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Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability

Calvin Richards, C.F. Glover, G. Williams, Hamilton McMurray, Jenny Baker Orcid Logo, Geraint Williams Orcid Logo

Corrosion Science, Volume: 136, Pages: 285 - 291

Swansea University Authors: Calvin Richards, Hamilton McMurray, Jenny Baker Orcid Logo, Geraint Williams Orcid Logo

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DOI (Published version): 10.1016/j.corsci.2018.03.016

Abstract

The electronic and diffusion-blocking properties of graphene nano-platelets (GNPs) are quantified with a view to understanding their action as (possible) additives to anti-corrosion coatings. Platelet size and thickness are determined by SEM and BET specific surface area measurements. A Scanning Kel...

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Published in: Corrosion Science
ISSN: 0010-938X
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa39089
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first_indexed 2018-03-15T14:10:36Z
last_indexed 2021-01-15T04:00:54Z
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spelling 2021-01-14T12:59:13.1102944 v2 39089 2018-03-15 Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability fba04fac258816964c5a4ba702b025e9 Calvin Richards Calvin Richards true false 56fc1b17ffc3bdf6039dc05c6eba7f2a Hamilton McMurray Hamilton McMurray true false 6913b56f36f0c8cd34d8c9040d2df460 0000-0003-3530-1957 Jenny Baker Jenny Baker true false 0d8fc8d44e2a3c88ce61832f66f20d82 0000-0002-3399-5142 Geraint Williams Geraint Williams true false 2018-03-15 MTLS The electronic and diffusion-blocking properties of graphene nano-platelets (GNPs) are quantified with a view to understanding their action as (possible) additives to anti-corrosion coatings. Platelet size and thickness are determined by SEM and BET specific surface area measurements. A Scanning Kelvin probe is used to show that a contact potential of up to 1.4 V develops between GNP particles and various metal substrates: silver, copper, iron and zinc. A novel photochemical method is used to show that oxygen permeation rates through a PVB-GNP (polyvinylbutyral) composite coating decrease by over an order of magnitude as GNP volume fraction increases to 0.056. Journal Article Corrosion Science 136 285 291 0010-938X Graphene nano-platelets; contact potential; scanning Kelvin probe; oxygen permeability 15 5 2018 2018-05-15 10.1016/j.corsci.2018.03.016 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2021-01-14T12:59:13.1102944 2018-03-15T11:24:45.1634814 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Calvin Richards 1 C.F. Glover 2 G. Williams 3 Hamilton McMurray 4 Jenny Baker 0000-0003-3530-1957 5 Geraint Williams 0000-0002-3399-5142 6 0039089-15032018112548.pdf richards2018.pdf 2018-03-15T11:25:48.5330000 Output 9411857 application/pdf Accepted Manuscript true 2019-03-14T00:00:00.0000000 true eng
title Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
spellingShingle Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
Calvin Richards
Hamilton McMurray
Jenny Baker
Geraint Williams
title_short Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
title_full Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
title_fullStr Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
title_full_unstemmed Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
title_sort Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
author_id_str_mv fba04fac258816964c5a4ba702b025e9
56fc1b17ffc3bdf6039dc05c6eba7f2a
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0d8fc8d44e2a3c88ce61832f66f20d82
author_id_fullname_str_mv fba04fac258816964c5a4ba702b025e9_***_Calvin Richards
56fc1b17ffc3bdf6039dc05c6eba7f2a_***_Hamilton McMurray
6913b56f36f0c8cd34d8c9040d2df460_***_Jenny Baker
0d8fc8d44e2a3c88ce61832f66f20d82_***_Geraint Williams
author Calvin Richards
Hamilton McMurray
Jenny Baker
Geraint Williams
author2 Calvin Richards
C.F. Glover
G. Williams
Hamilton McMurray
Jenny Baker
Geraint Williams
format Journal article
container_title Corrosion Science
container_volume 136
container_start_page 285
publishDate 2018
institution Swansea University
issn 0010-938X
doi_str_mv 10.1016/j.corsci.2018.03.016
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description The electronic and diffusion-blocking properties of graphene nano-platelets (GNPs) are quantified with a view to understanding their action as (possible) additives to anti-corrosion coatings. Platelet size and thickness are determined by SEM and BET specific surface area measurements. A Scanning Kelvin probe is used to show that a contact potential of up to 1.4 V develops between GNP particles and various metal substrates: silver, copper, iron and zinc. A novel photochemical method is used to show that oxygen permeation rates through a PVB-GNP (polyvinylbutyral) composite coating decrease by over an order of magnitude as GNP volume fraction increases to 0.056.
published_date 2018-05-15T03:49:36Z
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