em células eletrolíticas com membrana trocadora de prótons (PEMECs)
(Universidade Federal de São Carlos, 2022-04-20)
Proton exchange membrane water electrolysis (PEMWE) performs the
electrolysis of water to produce hydrogen, a source of clean and renewable
energy. The most used commercial electrolyte in PEMWE is the Nafion
membrane, ...
Elaboração e análise de indicadores bibliométricos de publicações na área de educação em engenharia de materiais
(Universidade Federal de São Carlos, 2021-11-08)
Engineering is directly related to the industrial and socioeconomic development of each country and region in which it operates, being a central area in its development. Indispensable to the present day, the engineering ...
Desenvolvimento, caracterização e desempenho de novos eletrodos para dispositivos eletromecânicos baseados em nanocompósitos elastoméricos condutores tratados por plasma
(Universidade Federal de São Carlos, 2022-06-28)
Ionomeric polymer-metal composites (IPMC) are devices generally composed of metallic electrodes and an ionomeric polymer membrane in a “sandwich-like” format, whose main property is the electromechanical actuation or sensing ...
Ligas multicomponentes do sistema Ti33Cr37V30-xNbx (X: 0, 5, 10 e 15) para armazenamento de hidrogênio
(Universidade Federal de São Carlos, 2021-11-30)
The use of metal hydrides is a competitive alternative to hydrogen storage in liquid or gaseous states. Metallic alloys based on the TiCrV system have attractive hydrogen storage characteristics compared with those of the ...