Immersion time effects on the corrosion and passivation characterization of Ni-Cr glassy alloys in artificial seawater

2018 ◽  
Vol 102 ◽  
pp. 165-172 ◽  
Author(s):  
Khadijah M. Emran ◽  
Hanaa Al-Refai
Keyword(s):  
Immersion Time ◽  
Artificial Seawater ◽  
Time Effects ◽  
Glassy Alloys

Characterization of Impressed Current Technique to Model Corrosion of Reinforcement in Concrete

2020 ◽  
Vol 11 (1) ◽  
pp. 93-99
Author(s):  
Abu Zakir Morshed ◽  
Sheikh Shakib ◽  
Tanzim Jahin
Keyword(s):  
Immersion Time ◽  
Chloride Content ◽  
Engineering Science ◽  
Coastal Regions ◽  
Faraday’S Law ◽  
Current Technique ◽  
Corrosion Cell ◽  
Impressed Current

Corrosion of reinforcement is an important durability concern for the structures exposed to coastal regions. Since corrosion of reinforcement involves long periods of time, impressed current technique is usually used to accelerate the corrosion of reinforcement in laboratories. Characterization of impressed current technique was the main focus of this research,which involved determination of optimum chloride content and minimum immersion time of specimens for which the application of Faraday’s law could be efficient. To obtain optimum chloride content, the electrolytes in the corrosion cell were prepared similar to that of concrete pore solutions. Concrete prisms of 200 mm by 200 mm by 300 mm were used to determine the minimum immersion time for saturation. It was found that the optimum chloride content was 35 gm/L and the minimum immersion time for saturation was 140 hours. Accounting the results, a modified expression based on Faraday’s law was proposed to calculate weight loss due to corrosion. Journal of Engineering Science 11(1), 2020, 93-99

Monitoring corrosion and corrosion control of iron in HCl by non-ionic surfactants of the TRITON-X series – Part III. Immersion time effects and theoretical studies

2011 ◽  
Vol 53 (5) ◽  
pp. 1895-1909 ◽  
Author(s):  
Mohammed A. Amin ◽  
M.A. Ahmed ◽  
H.A. Arida ◽  
Fatma Kandemirli ◽  
Murat Saracoglu ◽  
...  
Keyword(s):  
Immersion Time ◽  
Ionic Surfactants ◽  
Theoretical Studies ◽  
Corrosion Control ◽  
Time Effects ◽  
Triton X

scholarly journals Synthesis of mesh-shaped calcia partially stabilized zirconia using eggshell membrane template as filler composite

2017 ◽  
Vol 29 (2) ◽  
Author(s):  
Gema Gempita ◽  
Zulia Hasratiningsih ◽  
Gantini Subrata ◽  
Bambang Sunendar Purwasasmita
Keyword(s):  
Immersion Time ◽  
Sol Gel ◽  
Eggshell Membrane ◽  
Spherical Particles ◽  
Resin Matrix ◽  
Stabilized Zirconia ◽  
Partially Stabilized Zirconia ◽  
Composite Filler ◽  
Composite Hardness

Introduction: This experiment was conducted experimentally to synthesize Calcia Partially Stabilized Zirconia (Ca-PSZ) by sol-gel method using eggshell membrane template as a composite filler. The eggshell membrane was used to produce a mesh shaped structure, which hopefully can improve the mechanical properties of the composite. Method: Ca-PSZ filler was synthesized from ZrOCl2 precursor and Ca(NO3)2 stabilizer with a 24 hours immersion time. Ca-PSZ of synthesis then mixed with the resin matrix to test its composite hardness. Result: The EDS characterization results suggested that the sample contained elements of zirconia, calcium, and oxygen. Whereas, the XRD characterization identified that crystal structures that formed in the sample were nano scale tetragonal. Characterization of SEM showed Ca-PSZ with mesh structured. The average composite hardness value was 15.79 VHN. Conclusion: The composites with Ca-PSZ-synthesized filler could be prepared and its hardness value was higher than the composite with Ca-PSZ filler in spherical particles, but the hardness was still below the composite on the market.

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