scholarly journals EIS Study of Nanostructured Cerium Molybdate Doped Sol-Gel Films on 2024 Aluminum Alloy

2010 ◽  
Keyword(s):  
Aluminum Alloy ◽  
Sol Gel ◽  
2024 Aluminum Alloy ◽  
Sol Gel Films

Corrosion Studies and Interfacial Bonding of Urea/Poly(dimethylsiloxane) Sol/Gel Hydrophobic Coatings on AA 2024 Aluminum Alloy

Langmuir ◽  
2007 ◽  
Vol 23 (10) ◽  
pp. 5505-5514 ◽  
Author(s):  
Mojca Fir ◽  
Boris Orel ◽  
Angela Šurca Vuk ◽  
Aljaž Vilčnik ◽  
Robi Ješe ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Sol Gel ◽  
Interfacial Bonding ◽  
2024 Aluminum Alloy ◽  
Hydrophobic Coatings ◽  
Corrosion Studies ◽  
Aa 2024

Adsorption Behavior of GTMS on AA2024-T3 Aluminum Alloy and the Application on Surface Pretreatment

2020 ◽  
Vol 984 ◽  
pp. 31-42
Author(s):  
Bing Xue ◽  
Xue Mei Zong ◽  
Can Wang ◽  
Hua Yuan Zhang ◽  
Jing Luo
Keyword(s):  
Aluminum Alloy ◽  
Selective Adsorption ◽  
Surface Condition ◽  
Sol Gel ◽  
Adsorption Behavior ◽  
Second Phase ◽  
Surface Pretreatment ◽  
Pretreatment Method ◽  
Second Phase Particles ◽  
Sol Gel Films

Basing on the study of adsorption behavior of glycidoxypropyl-trimethoxy-silane (GTMS), pretreatment method of AA2024-T3 aluminum alloy for sol-gel films was optimized. The morphology, composition and corrosion protective performance of alloy coated with the films were investigated by using FE-SEM, EDS, AFM and EIS. The results showed that the Al matrix exhibited better ability to adsorb GTMS molecules than the second phase particles, especially at lower concentration of GTMS. Further, the 5% GTMS films cover the whole surface, but the selective adsorption behaviors still exist. It was concluded that less second phase particles and smoother surface were benefit to the sol-gel films on aluminum alloy. Depending on this conclusion, the pretreatment method for sol-gel films was optimized. The optimized surface condition conducted with 50 g•L-1 sodium hydroxide and ultrasound at 60 oC for 30 s was obtained. These samples coated with the sol-gel films revealed good anti-corrosion performance. The coverage degree of the films was up to 97.95 %.

Sol-gel/MOF nanocomposite for effective protection of 2024 aluminum alloy against corrosion

2019 ◽  
Vol 380 ◽  
pp. 125038 ◽  
Author(s):  
Y. Jafari Tarzanagh ◽  
D. Seifzadeh ◽  
Z. Rajabalizadeh ◽  
A. Habibi-Yangjeh ◽  
A. Khodayari ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Sol Gel ◽  
Effective Protection ◽  
2024 Aluminum Alloy

Optimization of synthesis parameters of mesoporous silica sol–gel thin films for application on 2024 aluminum alloy substrates

2013 ◽  
Vol 277 ◽  
pp. 201-210 ◽  
Author(s):  
Isaline Recloux ◽  
Marc Debliquy ◽  
Alexandra Baroni ◽  
Yoann Paint ◽  
Alex Lanzutti ◽  
...  
Keyword(s):  
Thin Films ◽  
Aluminum Alloy ◽  
Mesoporous Silica ◽  
Sol Gel ◽  
Silica Sol ◽  
2024 Aluminum Alloy ◽  
Synthesis Parameters

Study on Surface Modification of Aluminum Alloys by Silicate-Based Hybrid Coating

2013 ◽  
Vol 652-654 ◽  
pp. 1792-1798
Author(s):  
Jia Yu Wang ◽  
Cheng Li
Keyword(s):  
Aluminum Alloy ◽  
Sol Gel ◽  
Corrosion Current ◽  
Hybrid Coating ◽  
Hybrid Coatings ◽  
Protective Behavior ◽  
Nacl Solution ◽  
2024 Aluminum Alloy ◽  
Higher Temperature ◽  
Excellent Stability

Silicate-based hybrid coatings were deposited on aluminum alloy substrates following the methodology of sol-gel procedure and are applying to survey the corrosion protective behavior. The results show that the optimal intact and uniform film can be obtained by preparing with Si:Al mole ratio 48:1 and tempering at 140°C. It was noted that this modified hybrid coating reduced the corrosion current density from 1.532×10-4A/cm2 (bare substrate) to 2.782×10-8 A/cm2 in 3.5 wt. % NaCl solution. The coating represents an excellent stability, especially at higher temperature, therefore could offer a significant protection to 2024 aluminum alloy substrates.

Sign in / Sign up

Export Citation Format

Share Document