Synthesis of Ti–Nb–C–N based composite coating on AISI-4340 steel by modified cathodic cage plasma deposition

Autor: J. F. M. Neto, M. Naeem, T. H. C. Costa, L. L. F. Lima, R. R. M. Sousa, M. C. Feitor, M. S. Libório, R. M. Nascimento

Publikováno v: Journal of Materials Science. 58:7182-7194

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2833885595dbfe66848da32f1ba20e80
https://doi.org/10.1007/s10853-023-08494-4

Synthesis and characterization of ZnO/ZnAl2O4/Zn2TiO4 composite films by Ar–O2 mixture hollow cathode glow discharge

Autor: J. B. A. Filho, J.C.A. de Queiroz, M. S. Libório, Thércio Henrique de Carvalho Costa, M. G. O. Queiroz, Michelle Cequeira Feitor, E.B. Melo, Rômulo Ribeiro Magalhães de Sousa, Muhammad Naeem

Publikováno v: Journal of Materials Research and Technology, Vol 12, Iss, Pp 2426-2437 (2021)

In this study, ZnO/ZnAl2O4/Zn2TiO4 composite nanostructured thin films are deposited assisted with hollow-cathode glow discharge (HCD). The films are deposited using various argon-oxygen gases mixture (0–50% O2), and its effect on film quality, opt

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ac8f6983aeb60d92e08120a7bf53654
https://doi.org/10.1016/j.jmrt.2021.04.026

Design, manufacturing and plasma nitriding of AISI-M2 steel forming tool and its performance analysis

Autor: J. C. Díaz-Guillén, Javed Iqbal, L.N.M. Araújo, Rômulo Ribeiro Magalhães de Sousa, A.G.F. Araújo, K. H. Khan, Thércio Henrique de Carvalho Costa, Muhammad Naeem, M. S. Libório

Publikováno v: Journal of Materials Research and Technology, Vol 9, Iss 6, Pp 14517-14527 (2020)

Mechanical manufacturing processes aim to transform metallic materials into mechanical parts and components. In these processes, tools are used for cutting, punching and stamping. The ending of the useful lifetime of these tools happens with wear of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc3c1c253df5571b8a83ded6c1261113
https://doi.org/10.1016/j.jmrt.2020.10.048

Optical-Electrical Properties and Thickness Analysis of TiO2 Thin Films Obtained by Magnetron Sputtering

Autor: L. L. F. Lima, Ivan Alves de Souza, V. S. S. Sobrinho, Michelle Cequeira Feitor, M. S. Libório, Thércio Henrique de Carvalho Costa, E. O. Almeida, José Quinzinho Medeiros Neto, J. C. A. Queiroz, Rômulo Ribeiro Magalhães de Sousa

Publikováno v: Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN

2030-12 The study of thin films with properties that meet specific needs and improve people’s quality of life has been the focus of many researchers. However, knowing and controlling the production techniques of these films have been a challenge fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e2b9844f088098d93ebb236966b1479
https://doi.org/10.1007/s13538-020-00794-3

Study of High-Density Polyethylene (HDPE) Kinetics Modification Treated by Dielectric Barrier Discharge (DBD) Plasma

Autor: Michelle Cequeira Feitor, Rômulo Ribeiro Magalhães de Sousa, Gutembergy Ferreira Diniz, M. S. Libório, Ivan Alves de Souza, Thércio Henrique de Carvalho Costa, João Freire de Medeiros Neto, Talita Galvão Targino

Publikováno v: Polymers, Vol 12, Iss 2422, p 2422 (2020)
Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
Polymers
Volume 12
Issue 10

In this work, the plasma was used in the dielectric barrier discharge (DBD) technique for modifying the high-density polyethylene (HDPE) surface. The treatments were performed via argon or oxygen, for 10 min, at a frequency of 820 Hz, voltage of 20 k

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bcc751cd7f33c5e1aaa10964c5795fd
https://www.mdpi.com/2073-4360/12/10/2422