Fundamental, Fabrication and Applications of Superhydrophobic Surfaces

2016 ◽  
pp. 341-368 ◽  
Author(s):  
Adel M Mohamed ◽  
Aboubakr Moustafa Abdullah ◽  
Mariam Al-Maadeed ◽  
Ahmed Bahgat
Keyword(s):  
Negative Impact ◽  
Financial Burden ◽  
Theoretical Background ◽  
Metal Alloys ◽  
Superhydrophobic Surfaces ◽  
Corrosion Resistant ◽  
Superhydrophobic Coatings ◽  
Organic Inhibitors ◽  
Corrosion Resistant Coatings ◽  
Preparation Techniques

The need to create new enhanced corrosion resistant coatings has grown because of the financial burden corrosion places on certain industries such as oil industry. Organic inhibitors have been extensively reported to protect metals and metallic alloys from corrosion although they have a negative impact on environment. Development of better corrosion resistant coatings such as metal alloys, metal-ceramics, polymers, and hydrophobic films are examples of corrosion resistant coatings for metals and alloys. Recently, superhydrophobic coatings have been widely implemented into many fields including anti-fogging transparent materials, self-cleaning surfaces, biomedical and corrosion applications. In the proposed chapter, a comprehensive review will be dedicated for the fundamentals and developments of superhydrophobic materials including theoretical background; superhydrophobicity in nature; preparation techniques; and recent attempts to develop superhydrophobic surfaces.

Recent advances in corrosion resistant superhydrophobic coatings

2018 ◽  
Vol 36 (2) ◽  
pp. 127-153 ◽  
Author(s):  
Ahmed Bahgat Radwan ◽  
Aboubakr M. Abdullah ◽  
Nasser A. Alnuaimi
Keyword(s):  
Contact Angle ◽  
Surface Energy ◽  
Water Contact Angle ◽  
Metals And Alloys ◽  
Superhydrophobic Surfaces ◽  
Water Repellent ◽  
Water Contact ◽  
Corrosion Resistant ◽  
Superhydrophobic Coatings ◽  
Recent Advances

AbstractExtreme water-repellent (superhydrophobic) coatings with water contact angle higher than 150° have caught the attention of corrosion researchers in the last decade as they can be used to protect metals and alloys against corrosion. The latter is a serious problem, as it can threaten human lives in addition to its deleterious effects on the economy and environment. Superhydrophobic coatings (SHCs) can be achieved by lowering the surface energy of a certain coating through combining some of its surface features at the microscale and nanoscales. Although SHCs can be prepared using many different easy techniques, none, to the best of our knowledge, has been applied, so far, on an industrial scale for protection against corrosion of metals and alloys. The present work explains the different models of superhydrophobic surfaces (SHSs) and reviews their fabrication and processing methods with a focus on the recent advances in the corrosion protection of the SHC.

Functional protective coatings of nickel-based alloys

2019 ◽  
pp. 110-114
Author(s):  
D. A. Gerashchenkov ◽  
T. I. Bobkova ◽  
A. F. Vasiliev ◽  
P. A. Kuznetsov ◽  
E. A. Samodelkin ◽  
...  
Keyword(s):  
Environmental Influence ◽  
Protective Coatings ◽  
Cold Gas Dynamic Spraying ◽  
Functional Elements ◽  
Corrosion Resistant ◽  
Gas Dynamic ◽  
Precision Alloy ◽  
Wear And Corrosion ◽  
High Level ◽  
Corrosion Resistant Coatings

A composition of a precision alloy based on the Ni–Cr–Mo system for wear and corrosion-resistant coatings by supersonic cold gas dynamic spraying has been developed. The optimum coatings composition provides high level of operational properties; its application is very promising for protection of structural and functional elements of marine equipment from aggressive environmental influence.

Laser Tailoring the Surface Chemistry and Morphology for Wear, Scale and Corrosion Resistant Superhydrophobic Coatings

Langmuir ◽  
2018 ◽  
Vol 34 (24) ◽  
pp. 7059-7066 ◽  
Author(s):  
Ludmila B. Boinovich ◽  
Kirill A. Emelyanenko ◽  
Alexander G. Domantovsky ◽  
Alexandre M. Emelyanenko
Keyword(s):  
Surface Chemistry ◽  
Corrosion Resistant ◽  
Superhydrophobic Coatings ◽  
Laser Tailoring

Superhydrophobic Coatings: The Salvinia Paradox: Superhydrophobic Surfaces with Hydrophilic Pins for Air Retention Under Water (Adv. Mater. 21/2010)

2010 ◽  
Vol 22 (21) ◽  
pp. n/a-n/a ◽  
Author(s):  
Wilhelm Barthlott ◽  
Thomas Schimmel ◽  
Sabine Wiersch ◽  
Kerstin Koch ◽  
Martin Brede ◽  
...  
Keyword(s):  
Superhydrophobic Surfaces ◽  
Superhydrophobic Coatings

A Study on Mechanical and Tribological Properties of Hot Pressed Al2O3/ZrO2/h-BN/TiO2 Composites

2011 ◽  
Vol 695 ◽  
pp. 417-420 ◽  
Author(s):  
Hyun Hwi Lee ◽  
Seung Ho Kim ◽  
Bhupendra Joshi ◽  
Soo Wohn Lee
Keyword(s):  
Tribological Properties ◽  
Ceramic Composite ◽  
Elevated Temperatures ◽  
Cutting Tools ◽  
High Hardness ◽  
High Melting Point ◽  
Corrosion Resistant ◽  
Mechanical And Tribological Properties ◽  
Chemical Inertness ◽  
Corrosion Resistant Coatings

Oxide ceramics such as alumina and zirconia are industrially utilized as cutting tools, a variety of bearings, biomaterials, and thermal and corrosion-resistant coatings due to their high hardness, chemical inertness, high melting point, and ability to retain mechanical strength at elevated temperatures. In this research, the effect of other ceramic additives (TiO2) and h-BN within alumina(α-Al2O3) and yttria-stabilized tetragonal (Y-TZP) composite was studied with respect to the mechanical and tribological properties. The lowest coefficient of frction of 0.45 was observed for the ZTA ceramic composite with hBN-TiO2. The highest hardness, fracture toughness and flexural strength were obtained as 15.7GPa, 5.2MPam-1/2, 712MPa, respectively.

(Invited) Corrosion Resistant Coatings for PEM Bipolar Plates, Current Collectors, and PTL’s

2021 ◽  
Vol MA2021-02 (37) ◽  
pp. 1112-1112
Author(s):  
Ton Hurkmans ◽  
Frank Schuivens ◽  
Joris Ummels ◽  
Gerry van der Kolk ◽  
Roel Bosch
Keyword(s):  
Bipolar Plates ◽  
Corrosion Resistant ◽  
Current Collectors ◽  
Corrosion Resistant Coatings

Corrosion resistant metal-ceramic composite coatings for tribological applications

2021 ◽  
pp. 1-34
Author(s):  
Peter Renner ◽  
Swarn Jha ◽  
Yan Chen ◽  
Tariq Chagouri ◽  
Serge Kazadi ◽  
...  
Keyword(s):  
Ceramic Composite ◽  
Low Cost ◽  
Composite Coatings ◽  
Salt Spray ◽  
Extreme Environments ◽  
Safe Procedure ◽  
Corrosion Resistant ◽  
Wide Range ◽  
Metal Ceramic ◽  
Corrosion Resistant Coatings

Abstract Effective design of corrosion-resistant coatings is critical for the protection of metals and alloys. Many state-of-the-art corrosion-resistant coatings are unable to satisfy the challenges in extreme environments for tribological applications, such as elevated or cryogenic temperatures, high mechanical loads and impacts, severe wear, chemical attack, or a combination of these. The nature of challenging conditions demands that coatings have high corrosion and wear resistance, sustained friction control, and maintain surface integrity. In this research, multi-performance metal-ceramic composite coatings were developed for applications in harsh environments. These coatings were developed with an easy to fabricate, low-cost, and safe procedure. The coating consisted of boron nitride, graphite, silicon carbide, and transition metals such as chromium or nickel using epoxy as vehicle and bonding agent. Salt spray corrosion tests showed that 1010 carbon steel (1/4 hard temper) substrates lost 20-100× more mass than the coatings. The potentiodynamic polarization study showed better performance of the coatings by seven orders of magnitude in terms of corrosion relative to the substrate. Additionally, the corrosion rates of the coatings with Ni as an additive were five orders of magnitude lower than reported. The coefficient of friction of coatings was as low as 0.1, five to six times lower than that of epoxy and lower than a wide range of epoxy resin-based coatings found in literature. Coatings developed here exhibited potential in applications in challenging environments for tribological applications.

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