Corrosion resistance and antibacterial properties of copper coating deposited by cold gas spray

被引：58

作者：

da Silva, F. S. ^{[1
,2
]}

Cinca, N. ^{[2
]}

Dosta, S. ^{[2
]}

Cano, I. G. ^{[2
]}

Guilemany, J. M. ^{[2
]}

Caires, C. S. A. ^{[3
]}

Lima, A. R. ^{[3
]}

Silva, C. M. ^{[3
]}

Oliveira, S. L. ^{[3
]}

Caires, A. R. L. ^{[3
]}

Benedetti, A. V. ^{[1
]}

机构：

[1] UNESP Sao Paulo State Univ, Inst Chem, Rua Prof Francisco Degni 55,POB 355, BR-14800060 Araraquara, SP, Brazil

[2] Barcelona Univ, CPT, Marti i Franques 1, Barcelona 08028, Spain

[3] Univ Fed Mato Grosso do Sul, POB 549, BR-79070900 Campo Grande, MS, Brazil

来源：

SURFACE & COATINGS TECHNOLOGY | 2019年 / 361卷

关键词：

Metallic coating; Cold gas spray; Copper; Antibacterial surface; Staphylococcus aureus; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; LOW CURRENT DENSITIES; CU-NI ALLOYS; 1 M HCL; MECHANICAL-PROPERTIES; STAINLESS-STEEL; DYNAMIC SPRAY; NACL SOLUTION; ANODIC-DISSOLUTION; BEHAVIOR;

D O I：

10.1016/j.surfcoat.2019.01.029

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This work describes the morphology, corrosion resistance, and antibacterial performance of copper coating deposited onto carbon steel by cold gas spray (CGS). Cross-sectional images of the coating showed a dense microstructure, with porosity lower than 1%. XRD analysis revealed no oxides or phases different to pure copper. The results of electrochemical tests demonstrated the efficient barrier properties and the compact microstructure of the coating, which protected the substrate against corrosion in chloride solution for > 1000 h. The copper coating was effective as an antimicrobial agent for inhibiting the growth of Staphylococcus aureus, with bacterial growth being completely inhibited after 10 min of direct contact between the bacteria and the coating surface.

引用

页码：292 / 301

页数：10

共 82 条

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