Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Marcos Massi"'
Autor:
Adriano de Oliveira, Argemiro S. da Silva Sobrinho, Douglas M. G. Leite, Jonas J. Neto, Rodolfo L. P. Gonçalves, Marcos Massi
Publikováno v:
REM: International Engineering Journal, Vol 77, Iss 4 (2024)
Abstract A Hollow Cathode Plasma Enhanced Chemical Vapor Deposition (HC-PECVD) reactor was used to deposit silver doped Diamond-Like Carbon (Ag-DLC) films on Ti6Al4V alloy employing two methodologies: i) producing a silicon interlayer, using tetramet
Externí odkaz:
https://doaj.org/article/9c82d32bdb1e4014a4af32c668e2b948
Autor:
Caique Movio Pereira de Souza, José Ricardo Cabau Cunali Junior, Marcio Rodrigues da Silva, Vinicius Torres dos Santos, Flavia Gonçalves Lobo, Givanildo Alves dos Santos, Gisele Fabiane Costa Almeida, Antonio Augusto Couto, Marcos Massi
Publikováno v:
Metals, Vol 14, Iss 11, p 1279 (2024)
This study evaluated mixing methods for producing graphene oxide-reinforced copper matrix composites aiming for a better dispersion of graphene oxide in the composite, using powder metallurgy techniques. The compacted specimens were prepared by four
Externí odkaz:
https://doaj.org/article/e7ec870af30542d396109b57c2c7a381
Development and performance of graphene oxide reinforced LDPE nanocomposite polymers for 3D printing
Autor:
Bryan M. M. Silva, Caroline C. Tegon, Marcelo M. Soares, Rodolfo Luiz Prazeres Gonçalves, Andressa A. Oliveira, Antonio Augusto Couto, Marcos Massi
Publikováno v:
REM: International Engineering Journal, Vol 77, Iss 2 (2024)
Abstract This study evaluated the mechanical properties and the chemical and thermal characteristics of low-density polyethylene (LDPE) nanocomposites reinforced with graphene oxide for manufacturing via 3D printing. LDPE nanocomposites with differen
Externí odkaz:
https://doaj.org/article/c259b562a4404ed095abee195746204d
Autor:
Armstrong Godoy-Junior, André Pereira, Barbara Damasceno, Isabela Horta, Marcilene Gomes, Douglas Leite, Walter Miyakawa, Maurício Baldan, Marcos Massi, Rodrigo Pessoa, Argemiro da Silva Sobrinho
Publikováno v:
Plasma, Vol 6, Iss 2, Pp 362-378 (2023)
In this study, we report the use of a radiofrequency plasma-assisted chemical vapor deposition (RF-CVD) system with a hollow cathode geometry to hydrogenate anatase TiO2 thin films. The goal was to create black TiO2 films with improved light absorpti
Externí odkaz:
https://doaj.org/article/5c250ce45f02440eab1a1abccb0d2025
Autor:
Francisco C. Monção, Felipe R. Caliari, Filipe E. Freitas, Antônio A. Couto, Arnaldo Augusto, Carlos R. C. Lima, Marcos Massi
Publikováno v:
Metals, Vol 14, Iss 5, p 532 (2024)
Materials with enhanced wear resistance are constantly in high demand. Nickel-based self-fluxing materials deposited by atmospheric plasma spraying (APS) have feasible wear resistance performance. This study aimed to evaluate the results of a nickel-
Externí odkaz:
https://doaj.org/article/43b807a0cbed462fbfd988c81da27dd0
Autor:
Viviane Maria Gonçalves de Figueiredo, Alecsandro de Moura Silva, Marcos Massi, Argemiro Soares da Silva Sobrinho, José Renato Cavalcanti de Queiroz, João Paulo Barros Machado, Renata Falchete do Prado, Lafayette Nogueira Junior
Publikováno v:
Journal of Dental Research, Dental Clinics, Dental Prospects, Vol 16, Iss 3, Pp 170-178 (2022)
Background. New surface treatments have been proposed to expand the clinical indications of zirconia prostheses. This study aimed to evaluate the effect of silica and fluorine nanofilms on zirconia ceramic on the resin cement bond strength. Methods.
Externí odkaz:
https://doaj.org/article/cd0c79eea30346339c980b3940dad72b
Autor:
Gisele F. C. Almeida, Alexandra A. Arbex, Hamon V. S. Oliveira, Nilton I. Domingues, Jan Vatavuk, Danieli A.P. Reis, Marcos Massi, Antônio A. Couto
Publikováno v:
Materials Research, Vol 26, Iss suppl 1 (2023)
The formation of a stable and adherent oxide layer on the Ti-6Al-4V alloy can improve the mechanical and corrosion resistance of this material. This work studied the creep behavior of Ti-6Al-4V alloy after two different thermal oxidation conditions:
Externí odkaz:
https://doaj.org/article/93d1fad5cb3e438aa5893a95512aa3bc
Autor:
Denison A. Moraes, Gisele F. C. Almeida, Antonio A. Couto, Marcos Massi, Felipe R. Caliari, Carlos R. C. Lima
Publikováno v:
Metals, Vol 13, Iss 4, p 763 (2023)
This article compares the creep testing behavior of AISI 4340 high-strength steel in the as-received and coated conditions. The coating material used was a NiCrBSi self-fluxing alloy. The microstructural characterization was carried out using optical
Externí odkaz:
https://doaj.org/article/3e66023014da4b5191ecdf8284bdce78
Autor:
Diego Alexandre Duarte, Marcos Massi
Publikováno v:
Materials Research, Vol 20, Iss 2, Pp 549-554 (2017)
N-doped TiO2 can be deposited by reactive magnetron sputtering by two methods: incorporation of nitrogen particles in the TiO2 lattice or incorporation of oxygen particles in the TiN lattice (oxidation). This paper investigates both procedures by exp
Externí odkaz:
https://doaj.org/article/be7bc5d3b74644289e3f52debaecf9fa
Autor:
Abrão Chiaranda Merij, Tarcila Sugahara, Gislene Valdete Martins, Argemiro Soares da Silva Sobrinho, Danieli Aparecida Pereira Reis, Polyana Alves Radi Gonçalves, Marcos Massi
Publikováno v:
Materials Research, Vol 18, Iss 5, Pp 904-907 (2015)
AbstractIn this paper, chrome (Cr) thin films were deposited and used as interlayer between SiC films and Ti-6Al-4V substrates. Films and interlayers were obtained by using HiPIMS (High Power Impulse Magnetron Sputtering) technique. Interlayers were
Externí odkaz:
https://doaj.org/article/183af9bdacae47acb65843caeb7f1291