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Efeitos da adição de B, Y2O3 e/ou WS2 na microestrutura e no comportamento tribológico do aço inoxidável austenítico produzido por SPS
(2021-08-31)
Austenitic stainless steels are alternatives to meet the demand for advanced materials for applications that aim to reduce energy consumption and deterioration of components due to tribological phenomena such as friction ...
Molecular dynamics simulations of the isotopic effect on nanoscale friction
(2021-07-08)
Computer simulations are becoming increasingly useful for studying friction, enabling the application of controlled conditions, uncoupling mechanisms, and set-ups that are not usually achievable in physical experiments, ...
Nitretação a plasma de aço inoxidável austenítico sinterizado AISI 316L com adição de ítria
(2023-03-29)
In this work, plasma nitriding of sintered 316L austenitic stainless steel was performed, with and without addition of yttria. The hollow cathode type configuration was used in the nitriding reactor. Initially varying the ...
Efeito do teor de ferro na síntese de vitrocerâmicos de basalto
(2020-11-03)
Basalts, which cover about 70% of the Earth's surface, are igneous rocks originated from the cooling and solidification of magma on the Earth's surface. When the magma is cooled rapidly, it forms a glass. When cooled slowly, ...
Interações físico-químicas em nanotribologia: elucidação de mecanismos e controle do atrito em escala nanométrica
(2023-08-04)
The study of friction, wear, lubrication, and adhesion at the nanoscale forms nanotribology, an interdisciplinary area dedicated to understanding and promoting advances in the most diverse applications in which these ...
Efeitos relativísticos, equação de estado e transições de fase induzidas por altas pressões no aureto de césio
(2023-09-13)
Cesium auride (CsAu) is an intriguing compound formed by two metals that exhibits properties of both an ionic and a semiconductor salt. In this study, we employ computer simulations to explore the influence of relativistic ...
Compósitos baseados em PLA e ABS para impressão 3D de simuladores antropomórficos
(2023-09-15)
Additive manufacturing has been standing out for some years in both scientific and industrial fields. One of the 3D printing methods by material extrusion that stands out is the fused filament fabrication technique (FFF). ...
Pressure-induced second-order phase transition in fluorine
(2023-09-20)
The relative stability between the crystal structure of (alfa)-F2, space group C2/c, and a hypothesized highpressure phase, space group Cmce, was explored using Density Functional Theory at the PBE0+D3(ABC)/TZVP level of ...
Desenvolvimento de uma membrana verde à base de poli(vinil álcool) para a remoção de diclofenaco de sódio de matrizes aquosas
(2023-10-18)
Membrane separation processes are efficient to reduce water pollution by emerging contaminants, such as pharmaceuticals. In Brazil, as well as worldwide, the production of membranes still faces challenges concerning the ...