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

被引：74
|
作者：
He, Y. [1 ,2 ]
Sun, W. T. [3 ]
Wang, S. C. [1 ]
Reed, P. A. S. [4 ]
Walsh, F. C. [1 ]
机构：
[1] Univ Southampton, Natl Ctr Adv Tribol Southampton nCATS, Southampton SO17 1BJ, Hants, England
[2] Harbin Inst Technol, Ctr Composite Mat & Struct, Harbin 150080, Heilongjiang, Peoples R China
[3] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China
[4] Univ Southampton, Engn Mat & Surface Engn, Southampton SO17 1BJ, Hants, England
来源：
ELECTROCHIMICA ACTA | 2017年 / 245卷
基金：
英国工程与自然科学研究理事会;
关键词：
dual-scale; electrodepositon; Ni-P; self-lubrication; super-hydrophobicity; ONE-STEP ELECTRODEPOSITION; SUPERHYDROPHOBIC SURFACES; WS2; NANOPARTICLES; NI; WETTABILITY; WEAR; RESISTANCE; MECHANISM; BEHAVIOR;
D O I：
10.1016/j.electacta.2017.05.166
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
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, superhydrophic 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. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：872 / 882
页数：11
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