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Itens para a visualização no momento 11-20 of 46
Produção por fusão seletiva a laser de revestimentos resistentes ao desgaste utilizando a liga Fe68Cr8Mo4Nb4B16
(Universidade Federal de São Carlos, 2021-06-29)
Amorphous/crystalline Fe-based alloys are promising materials as protective coatings due to their high crystallization temperatures, high hardness and excellent resistance against corrosion and wear. The application of ...
Análise de falha de martelos oscilantes de desfibradores utilizados em usinas sucroalcooleiras
(Universidade Federal de São Carlos, 2021-07-30)
Sugarcane mills have demanded more control of their production line,
reduced loss of raw material, and a longer period before maintenance of their
equipment, aiming to increase their profitability. The main station of ...
Síntese de Mg2NiH4 para armazenagem de hidrogênio em compósito polimérico
(Universidade Federal de São Carlos, 2021-03-01)
In this work, powder production routes based on Mg2NiH4 are investigated, utilizing high-energy reactive milling; thermal treatment procedures, and hydrogen absorption/desorption cycles, which promote controlled decrepitation, ...
Estabilidade microestrutural da liga Cu-0,8Cr-0,07Zr após extrusão em canal angular em temperatura criogênica
(Universidade Federal de São Carlos, 2021-12-20)
Severe Plastic Deformation (SPD) are well established routes with regard to the
intense microstructural refining of metals and alloys up to the submicrometer (<
1 μm) and/or nanometer (< 100 nm) scales. Lowering the ...
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 ...
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 ...
Ligas multicomponentes do sistema Ti33Cr37V30-xNbx (X: 0, 5, 10 e 15) para armazenamento de hidrogênio
(Universidade Federal de São Carlos, 2021-11-30)
The use of metal hydrides is a competitive alternative to hydrogen storage in liquid or gaseous states. Metallic alloys based on the TiCrV system have attractive hydrogen storage characteristics compared with those of the ...
Comportamento de oxidação em temperaturas elevadas de ligas NiTiNb com efeito memória de forma
(Universidade Federal de São Carlos, 2021-09-10)
Shape memory alloys (SMA) of the Nickel-Titanium (NiTi) system are currently the most commercially important, due to their excellent mechanical properties, high shape recovery and biocompatibility. Such a unique set of ...
Design of high entropy alloys for hydrogen storage: study of the Mg-V-Al-Cr-Ni, Mg-Al-Ti-Mn-Nb and Ti-V-Nb-Cr systems
(Universidade Federal de São Carlos, 2021-05-21)
The advent of high entropy alloys (HEA) has brought new opportunities and challenges to metallurgy. Due to extensive compositional field of HEAs, the possibility of controlling properties in a composition-driven approach ...