Results 61 to 70 of about 623,573 (324)

Study on the Tribological Behavior of Wear and Friction Coefficient on AISI M35 High-Speed Steel with and without DLC Coating

Materials Research, 2021
To improve the wear resistance of cutting tools made of high-speed steel, the Diamond-Like Carbon (DLC) coating appears as a promising alternative. There are several methods to assess wear, however, it is a challenge for manufacturing engineering to work
Paulo Sérgio Martins, José Rubens Gonçalves Carneiro, Elhadji Cheikh Talibouya Ba, Vitor Ferreira Vieira, Diego Boaventura Amaral, Nilson Cristino da Cruz   +5 more
doaj   +1 more source

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

Advanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo, Marius Didziokas, Malene Siri Berg Jacobsen, Thorbjørn Erik Køppen Christensen, Innokenty Kantor, Mads Ry Vogel Jørgensen, Klaus Pagh Almtoft, Jesper Skovhus Thomsen, Anthony Herrel, Catherine J.A. Williams, Henrik Birkedal   +10 more
wiley   +1 more source

Investigating the correlation between Nanoindentation and Vickers hardness of Ti6Al4V, pure copper and AISI316 stainless steel

Wasit Journal of Engineering Sciences
Nano-indentation test is the most popular hardness testing method because it can correlate to other materials' mechanical properties and is used in a narrow area or for materials with plastic deformation resistance that Vickers hardness cannot represent.
Ammar Dawood Ghali Al-Rubaye, Muhaed Sadiq Alali, Righdan Mohsen Namus   +2 more
doaj   +1 more source

Comparison of mechanical properties of C-S-H and portlandite between nano-indentation experiments and a modeling approach using various simulation techniques

Composites Part B: Engineering, 2018
This work focuses on elastic modulus of two main constituents of cement based materials: portlandite (CH) and Calcium Silicates Hydrates (C-S-H).
Jia Fu, S. Kamali-Bernard, F. Bernard, M. Cornen   +3 more
semanticscholar   +1 more source

Fluorine‐Free Soft Nanocomposites for High‐Speed Liquid Impact Repellence

Advanced Functional Materials, EarlyView.
Fluorine‐free soft nanocomposite coatings are developed using silicone oil‐mediated mechanical‐stiffness control, enabling ‘dry’ liquid‐repellent surfaces that resist high‐speed water jet impacts up to ∼60 m/s. By tuning nanoparticle loading and oil content, the coatings also achieve >90% optical transparency, amphiphobicity with impact resistance to ...
Priya Mandal, Vikramjeet Singh, Rohit Gupta, Prasenjit Kabi, Manish K. Tiwari   +4 more
wiley   +1 more source

Nano-hardness of Electron Beam Irradiated Polyamide 11

MATEC Web of Conferences, 2016
Cross-linking is a process in which polymer chains are associated through chemical bonds. Radiation, which penetrated through specimens and reacted with the cross-linking agent, gradually formed cross-linking (3D net), first in the surface layer and then
Ovsik Martin, Hylova Lenka, Manas David, Manas Miroslav, Stanek Michal   +4 more
doaj   +1 more source

Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing

Advanced Functional Materials, EarlyView.
Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu, Ming Lei, Yuanzhe Liang, Biao Qi, Ziyi Dai, Yong Zhao, Bingpu Zhou   +6 more
wiley   +1 more source

Research on the micro-scale method for testing the mechanical anisotropy of shale

Dizhi lixue xuebao, 2021
The mechanical anisotropy of shale is an important basic parameter for the study of in-situ stress, sidewall stability and hydraulic fracture propagation.
JIA Suogang, WAN Youyu, WANG Qian, LIU Shiduo, LIU Youming, WANG Zhicheng, YE Yu, QI Chunyan   +7 more
doaj   +1 more source

Mechanoregulatory Effects of Cell‐Scale Microwells on Epithelial Cell Phenotype

Advanced Functional Materials, EarlyView.
In small polycaprolactone microwells, A549 epithelial cells span well edges, in contrast to cells growing on flat substrates. Focal adhesion sites (yellow) concentrate at topographic boundaries, while cytoskeletal tension (magenta stress fibers) is transmitted to the nucleus (blue), reducing nuclear sphericity.
Ruiwen He, Wang Sik Lee, Phattadon Yajan, Aaron Lee, Mauro Sousa de Almeida, Sandeep Keshavan, Jozef Adamcik, Céline Loussert‐Fonta, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +10 more
wiley   +1 more source

Simulation of the irradiation effect on hardness of Chinese HTGR A508-3 steels with CPFEM

Nuclear Engineering and Technology, 2019
Understanding the irradiation hardening effect of structural steels under various irradiation conditions plays an important role in developing advanced nuclear systems. Such being the case, a crystal plasticity model for body-centered cubic (BCC) crystal
Junfeng Nie, Pandong Lin, Yunpeng Liu, Haiquan Zhang, Xin Wang   +4 more
doaj   +1 more source