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Efeito do inoculante Al-Nb-B na microestrutura e propriedades mecânicas da liga AA2017 fabricada por fusão em leito de pó a laser
(Universidade Federal de São Carlos, 2023-01-24)
The blending of finer powders of Ti, Zr, Ta, Sc, and Nb compounds as inoculants has been a promising strategy to modify precipitation-hardened aluminum alloys for laser-based powder bed fusion process (L-PBF), promoting a ...
Reaproveitamento de resíduos da agroindústria da laranja para a produção de compostos biodegradáveis em matriz de PBS
(Universidade Federal de São Carlos, 2021-09-24)
The employment of biodegradable polymers is a partial solution to the problem of environmental plastic pollution, since conventional polymers are resistant to many environmental influences and it may take centuries for ...
Sistemas de estabilização em polipropileno submetidos à radiação UV-C
(Universidade Federal de São Carlos, 2023-04-28)
UV-C radiation (200 - 280 nm) is a range of the electromagnetic spectrum with increasing and satisfactory studies as a method of disinfection against microorganisms, however, it is little studied in terms of degradation ...
Uso de bentonita como aditivo impermeabilizante em argamassa polimérica cimentícia
(Universidade Federal de São Carlos, 2024-01-19)
Waterproofing is one of the most crucial stages in civil construction. Recent studies have reported significant improvements in the waterproofing behavior of mortars containing bentonite. However, the addition of high ...
Desenvolvimento de sensores colorimétricos baseados em compostos amido/cera de abelha e antocianinas por casting contínuo para embalagens inteligentes
(Universidade Federal de São Carlos, 2023-12-19)
Intelligent packaging are systems capable of communicating the conditions of the packed food and different approaches can be used to produce such packaging, for instance, the production of quality indicators based on ...
Microstructure, corrosion, and wear resistance of a boron-modified duplex stainless steel produced by laser powder bed fusion
(Universidade Federal de São Carlos, 2024-03-18)
A duplex stainless steels (DSS) containing 0.3 and 0.6 wt.% of boron were produced by laser powder bed fusion (L-PBD) with parameters based on Box-Behnken design. The microstructure was evaluated by XRD, OM, SEM, EBSD, ...
Design de ligas multicomponentes do sistema Ti-V-Nb-M (M = Cr, Co E Ni) para armazenagem de hidrogênio
(Universidade Federal de São Carlos, 2023-05-15)
Body Centered Cubic (BCC) multicomponent alloys have gained attention in the research of materials for H2 storage. These alloys have the potential to optimize H2 storage properties via compositional control. However, the ...
Influência da nióbia no óxido de alumínio eletrofundido para aplicações abrasivas
(Universidade Federal de São Carlos, 2021-07-29)
Abrasives are materials that have as main characteristics their cutting and
grinding power. In its most common crystalline form, aluminum oxide, due to its
high melting point, high hardness and mechanical resistance, ...
Obtenção de filtros de celulose para aerossóis a partir de diferentes processos
(Universidade Federal de São Carlos, 2022-08-25)
Given the crisis due to the SARS-CoV-2 virus pandemic and the high demand for personal protective equipment (PPE), this master's project aimed to develop a process for manufacturing biodegradable filters from a renewable ...
Detector óptico NIR in-line para monitoramento da degradação termomecânica do polipropileno durante a extrusão
(Universidade Federal de São Carlos, 2022-05-02)
The present research aimed to develop an in-line NIR (near infrared) optical detector to monitor polypropylene (PP) thermomechanical degradation during extrusion. The optical detector monitors, in real time, the absorbance ...