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Now showing items 481-490 of 733
Durabilidade de polietileno em vinhaça quente e fresca em usina de açúcar e álcool
(Universidade Federal de São Carlos, 2013-12-10)
Geomembranes are polymeric sheets widely used in vinasse ponds to prevent contamination of soil. Long-term durability is expected, since failure can result in environmental impact. Smooth black commercial geomembranes and ...
Modificação química de poli(ácido láctico) com anidrido maleico por processamento reativo
(Universidade Federal de São Carlos, 2014-08-18)
The chemical modification of PLA with maleic anhydride by reactive processing and the extent of reaction and degradation reactions, were studied. Routes of grafting reaction of maleic anhydride in PLA were evaluated. Dicumyl ...
Efeitos da diminuição do tamanho médio de partículas da frita nas propriedades dos esmaltes cerâmicos visando aplicação na esmaltação digital
(Universidade Federal de São Carlos, 2017-08-04)
Nowadays Brazil is the second largest producer and consumer of ceramic tiles in the world. In the process of tile’s production, the decoration and glazing play a prominent role since they are responsible for technical and ...
Microestrutura, resistência mecânica e corrosão sob tensão em ligas de alumínio Al-0,3%Fe e Al-4%Cu processadas por extrusão em canal angular
(Universidade Federal de São Carlos, 2019-04-29)
Grain refinement is an important hardening mechanism in metallic alloys, notably when the grain size reaches the submicrometer scale. For this purpose, several techniques of Severe Plastic Deformation (SPD) have been ...
Modelagem computacional e análise das propriedades termodinâmicas do líquido super-resfriado do sistema Fe-Nb-B
(Universidade Federal de São Carlos, 2019-04-22)
Amorphous alloys of the Fe-Cr-Nb-B system are promising materials to supply the demand for new pipe coatings of higher wear resistance in the petrochemical industry due to its good abrasion and corrosion resistance properties. ...
Implementação do sistema de cristalização superficial induzida por laser em vidro de composição eutética
(Universidade Federal de São Carlos, 2019-03-01)
The radiation from lasers has been successfully applied to materials
processing such as drilling, cutting and welding, sintering of ceramic oxides,
surface heat treatment, directional solidification of single crystal ...
Produção e caracterização de ligas do sistema Al-Co-Fe- Cr e aplicações como recobrimentos para barreiras térmicas
(Universidade Federal de São Carlos, 2015-07-23)
Since the discovery of the quasicrystalline alloys by D. Schechtamn in 1984,
many research has been done in terms of coating application of these materials
and their intermetallic approximants due to their physical and ...
Scaffolds de óxido de titânio e biosilicato para aplicações médicas e odontológicas obtidos com o uso de partículas orgânicas
(Universidade Federal de São Carlos, 2015-01-30)
Scaffolds are an alternative to natural grafts to help bone regeneration in
large bone defects. Regardless of the material chosen for its manufacture,
scaffold should have a suitable dimensional microenvironment to ...
Otimização do processo de soldagem robotizada tandem GMAW do aço ASTM A572 G50
(Universidade Federal de São Carlos, 2018-10-31)
The tandem welding process employs double wire feed in a single torch,
providing increased deposition rate and consequent reduction in process times.
However, the process complexity increases because the correct combination ...
Sinterabilidade, desenvolvimento microestrutural e caracterização elétrica do BaCe0,9Y0,1O3-ẟ nanométrico obtido por mistura de óxidos
(Universidade Federal de São Carlos, 2018-11-28)
In this thesis, we investigated the microstructural development of BaCe0,9Y0,1O3-ẟ starting from aggregate-free submicrometric and nanometric powders. The differential of these powders is that synthesis occurred via ...