Effects of various relative humidity conditions on copper corrosion behavior in bentonite

Bentonite is low resistance water retaining conductive clayey material often used as grounding enhancement material, particularly in a troubled environment. Due to its unique property, bentonite retains water and dissipate unwanted electrical current to ground. However, bentonite's water retent...

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Main Authors: Nurul Syafiqah, Mohd Azmi, Danial, Mohamed, Mohd Yuhyi, Mohd Tadza
Format: Conference or Workshop Item
Language:English
English
Published: Elsevier Ltd 2021
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/35563/1/Effects%20of%20various%20relative%20humidity%20conditions%20on%20copper%20corrosion%20behavior%20in%20bentonite.pdf
http://umpir.ump.edu.my/id/eprint/35563/2/Effects%20of%20various%20relative%20humidity%20conditions%20on%20copper%20corrosion%20behavior%20in%20bentonite_Abs.pdf
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author Nurul Syafiqah, Mohd Azmi
Danial, Mohamed
Mohd Yuhyi, Mohd Tadza
author_facet Nurul Syafiqah, Mohd Azmi
Danial, Mohamed
Mohd Yuhyi, Mohd Tadza
author_sort Nurul Syafiqah, Mohd Azmi
collection UMP
description Bentonite is low resistance water retaining conductive clayey material often used as grounding enhancement material, particularly in a troubled environment. Due to its unique property, bentonite retains water and dissipate unwanted electrical current to ground. However, bentonite's water retention capacity would inevitably induce corrosion to the grounding electrode and may jeopardize the grounding system's performance in the long run. This study presents bentonite properties on copper electrodes' corrosion behavior. In this study, copper corrosion behavior buried in Andrassy bentonite specimens was investigated under varying relative humidity conditions using the vapor equilibrium technique. The corrosion rate was calculated at equilibrium, and FESEM later characterized the corroded surfaces. The copper corrosion rate in Andrassy bentonite was found to be between 2.2 and 2.8 × 10-3mm/year. Test results showed that more water might not necessarily induce and expedite copper corrosion. However, it was noted that copper corrosion was somewhat limited under extremely dry conditions and very wet conditions. On the other hand, RH = 75% was the optimum copper corrosion condition to occur. It is believed that the corrosion of copper specimen may be influenced by other complex mechanism presence of such as chemicals species and microbes contained within the bentonite and surrounding environment.
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spelling UMPir355632022-11-29T06:36:00Z http://umpir.ump.edu.my/id/eprint/35563/ Effects of various relative humidity conditions on copper corrosion behavior in bentonite Nurul Syafiqah, Mohd Azmi Danial, Mohamed Mohd Yuhyi, Mohd Tadza T Technology (General) TA Engineering (General). Civil engineering (General) Bentonite is low resistance water retaining conductive clayey material often used as grounding enhancement material, particularly in a troubled environment. Due to its unique property, bentonite retains water and dissipate unwanted electrical current to ground. However, bentonite's water retention capacity would inevitably induce corrosion to the grounding electrode and may jeopardize the grounding system's performance in the long run. This study presents bentonite properties on copper electrodes' corrosion behavior. In this study, copper corrosion behavior buried in Andrassy bentonite specimens was investigated under varying relative humidity conditions using the vapor equilibrium technique. The corrosion rate was calculated at equilibrium, and FESEM later characterized the corroded surfaces. The copper corrosion rate in Andrassy bentonite was found to be between 2.2 and 2.8 × 10-3mm/year. Test results showed that more water might not necessarily induce and expedite copper corrosion. However, it was noted that copper corrosion was somewhat limited under extremely dry conditions and very wet conditions. On the other hand, RH = 75% was the optimum copper corrosion condition to occur. It is believed that the corrosion of copper specimen may be influenced by other complex mechanism presence of such as chemicals species and microbes contained within the bentonite and surrounding environment. Elsevier Ltd 2021 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/35563/1/Effects%20of%20various%20relative%20humidity%20conditions%20on%20copper%20corrosion%20behavior%20in%20bentonite.pdf pdf en http://umpir.ump.edu.my/id/eprint/35563/2/Effects%20of%20various%20relative%20humidity%20conditions%20on%20copper%20corrosion%20behavior%20in%20bentonite_Abs.pdf Nurul Syafiqah, Mohd Azmi and Danial, Mohamed and Mohd Yuhyi, Mohd Tadza (2021) Effects of various relative humidity conditions on copper corrosion behavior in bentonite. In: Materials Today: Proceedings; 2nd International Conference on Innovative Technology and Sciences, iCITES 2020 , 22 December 2020 , Chennai, India. pp. 801-806., 48 (4). ISSN 2214-7853 https://doi.org/10.1016/j.matpr.2021.02.319
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Nurul Syafiqah, Mohd Azmi
Danial, Mohamed
Mohd Yuhyi, Mohd Tadza
Effects of various relative humidity conditions on copper corrosion behavior in bentonite
title Effects of various relative humidity conditions on copper corrosion behavior in bentonite
title_full Effects of various relative humidity conditions on copper corrosion behavior in bentonite
title_fullStr Effects of various relative humidity conditions on copper corrosion behavior in bentonite
title_full_unstemmed Effects of various relative humidity conditions on copper corrosion behavior in bentonite
title_short Effects of various relative humidity conditions on copper corrosion behavior in bentonite
title_sort effects of various relative humidity conditions on copper corrosion behavior in bentonite
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
url http://umpir.ump.edu.my/id/eprint/35563/1/Effects%20of%20various%20relative%20humidity%20conditions%20on%20copper%20corrosion%20behavior%20in%20bentonite.pdf
http://umpir.ump.edu.my/id/eprint/35563/2/Effects%20of%20various%20relative%20humidity%20conditions%20on%20copper%20corrosion%20behavior%20in%20bentonite_Abs.pdf
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