Search Results - "Zen Vasconcellos, Marcos Antonio"

Amorphization of Graphite Flakes in Gray Cast Iron Under Tribological Load by Hinrichs, Ruth, Vasconcellos, Marcos Antonio Zen, Österle, Werner, Prietzel, Claudia

“…A gray cast iron disc, which had been submitted to a heavy duty automotive brake test, was examined with energy filtered transmission electron microscopy. A…”
Get full text

Effects of gas mixture on active screen plasma nitriding and post-oxidation of a 4140 steel by Fonseca Oliveira, Leonardo, Velho de Castro, Victor, Zen Vasconcellos, Marcos Antonio, Klein das Neves, Julio Cesar, de Fraga Malfatti, Celia, da Silva Rocha, Alexandre

“…Plasma nitriding, followed by post-oxidation, is a surface treatment used to enhance the properties of steel parts. The primary objective of such treatments is…”
Get full text

Low-temperature sol–gel synthesis of magnetite superparamagnetic nanoparticles: Influence of heat treatment and citrate–nitrate equivalence ratio by Polla, Mariana Borges, Nicolini, João Lucas, Venturini, Janio, da Cas Viegas, Alexandre, Zen Vasconcellos, Marcos Antonio, Montedo, Oscar Rubem Klegues, Arcaro, Sabrina

“…Spinel ferrite nanoparticles are a remarkably versatile group of metal oxides with unique magnetic and electronic properties, making them promising candidates…”
Get full text

The influence of nitrogen to hydrogen ratio and temperature on thickness and phase composition in plasma nitrided Ti-6Al-4V by Lima, Saulo Cordeiro, Hinrichs, Ruth, Vasconcellos, Marcos Antonio Zen

“…ABSTRACT Ti-6Al-4V was plasma nitrided using several N2/H2 ratios and substrate temperatures. In order to investigate the combined influence of these…”
Get full text

The Effect of Argon and Nitrogen Ion Implantation on Nickel-Titanium Rotary Instruments by Wolle, Carlos Frederico Brilhante, MSc, Vasconcellos, Marcos Antônio Zen, PhD, Hinrichs, Ruth, PhD, Becker, Alex Niederauer, MSc, Barletta, Fernando Branco, DMD

“…Abstract Introduction This qualitative study investigated the effect of N2+ and Ar+ ion implantation on morphologic alterations and fatigue resistance in Pro…”
Get full text

Magnetic Mesoporous Silica for Targeted Drug Delivery of Chloroquine: Synthesis, Characterization, and In Vitro Evaluation by de Andrade, Rafaela, Schmidt, Rita de Cássia Dos Reis, Gomes, Leonardo Santos, Colina-Vegas, Legna, Hinrichs, Ruth, Vasconcellos, Marcos Antônio Zen, Costa, Tania Maria Haas, Deon, Monique, Villarreal, Wilmer, Benvenutti, Edilson Valmir

“…Malaria is a dangerous tropical disease, with high morbidity in developing countries. The responsible parasite has developed resistance to the existing drugs;…”
Get full text

Hardness evaluation, stoichiometry and grain size of titanium nitride films obtained with plasma nitriding on Ti-6Al-4V samples by Vasconcellos, Marcos Antonio Zen, Lima, Saulo Cordeiro, Hinrichs, Ruth

“…Titanium nitride films were formed on the surface of Ti-6Al-4V discs by plasma nitriding (glow discharge) in different N2:H2 atmospheres at several substrate…”
Get full text

One-step CoFe2O4 gel combustion synthesis using tris(hydroxymethyl)aminomethane (TRIS) as alternative fuel: Control of oxidiser-to-fuel molar ratio for tuning its structural, magnetic, and optical properties by Lucas Nicolini, João, Andrés Chavarriaga, Edgar, Lopera, Alex, Bender Wermuth, Tiago, García, Claudia, Alarcón, Javier, Cas Viegas, Alexandre, Antonio Zen Vasconcellos, Marcos, Rubem Klegues Montedo, Oscar, Pérez Bergmann, Carlos, Arcaro, Sabrina

“…•Combustion synthesis obtaining ferrites in lower temperature.•Tuning CoFe2O4 modifying synthesis parameters.•TRIS can be used as an alternative fuel.•Fuel and…”
Get full text

Morphological alterations of rotary nickel-titanium protaper? instruments analyzed by SEM: effect of nitrogen ion implantation by Niederauer Becker, Alex, Pandonor Motcy de Oliveira, Elias, Hinrichs, Ruth, Antônio Zen Vasconcellos, Marcos, Frederico Brilhante Wolle, Carlos

“…Abstract Abstract Purpose:This study evaluated the morphological alterations that occur in rotary nickel-titanium instruments during nitrogen-ion implantation…”
Get full text

Morphological alterations of rotary nickel-titanium protaper registered instruments analyzed by SEM: effect of nitrogen ion implantation by Niederauer Becker, Alex, Pandonor Motcy de Oliveira, Elias, Hinrichs, Ruth, Antonio Zen Vasconcellos, Marcos, Frederico Brilhante Wolle, Carlos

“…Abstract Abstract Purpose:This study evaluated the morphological alterations that occur in rotary nickel-titanium instruments during nitrogen-ion implantation…”
Get full text

Morphological alterations of rotary nickel-titanium protaper® instruments analyzed by SEM: effect of nitrogen ion implantation by Becker, Alex Niederauer, Oliveira, Elias Pandonor Motcy de, Hinrichs, Ruth, Vasconcellos, Marcos Antônio Zen, Wolle, Carlos Frederico Brilhante

Get full text