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An electrodeposited Ni-P-WS2 coating with combined super-hydrophobicity and self-lubricating properties

An electrodeposited Ni-P-WS2 coating with combined super-hydrophobicity and self-lubricating properties
An electrodeposited Ni-P-WS2 coating with combined super-hydrophobicity and self-lubricating properties
Self-lu­bri­ca­tion and su­per-hy­dropho­bic­ity are sought-af­ter qual­i­ties in in­dus­trial sur­face fin­ish­ing but such prop­er­ties are rarely com­bined in a sin­gle coat­ing. The pre­sent stud­ies have pro­duced a low-fric­tion, su­per­hy­drophobic Ni-P-WS2 coat­ing by a ver­sa­tile one-pot, sin­gle-step elec­trode­po­si­tion. By ad­just­ing the par­ti­cle and sur­fac­tant con­cen­tra­tions, a hi­er­ar­chi­cal sur­face, con­sist­ing of mi­cron-sized pro­tru­sion ar­rays and sub­mi­cron-sized bumps on the top and ex­hibit­ing a high wa­ter con­tact an­gle of 157 deg was achieved. Fur­ther­more, me­chan­i­cal and fric­tion prop­er­ties are char­ac­ter­ized, re­veal­ing that suf­fi­cient WS2 em­bed­ded in the Ni-P coat­ings en­ables a re­duced fric­tion co­ef­fi­cient of 0.17 by the for­ma­tion of a self-lu­bri­cat­ing tri­bofilm.
dual-scale, elec­trode­posi­ton, Ni-P, self-lu­bri­ca­tion su­per-hy­dropho­bic­ity
0013-4686
872-882
He, Y.
ccaae702-0497-4be1-80be-095d248f5907
Sun, W.T.
ad118a36-3179-4b8d-a93f-d30b312954ec
Wang, S.C.
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Reed, P.A.S.
8b79d87f-3288-4167-bcfc-c1de4b93ce17
Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2
He, Y.
ccaae702-0497-4be1-80be-095d248f5907
Sun, W.T.
ad118a36-3179-4b8d-a93f-d30b312954ec
Wang, S.C.
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Reed, P.A.S.
8b79d87f-3288-4167-bcfc-c1de4b93ce17
Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2

He, Y., Sun, W.T., Wang, S.C., Reed, P.A.S. and Walsh, F.C. (2017) An electrodeposited Ni-P-WS2 coating with combined super-hydrophobicity and self-lubricating properties. Electrochimica Acta, 245, 872-882. (doi:10.1016/j.electacta.2017.05.166).

Record type: Article

Abstract

Self-lu­bri­ca­tion and su­per-hy­dropho­bic­ity are sought-af­ter qual­i­ties in in­dus­trial sur­face fin­ish­ing but such prop­er­ties are rarely com­bined in a sin­gle coat­ing. The pre­sent stud­ies have pro­duced a low-fric­tion, su­per­hy­drophobic Ni-P-WS2 coat­ing by a ver­sa­tile one-pot, sin­gle-step elec­trode­po­si­tion. By ad­just­ing the par­ti­cle and sur­fac­tant con­cen­tra­tions, a hi­er­ar­chi­cal sur­face, con­sist­ing of mi­cron-sized pro­tru­sion ar­rays and sub­mi­cron-sized bumps on the top and ex­hibit­ing a high wa­ter con­tact an­gle of 157 deg was achieved. Fur­ther­more, me­chan­i­cal and fric­tion prop­er­ties are char­ac­ter­ized, re­veal­ing that suf­fi­cient WS2 em­bed­ded in the Ni-P coat­ings en­ables a re­duced fric­tion co­ef­fi­cient of 0.17 by the for­ma­tion of a self-lu­bri­cat­ing tri­bofilm.

Text
EO17-1002 (Revised) (003)1_PASR-sw1 - Accepted Manuscript
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More information

Accepted/In Press date: 25 May 2017
e-pub ahead of print date: 26 May 2017
Published date: 10 August 2017
Keywords: dual-scale, elec­trode­posi­ton, Ni-P, self-lu­bri­ca­tion su­per-hy­dropho­bic­ity

Identifiers

Local EPrints ID: 412156
URI: http://eprints.soton.ac.uk/id/eprint/412156
ISSN: 0013-4686
PURE UUID: 2bce79f1-4024-4b04-853d-3e51d0ccb91f
ORCID for P.A.S. Reed: ORCID iD orcid.org/0000-0002-2258-0347

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Date deposited: 12 Jul 2017 16:30
Last modified: 07 Oct 2020 05:52

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Contributors

Author: Y. He
Author: W.T. Sun
Author: S.C. Wang
Author: P.A.S. Reed ORCID iD
Author: F.C. Walsh

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