Zobrazeno 1 - 10
of 138
pro vyhledávání: '"Willian Aperador"'
Autor:
Giovany Orozco-Hernández, Sara V. Mosquera-Diaz, Juliana V. Ramírez-Monroy, Willian Aperador, Adriana P. Corredor-Figueroa, Yaneth Pineda-Triana
Publikováno v:
Metals, Vol 14, Iss 10, p 1144 (2024)
Titanium alloys, particularly Ti6Al4V, are widely used in biomedical applications due to their excellent mechanical properties and inherent biocompatibility. However, enhancing their surface characteristics, such as biocompatibility and corrosion res
Externí odkaz:
https://doaj.org/article/7472f37fc5a843b08f93e5186e3bc476
Autor:
Rodolfo Barragán-Ramírez, Andrés González-Hernández, Jorge Bautista-Ruiz, Michel Ospina, Willian Aperador Chaparro
Publikováno v:
Materials, Vol 17, Iss 12, p 3001 (2024)
The effect of an alternative source of silica, based on class F fly ash mixed with blast furnace slag and activated by rice husk ash (RHA), to produce concrete exposed to marine environments was evaluated. Four mixtures activated by the combination o
Externí odkaz:
https://doaj.org/article/72973b6f66a64ea9a262a0164836a729
Publikováno v:
Metals, Vol 13, Iss 4, p 818 (2023)
For industrial processes in which refractory metals are necessary, hafnium carbonitride exhibits excellent performance due to its high thermal conductivity and resistance to oxidation. In this study, hafnium carbonitride was deposited on Inconel 718
Externí odkaz:
https://doaj.org/article/117fb4b6481c40ddb58f514e2d283e88
Publikováno v:
Lubricants, Vol 11, Iss 3, p 91 (2023)
The applications projected in the coatings are in implants with the lower extremities since they require a great load capacity and are essential for walking. Therefore, the use of devices or implants is necessary for recovery, osteosynthesis, and fix
Externí odkaz:
https://doaj.org/article/9471d167f7c449a590c14ca0bfcebe23
Publikováno v:
Metals, Vol 12, Iss 11, p 1952 (2022)
The electrochemical impedance spectroscopy (EIS) technique is widely used in the study of the corrosion of metallic materials. This method also allows for the electrical characterization at the ceramic–metal interface in contact with an aqueous sol
Externí odkaz:
https://doaj.org/article/e46afb73656a458ea5e66754d67a36e1
Publikováno v:
Metals, Vol 12, Iss 10, p 1585 (2022)
Using the rf magnetron sputtering technique, Bi3.75La0.25Ti3O12 and Bi3La1Ti3O12 coatings were formed and obtained as a thin film on Hastelloy substrates. When subjected to high-temperature conditions, the effect of lanthanum on the anti-corrosive pr
Externí odkaz:
https://doaj.org/article/39dabd95bbed410eabab362eb66ddde2
Publikováno v:
Metals, Vol 11, Iss 12, p 2049 (2021)
The aim of this work is the improvement of the electrochemical behavior of industrial steel using [CoN/AlN]n multilayered system via reactive Pulsed Laser Deposition (PLD) technique with a Nd: YAG laser (λ = 1064 nm) on Silicon (100) and AISI 302 st
Externí odkaz:
https://doaj.org/article/d8e367e1d66142cc9f9417b6ba728b39
Robust tribo-mechanical and hot corrosion resistance of ultra-refractory Ta-Hf-C ternary alloy films
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract In this work we report the hot corrosion properties of binary and ternary films of the Ta-Hf-C system in V2O5-Na2SO4 (50%wt.-50%wt.) molten salts at 700 °C deposited on AISI D3 steel substrates. Additionally, the mechanical and nanowear pro
Externí odkaz:
https://doaj.org/article/fa6b3f64611242f7a8a63f7a1d4a8752
Publikováno v:
Materials, Vol 14, Iss 2, p 425 (2021)
The corrosion behavior of austenitic Fe–Mn–Al–Cr–C twinning-induced plasticity (TWIP) and microband-induced plasticity (MBIP) steels with different alloying elements ranging from 22.6–30 wt.% Mn, 5.2–8.5 wt.% Al, 3.1–5.1 wt.% Cr, to 0.6
Externí odkaz:
https://doaj.org/article/581f76e4b1614075848e36f538d8c04e
Autor:
Willian Aperador Chaparro
Publikováno v:
Ingeniería e Investigación, Vol 34, Iss 1, Pp 22-28 (2014)
Wear and tribological behavior of [HfN/VN]n multinanolayers deposited via magnetron sputtering has been exhaustively studied in this work. Enhancement of both hardness and elastic modulus up to 37 GPa and 351 GPa, respectively, was observed as bilaye
Externí odkaz:
https://doaj.org/article/196b8c20d0754364b90f824f7a4de7b0