Article
Polymer Science
Tonica Boncina, Brigita Polanec, Franc Zupanic, Srecko Glodez
Summary: This study conducted a comprehensive experimental investigation on the wear behavior of coated spur polymer gears made of POM. The results showed that the metallization of aluminium coatings did not significantly affect the wear behavior of the analysed polymer gear. Additionally, gears with thicker aluminium coatings exhibited greater wear compared to gears with thinner coatings or without coatings.
Article
Nanoscience & Nanotechnology
Connor P. Callaway, Aaron L. Liu, Rahul Venkatesh, Yulong Zheng, Myeongyeon Lee, J. Carson Meredith, Martha Grover, Chad Risko, Elsa Reichmanis
Summary: The emergence of data analytics techniques and materials informatics has accelerated the discovery and development of organic semiconductor electronic devices. Combining high-throughput experimentation laboratory techniques and data analytics offers significant opportunities to explore the vast parameter space of organic semiconductor thin films. Incorporating a comprehensive informatics methodology into experimental development can yield a deeper understanding of the physicochemical mechanisms influencing device performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Connor P. Callaway, Aaron L. Liu, Rahul Venkatesh, Yulong Zheng, Myeongyeon Lee, J. Carson Meredith, Martha Grover, Chad Risko, Elsa Reichmanis
Summary: The emergence of data analytics techniques and materials informatics has accelerated the discovery and development of organic semiconductors for electronic devices. By combining high-throughput experimentation (HTE) laboratory techniques with data analytics, better control of thin-film morphology and the construction of process-structure-property relationships can be achieved, leading to predictive capabilities.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Ou Zhuo, Huibin Lei, Zhaohui Zhang, Yanli Tan, Heyu Zhang, Mengning Yuan
Summary: In this study, a PMMA sub-nano crystalline solution was prepared by solvent induced crystallization using the Tyndall effect and applied to a tinplate surface covered with cotton to form a superhydrophobic coating through self-assembly. The microcrystalline solution exhibited a clear Tyndall effect, with crystalline size around 180 nm. The resulting coating showed a concave-convex micro-nano structure on the surface, with a water contact angle of 152.7 degrees and a low sliding angle of 8.2 degrees, indicating excellent superhydrophobicity. Additionally, the coating demonstrated good self-cleaning ability as evidenced by the quick removal of CuCl powder scattered on its surface by water.
SURFACES AND INTERFACES
(2023)
Article
Thermodynamics
G. Koutsakis, J. B. Ghandhi
Summary: An analytical solution was developed to study heat conduction in multilayer walls for thermal barrier coatings in reciprocating internal combustion engines. Using complex analysis and Laplace transform inversion techniques, the mathematical solution was derived. The results showed that the triangular pulse method achieved a significant reduction in computation time compared to finite difference solutions.
APPLIED THERMAL ENGINEERING
(2022)
Article
Materials Science, Ceramics
K. Leng, A. Rincon Romero, T. Hussain
Summary: Rare-earth zirconates, such as GZ, are attractive for the next generation TBC. Double-layer and triple-layer TBC were prepared using suspension and solution precursor HVOF thermal spray. The dense GZ layer minimized crack propagation and inhibited CMAS infiltration. Both double-layer and triple-layer coatings reacted with CMAS, forming gadolinium apatite phase.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Applied
Yimin Luo, Xia Li, Zhuangzhu Luo, Litao Chen, Yujie Yang, Jingbo Li, Guang Han
Summary: This paper reports on an organic-organic fluoropolymer/polyurethane (PF/PU) polymer coating that has strong adhesion strength to rusted steel (18.2 MPa) and after 240 hours of salt spray test (16.5 MPa), which is 2-3 times higher than conventional epoxy (EP) coating (6-9 MPa). The PF/PU coating has successfully protected chemical pipelines from marine atmosphere corrosion for 3 years. A composite polymer-rust-iron substrate with three-dimensional interpenetrating network is fabricated through mechanical interlocking/chemical bonding and PU cross-linking. This new polymer coating technology aims to improve the reliability of high-tech equipment in severe corrosive environments.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Analytical
Mostafa A. Atia, Petr Smejkal, Vipul Gupta, Paul R. Haddad, Michael C. Breadmore
Summary: This study demonstrates the superior performance of chemical vapour deposition (CVD) coating for suppressing the electroosmotic flow (EOF) compared to liquid phase deposition (LPD) in capillary electrophoresis (CE). By adjusting the modification method and surface chemistry, the capillary can be easily and effectively modified, and the stability of the coating meets the long-term monitoring requirements for water chemistry.
ANALYTICA CHIMICA ACTA
(2023)
Article
Mechanics
Deok-Hoon Jeong, Michael Ka Ho Lee, Virgile Thievenaz, Martin Z. Bazant, Alban Sauret
Summary: Dip coating is a process of coating a substrate with a thin liquid layer by withdrawing it from a bath. The presence of particles introduces new length scales and affects the thickness of the coating film. This study investigates the dip coating of suspensions with a bimodal size distribution of particles. It is found that the effective viscosity approach is still valid when the coating film is thicker than the diameter of the largest particles. A model is proposed to predict the probability of entraining the particles in the liquid film.
JOURNAL OF FLUID MECHANICS
(2022)
Article
Materials Science, Ceramics
Hairui Ma, Qiang Miao, Gaohui Zhang, Wenping Liang, Yang Wang, Ziwang Sun, Hao Lin
Summary: Nitride coatings have been widely used on light alloys like titanium and aluminum to enhance their hardness, thermal stability, and wear resistance. In this study, TiAlSiN/TiN multilayered coating and TiAlSiN single-layer coating were applied on TC18 alloy, with the multilayered coating showing better adhesion, hardness, and wear resistance properties compared to the single-layer coating.
CERAMICS INTERNATIONAL
(2021)
Article
Biochemical Research Methods
Sebastien Roca, Laurent Leclercq, Philippe Gonzalez, Laura Dhellemmes, Laurent Boiteau, Gaulthier Rydzek, Herve Cottet
Summary: Protein adsorption on the inner wall of the fused silica capillary wall is a concern for capillary electrophoresis analysis. The influence of the chemical nature and PEGylation of the polyelectrolyte deposited in the last layer of the SMIL coating on the separation performances of model intact proteins was investigated. The experimental results demonstrated the impact of the polycationic last layer on electroosmotic mobility, separation efficiency, and overall resolution.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Chemistry, Applied
Ning Wang, Zhitan Wu, Yu Long, Derong Chen, Chuannan Geng, Xiaochen Liu, Daliang Han, Jing Zhang, Ying Tao, Quan-Hong Yang
Summary: Coating polymer on the surface is an effective way to enhance the stability of metal anodes in batteries. This study proposes a Ti3C2Tx MXene-assisted approach to construct polymer coating on zinc metal surfaces directly from the aqueous solution of monomers. By combining a doctor-blading method with spontaneous polymerization of monomers on the substrates at room temperature, a uniform, adhesive, and versatile coating layer assisted by a small amount of MXene is produced in one step. The coated zinc anode exhibits a long cycling lifespan and the assembled full cells show excellent cycling stability.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Engineering, Biomedical
Zhijing He, Chen Jiao, Junnan Wu, Jiasen Gu, Huixin Liang, Lida Shen, Youwen Yang, Zongjun Tian, Changjiang Wang, Qing Jiang
Summary: Porous hydroxyapatite (HA) scaffolds fabricated by 3D printing have great potential in personalized structural design and biocompatibility, but lack antimicrobial properties. In this study, a porous ceramic scaffold was created using the digital light processing (DLP) method. The scaffold was coated with chitosan/alginate composite and doped with Zn2+ for antibacterial properties. The coated scaffolds exhibited improved compressive strength and delayed degradation, and higher Zn content in the coating promoted cell adhesion, proliferation, and differentiation while showing strong antibacterial effects.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2023)
Article
Materials Science, Multidisciplinary
Joseph Raj Xavier
Summary: A novel multilayer polymeric epoxy coating containing graphene oxide wrapped molybdenum carbide nanoparticles was successfully synthesized. The coating exhibited excellent corrosion protection and enhanced hydrophobicity on mild steel. Additionally, the coating showed significant mechanical properties, with a higher hardness value.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Mechanics
Andrey V. V. Subbotin, Alexander N. N. Semenov
Summary: This paper theoretically studies the formation and coalescence of solvent droplets on a thread of polymer solution during the final stage of capillary pinching. It is found that a quasi-stationary two-phase structure of polydisperse solvent droplets on a polymer string is formed, and this structure is unstable with respect to droplet coalescence.
JOURNAL OF RHEOLOGY
(2023)
