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M. S. M. Al-kahtani, Han Zhu, Yasser E. Ibrahim, S. I. Haruna and S. S. M. Al-qahtani
Polymer-modified cement mortar has been increasingly used as a runway/road pavement repair material due to its improved bending strength, bonding strength, and wear resistance. The flexural strength of polyurethane?cement mortar (PUCM) is critical in ach...
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Lamyaa Khaleel Hasan, Suaad Makki Jiaad, Khansaa Dawood Salman, Wisam Abed Kattea Al-Maliki, Falah Alobaid and Bernd Epple
Objective: The aim of the present work is to study the microstructure, wear behavior, physical properties, and micro-hardness of the aluminum matrix AA6061 reinforced with TiC and B4C nanoparticles with different concentrations of 2.5, 5, 7.5, 10, and 12...
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Natalia P. Prorokova, Tatyana Yu. Kumeeva and Igor V. Kholodkov
The paper presents a comparative analysis of the surface structure and morphology of hydrophobic coatings formed on a polyester fabric from various types of low molecular weight tetrafluoroethylenes by a new method. The low molecular weight compounds use...
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Rui Wang, Zexu Zhang, Xuqiu Bai, Zhichun Xu, Jun Zheng, Fei Pan and Caideng Yuan
For the UV?curable waterborne polyurethane acrylate (WPUA) emulsion, the free carboxylic groups in the molecular chains introduced by hydrophilic monomers are the inherent disadvantage. We prepared UV and aziridine dual?cured WPUA (UV/AZ?WPUA) emulsion t...
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Rui Dang, Liqiu Ma, Shengguo Zhou, Deng Pan and Bin Xia
Ultra-high molecular weight polythene (UHMWPE), with outstanding characteristics, is widely applied in modern industry, while it is also severely limited by its inherent shortcomings, which include low hardness, poor wear resistance, and easy wear. Imple...
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Stephanie L. Orstad, Lauren Gerchow, Nikhil R. Patel, Meghana Reddy, Christina Hernandez, Dawn K. Wilson and Melanie Jay
Despite the popularity of commercially available wearable activity monitors (WAMs), there is a paucity of consistent methodology for analyzing large amounts of accelerometer data from these devices. This multimethod study aimed to inform appropriate Fitb...
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Jeong Hwan Lee, Jun Cong Ge and Jun Hee Song
As contemporary emerging materials, fiber-reinforced plastics/polymers (FRP) are widely used in aerospace automotive industries and in other fields due to their high strength-to-weight ratio, high stiffness-to-weight ratio, high corrosion resistance, low...
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Sung-Jun Lee, Gang-Min Kim and Chang-Lae Kim
The purpose of this study is to improve the mechanical durability and surface frictional characteristics of polymer/ceramic-based composite materials. Polydimethylsiloxane (PDMS)/glass bubble (GB) composite specimens are prepared at various weight ratios...
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Lina Nunes, Eleonora Cintura, João L. Parracha, Bruno Fernandes, Vitor Silva and Paulina Faria
This article evaluates the relevant properties of cement-bonded particleboards (CBPB) made with a portion of maritime pine (Pinus pinaster) particles replaced with an agricultural waste, banana pseudostem (Musa sp.). The industrial production of CBPB was...
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Zuli Mao and Li Yang
We report the synthesis of SiC/Si3N4 coatings on carbon/carbon composites via pack cementation and heat treatment with nitrogen gas, the latter of which improves the coating wear resistance. X-ray diffraction (XRD), scanning electron microscopy (SEM), en...
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