Results 131 to 140 of about 231,274 (389)

Study on Abrasion of Coiled Tubing for Reverse Circulation Sand Washing

Shiyou jixie, 2020
To address the abrasion on the pipe wall caused by high particle volume fraction fluid during reverse circulation sand washing using coiled tubing, the Euler-Euler two-phase flow model is adopted, a new wear model is selected and the corresponding user ...
Zhao Qian, Huang Hongbin, Wang Yiquan, Zhang Yongxue, Zhang Jinya   +4 more
doaj  

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

Advanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner, Joshua Schober, Pascal Dippell, Chantal Glatthaar, Smail Mekhilef, David Schäfer, Hannes Hergert, Marcus Rohnke, Matthias T. Elm, Bernd M. Smarsly   +9 more
wiley   +1 more source

Numerical simulation study on erosion mechanism of pre-mixed abrasive water jet

Advances in Mechanical Engineering, 2017
In order to optimize the parameters of the pre-mixed abrasive water jet cutting technology and make it more efficient in the coal mine gas environment, finite element analysis software LS-DYNA is used to simulate single abrasive particle of rock erosion ...
Junqing Meng, Qingen Wei, Yechao Ma
doaj   +1 more source

A Biologically‐Architected Wear and Damage‐Resistant Nanoparticle Coating From the Radular Teeth of Cryptochiton stelleri

Advanced Functional Materials, EarlyView.
The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang, Yu Chen, Ezra Sarmiento, Taige Hao, Atsushi Arakaki, Michiko Nemoto, Pablo Zavattieri, David Kisailus   +7 more
wiley   +1 more source

Damage of the Surface Layer Gears in Grinding Process. [PDF]

, 2013
The influence of the grinding process on the condition of the surface layer (SL) obtained by the treatment of the gear with grinding wheels Al2O3, CBN, GF, SG, alloy steels with different parameters of the grinding process and the type of cooling liquid –
Wlazło, Jakub, Wójcik, Ryszard
core  

Toughening β‐Ga2O3 via Mechanically Seeded Dislocations

Advanced Functional Materials, EarlyView.
β‐Ga2O3 is promising for next‐generation semiconductors but its brittleness limits flexible and high‐precision applications. Here, mechanically seeded dislocations introduced by surface deformation improved damage tolerance in (001) β‐Ga2O3. Nanoindentation and characterization show dislocations suppress cleavage cracks by enabling stable plastic ...
Zanlin Cheng, Jiawen Zhang, Peng Gao, Guosong Zeng, Xufei Fang, Wenjun Lu   +5 more
wiley   +1 more source

Study on the Abrasive Blasting Mechanism of Solder Welded 304V Wire in Vascular Intervention

Micromachines
The solder burrs on the 304V wire surface can easily scratch the vascular tissue during interventional treatment, resulting in complications such as medial tears, bleeding, dissection, and rupture.
Yao Liu, Shaobo Zhai, Jinzhu Guo, Shiling Fu, Bin Shen, Zhigang Zhao, Qingwei Ding   +6 more
doaj   +1 more source

Biomimetic Ion‐Orchestrated Hierarchical Armored Hydrogel Coating for Robust and Multifunctional Surface Protection

Advanced Functional Materials, EarlyView.
Inspired by the skin‐toughening mechanism of marine sponges, an ion‐orchestrated structural engineering strategy is proposed to regulate the surface microstructure of hydrogel coatings, enabling the in situ formation of a robust armor layer that enhances mechanical integrity and provides multifunctional protection by suppressing fouling attachment and ...
Wenshuai Yang, Ziqian Zhao, Weiyan Zhu, Lu Gong, Yongxiang Sun, Haoyu Yang, Ling Zhang, Wenfei Zhang, Hao Zhang, Fang Zhou, Xuwen Peng, Hongbo Zeng   +11 more
wiley   +1 more source

Evaluation of abrasive wear resistance of self-fluxing Ni-base coatings by scratch testing

, 2023
Corneliu Munteanu, Daniela Lucia Chicet, Bogdan Istrate, Marcelin Benchea, C. Paulin   +4 more
openalex   +1 more source

Fluoride‐Free Adhesives for Low Surface Energy Fluorinated Substrates

Advanced Functional Materials, EarlyView.
A universal, fluoride‐free adhesive achieves a record 4.91 MPa bond strength on PTFE by leveraging amine/amide dipole–dipole interactions, without fluorinated components. This sustainable strategy overcomes the environmental and performance limits of PFAS‐based adhesives, enabling robust, eco‐conscious bonding across diverse materials.
Siqi Zheng, Yifeng Sheng, Shiqian Tan, Yuxuan Sun, Linling Li, He Zhu, Qi Zhang, Shiping Zhu   +7 more
wiley   +1 more source