Zobrazeno 1 - 10
of 85
pro vyhledávání: '"A. F. Michels"'
Autor:
F. G. Echeverrigaray, S. R. Sales de Mello, C. D. Boeira, L. M. Leidens, M. E. H. Maia da Costa, F. L. Freire Jr., F. Alvarez, A. F. Michels, C. A. Figueroa
Publikováno v:
AIP Advances, Vol 8, Iss 12, Pp 125013-125013-10 (2018)
Lateral force microscopy (LFM) is an established technique to assess friction forces at the nanoscale. Nanoindentation followed by unidirectional sliding (NUS) is also used to evaluate friction forces at the micro/nanoscale. However, comparative stud
Externí odkaz:
https://doaj.org/article/dc529fd993a345ae9fec077359b5a57a
Publikováno v:
Cerâmica, Vol 64, Iss 369, Pp 97-103
Abstract This work presents a study to evaluate the process of producing internal holes in ceramic disks produced by low pressure injection molding (LPIM) process. Two process conditions defined as pre-injection and post-injection were used to test t
Externí odkaz:
https://doaj.org/article/2b6e25d4d26b4d7581e876e44343e142
Publikováno v:
Современная ревматология, Vol 15, Iss 1, Pp 94-97 (2021)
This review describes a case of atraumatic avascular necrosis in the foot and ankle in a patient with systemic sclerosis who did not receive corticosteroid therapy. Both avascular necrosis and systemic sclerosis are uncommon disease entities. This ca
Externí odkaz:
https://doaj.org/article/4900367c61f4492083d3c63379941c86
Autor:
Carla D. Boeira, Felipe Cemin, Leonardo M. Leidens, Jennifer S. Weber, Alexandre F. Michels, Cesar Aguzzoli, Ricardo Serra, Manuel Evaristo, Filipe Fernandes, Fernando Alvarez, Albano Cavaleiro, Carlos A. Figueroa
Publikováno v:
ACS Applied Nano Materials. 5:3763-3772
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be95426d3c0fa21e15bc1a9d206d064f
https://doi.org/10.1021/acsanm.1c04429
https://doi.org/10.1021/acsanm.1c04429
Autor:
Alexandre F. Michels, Leonardo M. Leidens, Tiberiu Minea, Fernando G. Echeverrigaray, Fernando Alvarez, F. Cemin, Saron R.S. de Mello, Antonio Cammarata, Carlos A. Figueroa, Bruna L. Perotti, Tomas Polcar
Publikováno v:
ACS Applied Materials & Interfaces. 13:43746-43754
In dry sliding, the coefficient of friction depends on the material pair and contact conditions. If the material and operating conditions remain unchanged, the coefficient of friction is constant. Obviously, we can tune friction by surface treatments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a2484b0759d248c5672ef3000bc3912
https://doi.org/10.1021/acsami.1c13054
https://doi.org/10.1021/acsami.1c13054
Autor:
Leonardo M. Leidens, Neileth S. Figueroa, Alexandre F. Michels, Rodrigo A. Barbieri, Carlos A. Figueroa, Fernando Alvarez, M.E.H. Maia da Costa
Publikováno v:
Physical Chemistry Chemical Physics. 23:2873-2884
Friction is a ubiquitous manifestation of nature, and when it is studied at the nanoscale, complex and interesting effects arise from fundamental physical and chemical surface properties. Surprisingly, and probably due to the complexity of nanofricti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68e34490ceeacf85cef979e0592cff9a
https://doi.org/10.1039/d0cp06436j
https://doi.org/10.1039/d0cp06436j
Autor:
Alexandre F. Michels, Daniel Matté, Cláudio A. Perottoni, G. L. Rech, Janete Eunice Zorzi, Carlos A. Figueroa, Leonardo M. Leidens
Publikováno v:
Applied Physics A. 127
Computer simulations are becoming increasingly useful for studying friction, enabling the application of controlled conditions and setups that are not usually achievable in physical experiments and ensuring that no other undesirable variable is actin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4df36a207fbaba48bde96b64b132e667
https://doi.org/10.1007/s00339-021-04803-3
https://doi.org/10.1007/s00339-021-04803-3
Autor:
M.E.H. Maia da Costa, Carlos A. Figueroa, C. D. Boeira, Ângela E. Crespi, Leonardo M. Leidens, Alexandre F. Michels
Publikováno v:
Vacuum. 167:21-27
Hydrogenated amorphous carbon (a-C:H) thin films show low adhesion on ferrous alloys. The addition of a silicon-containing interlayer could minimize the problem but traditionally high deposition temperatures are still needed (at least 300 °C). Howev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c85669ceed4dc60a512db03cd9b9ac7
https://doi.org/10.1016/j.vacuum.2019.05.019
https://doi.org/10.1016/j.vacuum.2019.05.019
Autor:
Ângela E. Crespi, Alexandre F. Michels, Carlos A. Figueroa, Bruna L. Perotti, Vinícius Gabriel Antunes, Fernando Alvarez, Leonardo M. Leidens
Publikováno v:
ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces, Washington, D.C. : American Chemical Society, 2019, 11 (19), pp.18024-18033. ⟨10.1021/acsami.9b03597⟩
ACS Applied Materials & Interfaces, Washington, D.C. : American Chemical Society, 2019, 11 (19), pp.18024-18033. ⟨10.1021/acsami.9b03597⟩
Hydrogenated amorphous carbon thin films (a-C:H) have attracted much attention because of their surprising properties, including ultralow friction coefficients in specific conditions. Adhesion of a-C:H films on ferrous alloys is poor due to chemical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3351fa76f5131a51394ce346c756657
https://doi.org/10.1021/acsami.9b03597
https://doi.org/10.1021/acsami.9b03597
Publikováno v:
Frontiers in Chemical Engineering, Vol 3 (2021)
The novel coronavirus designated as SARS-CoV-2 has risen the first pandemic caused by coronavirus and by November 26, 2020 is responsible for more than 1,410 million deaths. This scenario evidences that despite previous pandemics and epidemics in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62ab45597a652ddb46c1db33aa77b017
https://www.frontiersin.org/articles/10.3389/fceng.2021.636075/full
https://www.frontiersin.org/articles/10.3389/fceng.2021.636075/full