Search
Now showing items 11-20 of 41
Fabricação de amostras maciças da liga Fe-Co-B-Si-Nb com estrutura amorfa pela rota de atomização e extrusão a quente
(Universidade Federal de São Carlos, 2018-08-23)
Metallic glasses alloys are a relatively new class of materials characterized by the absence of structural long-range order. During heating, these alloys exhibit a glass transition at a temperature (Tg) before reaching the ...
Desenvolvimento de Nanoblendas PLA/EVOH biodegradáveis com características de barreira a gases e vapores
(Universidade Federal de São Carlos, 2018-07-20)
Poly (lactic acid) (PLA) is a non-toxic, transparent and biodegradable aliphatic polyester, produced from renewable raw materials. This polymer meets several requirements for packaging applications, but is fragile and has ...
Avaliação de fibras de gravatá, macaúba e curauá para aplicação em compósitos de polipropileno obtidos por mistura termocinética
(Universidade Federal de São Carlos, 2018-06-18)
The objective of this project was the study of polypropylene and natural fibers high filled composite panels, with and without coupling agents, and the extraction and study of three species of natural fibers as potential ...
Concretos refratários fosfatados para refino de petróleo: caracterização, propriedades e adequação ao uso
(Universidade Federal de São Carlos, 2018-09-26)
The increasing demand for petroleum experienced in the last decades has pushed the barrel price to a level never seen before, stimulating a race for rising production volumes and taking us to even deeper waters. On a similar ...
Estudo da viabilidade técnica do reaproveitamento de altos teores de fibras de poli(para-aramida) como reforço mecânico em poliamida 66
(Universidade Federal de São Carlos, 2018-10-26)
Responsible for an annual demand higher than 70 millions of tons, the poly(para- aramide) fibers are being widely used in the safety, automobilist, aeronautic, and petroleum industries, due to their attractive mechanical, ...
Graftização de polipropileno-G-anidrido maleico sobre microesferas ocas de vidro por extrusão reativa
(Universidade Federal de São Carlos, 2018-08-24)
Using a maleic grafted polypropylene copolymer as a compatibilizing agent on a composite with hollow glass microspheres HGM is one way to reduce the mechanical properties decrement associated to the round, hollow, hydrophilic ...
Modificação química de poli(ácido láctico) com monômeros vinílicos, por processamento reativo, visando ajuste molecular e sua utilização em blendas poliméricas
(Universidade Federal de São Carlos, 2018-09-24)
Poly(lactic acid) (PLA) was modified with maleic anhydride (MA) or glycidyl methacrylate (GMA) in the presence of peroxide to assess the physical and chemical changes of the polymer during the reactive processing. Chemical ...
Resídulo de bauxita: mapeamento da produção científica e tecnológica de sua aplicação em materiais cimentícios
(Universidade Federal de São Carlos, 2018-07-31)
Bauxite residue (BR) is the major waste generated during alumina extraction from bauxite. The global average for the production of BR is estimated between 1 and 1.5 ton per ton of alumina. The most important process worldwide ...
Desenvolvimento de compósitos poliméricos flexíveis com alta constante dielétrica obtidos a partir de polímeros baseados em pvdf e da perovskita ncbcto
(Universidade Federal de São Carlos, 2018-12-19)
The objective of this thesis was to produce polymer/perovskite based composites to be used as supercapacitors; the composites were made by incorporating an specified type of perovskite (Na1/3Ca1/3Bi1/3Cu3Ti4O12, NCBCTO) ...
Propriedades mecânicas e correlação dos parâmetros de FSW e DS-FSW em alta velocidade na liga AA2050-T84, para a indústria aeronáutica
(Universidade Federal de São Carlos, 2018-11-19)
Friction Stir Welding (FSW) and DS-FSW (double pass FSW) processes were employed in the aluminum AA 2050 T-84 plate joints aiming to make possible to increase the welding speed above 5 mm / s, to obtain welds with optimized ...