Robust anti-reflective silica nanocoatings: abrasion resistance enhanced via capillary condensation of APTES

2015 ◽  
Vol 3 (17) ◽  
pp. 4254-4259 ◽  
Author(s):  
Chao Cai ◽  
Xiaoli Yang ◽  
Zhen Wang ◽  
Haixia Dong ◽  
Hongwei Ma ◽  
...  
Keyword(s):  
Abrasion Resistance ◽  
Capillary Condensation ◽  
Mechanical Durability ◽  
Reflective Property ◽  
Reflective Coatings

Capillary condensation of APTES into silica anti-reflective coatings offers both excellent anti-reflective property and robust mechanical durability.

scholarly journals Development of Super Road Heat-Reflective Coating and Its Field Application

Coatings ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 802 ◽  
Author(s):  
Yong Yi ◽  
Yingjun Jiang ◽  
Qilong Li ◽  
Changqing Deng ◽  
Xiaoping Ji ◽  
...  
Keyword(s):  
Bond Strength ◽  
Test Section ◽  
Abrasion Resistance ◽  
Field Application ◽  
Cooling Effect ◽  
Reflective Coating ◽  
Island Effect ◽  
Urban Heat ◽  
Pavement Temperature ◽  
Reflective Coatings

Heat-reflective coatings, used to reduce the asphalt pavement temperature and urban heat island effect, have a good cooling effect; coating development, however, generally focuses on cooling. This study aims to design a heat-reflective coating with both durability and cooling effect by considering the functions of each component, improving the coating bond strength and abrasion resistance, and conducting laboratory tests and test section verification. The coating developed exhibits bond strength and abrasion resistance 20% and 49%, respectively, higher than those of ordinary coatings. The experiments reveal a cooling effect of red coating up to 10.2 °C, a bond strength of up to 1.20 MPa at 25 °C, and an abrasion rate of up to 25% after 60 min; the cooling effect is basically the same as that for traditional heat-reflective coatings, but the bond strength and abrasion resistance significantly improved. In the analysis of the test section, the cooling effect reaches 7.0 °C, the performance of anti-skid decreases little, and the coating is still usable normally after 4 months.

scholarly journals Fabrication of Anti-Reflective Surface with Superhydrophobicity/High Oleophobicity and Enhanced Mechanical Durability via Nanosecond Laser Surface Texturing

Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5691
Author(s):  
Huixin Wang ◽  
Jian Zhuang ◽  
Jiangtao Yu ◽  
Hongyan Qi ◽  
Yunhai Ma ◽  
...  
Keyword(s):  
Abrasion Resistance ◽  
Spectral Reflectance ◽  
Contact Angles ◽  
Experimental Results ◽  
Laser Surface Texturing ◽  
Engine Oil ◽  
Nanosecond Laser ◽  
Reflective Surface ◽  
Mechanical Durability ◽  
Surface Patterns

In this work, anti-reflective surface with superhydrophobicity/oleophobicity and enhanced abrasion resistance was fabricated on steel alloy surface. Two different surface patterns (i.e., parallel microgrooves and spot arrays) were created by nanosecond laser ablation and chemical immersion. The surface micro/nanostructure, spectral reflectance, wettability, and abrasion resistance of all the samples were determined. The experimental results showed that the laser-chemical treated surfaces exhibited much lower spectral reflectance and significantly enhanced surface integrities compared with the untreated surface. Firstly, the contact angles of water, glycerol, and engine oil on the laser-chemical treated surfaces were increased up to 158.9°, 157.2°, and 130.0° respectively, meaning the laser-chemical treated surfaces achieved both superhydrophobicity and high oleophobicity. Secondly, the laser-chemical treated surface showed enhanced abrasion resistance. The experimental results indicated that the spectral reflectance of the laser-chemical treated surfaces remained almost unchanged, while the laser-chemical treated surface patterned with parallel microgrooves sustained superhydrophobicity with a water contact angle of 150.2° even after more than one hundred abrasion cycles, demonstrating the superior mechanical durability. Overall, this fabrication method has shown its effectiveness for fabrication of multifunctional metal surface integrating the surface functionalities of anti-reflectivity, superhydrophobicity/high oleophobicity, and enhanced abrasion resistance.

Decreasing solubility of teeth by the fluoride-lanthanum treatment. III. Acid and abrasion resistance of the coated compound.

1987 ◽  
Vol 29 (5) ◽  
pp. 541-548 ◽  
Author(s):  
Hideyuki Negishi ◽  
Tsutomu Fujihara ◽  
Noboru Yamazaki ◽  
Atsushi Miyagi ◽  
Morio Higaki ◽  
...  
Keyword(s):  
Abrasion Resistance

General Cluster Sorption Isotherm

2020 ◽  
Author(s):  
Christoph Buttersack
Keyword(s):  
Density Functional ◽  
Capillary Condensation ◽  
Cluster Formation ◽  
Full Range ◽  
Full Description ◽  
Cross Sectional ◽  
Macroporous Silica ◽  
Isotherm Equation ◽  
Type Iv ◽  
Classical Thermodynamics

<p>Adsorption isotherms are an essential tool in chemical physics of surfaces. However, several approaches based on a different theoretical basis exist and for isotherms including capillary condensation existing approaches can fail. Here, a general isotherm equation is derived and applied to literature data both concerning type IV isotherms of argon and nitrogen in ordered mesoporous silica, and type II isotherms of disordered macroporous silica. The new isotherm covers the full range of partial pressure (10<sup>-6</sup> - 0.7). It relies firstly on the classical thermodynamics of cluster formation, secondly on a relationship defining the free energy during the increase of the cluster size. That equation replaces the Lennard-Jones potentials used in the classical density functional theory. The determination of surface areas is not possible by this isotherm because the cross-sectional area of a cluster is unknown. Based on the full description of type IV isotherms, most known isotherms are accessible by respective simplifications. </p>

AUR-O-MET 57

Alloy Digest ◽  
1956 ◽  
Vol 5 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
Tensile Properties ◽  
Abrasion Resistance ◽  
Heat Treating ◽  
Aluminum Bronze ◽  
Nickel Aluminum ◽  
High Nickel ◽  
Nickel Aluminum Bronze

Abstract AUR-O-MET 57 is a high nickel-aluminum bronze that was developed primarily for its abrasion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on heat treating, machining, and joining. Filing Code: Cu-42. Producer or source: Aurora Metal Company.

COLMONOY 805

Alloy Digest ◽  
1998 ◽  
Vol 47 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Abrasion Resistance ◽  
Coarse Particles ◽  
Powder Metal ◽  
Chromium Boride ◽  
Nickel Chromium ◽  
The Matrix

Abstract Colmonoy 805 is a nickel-chromium-boron alloy with coarse particles of chromium boride added to give it excellent sliding-type abrasion resistance. The alloy contains chromium boride in the matrix as large added particles. It is supplied only as a crushed powder for application with Colmonoy’s Fuseweld process. This datasheet provides information on composition, physical properties, microstructure, and elasticity. It also includes information on corrosion resistance as well as joining and powder metal forms.Filing Code: Ni-233. Producer or source: Wall Colmonoy Corporation. Originally published September 1976, revised December 1998.

AIRVAN

Alloy Digest ◽  
1965 ◽  
Vol 14 (12) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Abrasion Resistance ◽  
Heat Treating

Abstract AIRVAN is an air-hardening alloy steel possessing excellent non-deforming properties. It is particularly adapted to applications requiring toughness and fairly high abrasion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-172. Producer or source: Firth Sterling Inc..

AK STEEL NITRONIC 30

Alloy Digest ◽  
2013 ◽  
Vol 62 (3) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Stress Corrosion Cracking ◽  
Stainless Steels ◽  
Abrasion Resistance ◽  
Atmospheric Corrosion ◽  
High Strength ◽  
Good Resistance ◽  
Temperature Performance

Abstract AK Steel Nitronic 30 has good wet abrasion resistance, good resistance to aqueous and atmospheric corrosion, high strength, economy, and improved stress-corrosion cracking resistance over common 18-8 stainless steels. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming and joining. Filing Code: SS-1138. Producer or source: AK Steel Corporation.

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