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Now showing items 21-30 of 81
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 ...
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 ...
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 ...
Compósitos de nanofibrilas de celulose de bagaço de cana-de-açúcar e nanopartículas lamelares: caracterização de dispersões, filmes e filamentos
(Universidade Federal de São Carlos, 2023-02-27)
Cellulosic materials have great importance for industry and scientific research due to their availability, thermomechanical properties, biocompatible aspects and advantages for circular economy strategies and prioritization ...
Estudo do processo de obtenção de filmes espessos autossustentados porosos por meio de sinterização seletiva a laser
(Universidade Federal de São Carlos, 2023-07-31)
BaTiO3 is an ABO3-type perovskite with tetragonal structure at room temperature and is also known for its excellent dielectric, ferroelectric and piezoelectric properties and is used in dielectric capacitors, sensors, ...
Panorama das atividades de extensão do departamento de engenharia de materiais da UFSCar e oportunidades para sua curricularização na graduação
(Universidade Federal de São Carlos, 2023-01-23)
Guidelines for service-learning’s curricular use in graduation ensures 10% of the
total student workload of undergraduate courses to service-learning activity. This
policy has potential to offer benefits in mutual ...
Estudo do comportamento eletromecânico de músculos artificiais baseados em compósitos de polímero ionomérico e metal por meio da análise de vídeo
(Universidade Federal de São Carlos, 2020-04-13)
Ionomeric polymer-metal composites (IPMCs) are smart materials, which have a metal/polymer/metal sandwich-like structure and are capable to deform in response to electrical stimuli and vice versa. In addition, they have ...
Estabilidade e habilidade de formação de vidros óxidos
(Universidade Federal de São Carlos, 2020-03-02)
The glass-forming ability (GFA) is a measure of the easiness of vitrification of a liquid during cooling from the liquidus temperature. The GFA is inversely proportional to the critical cooling rate (Rc), whose determination ...