Search
Now showing items 151-160 of 186
Obtenção de fibras cerâmicas ultrafinas à base de Nb₂O₅ para a fotoconversão gasosa de dióxido de carbono
(Universidade Federal de São Carlos, 2021-05-21)
The increase in global warming rates is worrisome due to the harmful effects on different ecosystems. However, there is a need to reconcile these figures with the demand of industrial society for food, health, leisure, and ...
Influência dos contornos de grãos nas propriedades elétricas de hematita policristalina modificada com diferentes elementos químicos
(Universidade Federal de São Carlos, 2020-03-13)
The use of molecular hydrogen produced by photoelectrochemical cells is an alternative to fossil fuels, economically and environmentally. Hematite (α-Fe2O3) is a promising candidate to the realization of photoelectrochemical ...
Refill friction stir spot welding of AA6016-T4 aluminum alloy: study of new load-controlled process
(Universidade Federal de São Carlos, 2020-06-29)
Aiming at structural weight reduction and energy efficiency, aluminum alloys have been considered as potential materials for automobile manufacturing. The development of technologies able to join aluminum alloys more ...
On-line FTIR spectroscopy system for extrusion-based process analysis
(Universidade Federal de São Carlos, 2021-11-11)
Polymer processing is a fundamental key to achieve the desired properties to reach the needs of polymer applications. Thus, it is important to understand how the processing can contribute to material characteristics during ...
Atomização a gás da liga de alumínio AA2017: efeitos dos parâmetros de processo nas características físicas dos pós produzidos visando aplicação em manufatura aditiva
(Universidade Federal de São Carlos, 2022-07-15)
Gas atomization is the main method to produce metal powders for LASER powder bed fusion (L-PBF), which is an additive manufacturing (AM) technique. It produces metallic powders with suitable characteristics to be applied ...
Efeito do tamanho e distribuição de tamanho inicial das partículas da hematita, na cinética de sinterização assistida por micro-ondas
(Universidade Federal de São Carlos, 2021-11-26)
This thesis aimed to study the effect of the initial particle size and its
distribution of hematite on microwave-assisted sintering kinetics. Two synthesis
methods were used: sol-gel and seeded-mediated growth. By sol-gel ...
Solidificação, desenvolvimento microestrutural, propriedades mecânicas, elétricas e de corrosão de ligas Al-Si(-Ag)
(Universidade Federal de São Carlos, 2021-10-27)
In the last years, the development of new light and efficient systems in electric vehicles (EV) opens up new research opportunities. Besides that, the need for internal combustion engine components with optimized properties ...
Modelagem numérica do perfil térmico e do escoamento de material termoplástico por extrusão em um cabeçote customizado para manufatura aditiva
(Universidade Federal de São Carlos, 2024-04-10)
This work presents a procedure for modeling and numerical analysis of the flow of a thermoplastic fluid with pseudoplastic behavior applied to a custom miniature vertical head based on twin-screw extrusion for additive ...
Estudo do tratamento térmico de envelhecimento em patamar simples e duplo da liga UNS N09925
(Universidade Federal de São Carlos, 2023-05-29)
It is well known that several researches related to the development of renewable and alternative energy sources are currently in course. However, with the continuous increase on energy demand around the world, it is still ...
Síntese de nanopartículas de CuO e aplicações catalíticas
(Universidade Federal de São Carlos, 2024-03-28)
Global population growth, reaching 8 billion people in November 2022, will continue to impose significant pressures on industrial production, agriculture, urban mobility, and energy demand. Coupled with the depletion of ...