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Advances in graphene reinforced metal matrix nanocomposites:Mechanisms,processing,modelling,properties and applications

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Nanotechnology and Precision Engineering 2020年第4期3卷 189-210页

作者： Wenge Chen Tao Yang Longlong Dong ahmed elmasry Jiulong Song Nan Deng ahmed Elmarakbi Terence Liu Hai Bao Lv Yong Qing Fu School of Materials Science and Engineering Xi'an University of TechnologyXi'an 710048PR China Advanced Materials Research Central Northwest Institute for Nonferrous Metal ResearchXi'an 710016PR China School of Materials Science and Engineering Northeastern UniversityShengyang 110819PR China Faculty of Engineering and Environment Northumbria UniversityNewcastle upon Tyne NE18STUK School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083PR China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150080China

Graphene has been extensively explored to enhance functional and mechanical properties of metalmatrix nanocomposites for wide-range applications due to their superior mechanical,electrical and thermal *** article discusses recent advances of key mechanisms,synthesis,manufacture,modelling and applications of graphene metal matrix *** main strengthening mechanisms include load transfer,Orowan cycle,thermal mismatch,and refinement *** technologies are discussed including some conventional methods(such as liquid metallurgy,powdermetallurgy,thermal spraying and deposition technology)and some advanced processing methods(such as molecular-level mixing and friction stir processing).Analytical modelling(including phenomenological models,semi-empirical models,homogenization models,and self-consistent model)and numerical simulations(including finite elements method,finite difference method,and boundary element method)have been discussed for understanding the interface bonding and performance characteristics between graphene and different metal matrices(Al,Cu,Mg,Ni).Key challenges in applying graphene as a reinforcing component for the metal matrix composites and the potential solutions as well as prospectives of future development and opportunities are highlighted.

关键词： Graphene Metal matrix composites Strengthening mechanism Synthesis method Modelling

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Vascularization is the next challenge for skin tissue engineering as a solution for burn management

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Burns & Trauma 2020年第1期8卷 174-185页

作者： Hady Shahin Moustafa elmasry Ingrid Steinvall Folke Soerg ahmed El-Serafi Department of Hand Surgery and Plastic Surgery and Burns Linkoing University Hospital58185LinkoingOtergolandSweden The Department of Biomedical and Clinical Sciences Linkoing UniversityLinkoing University Hospital58183LinkoingOtergolandSweden Faculty of Biotechnology MSA University26 July Mehwar Road125856th October City.Egypt

Skin regeneration represents a promising line of management for patients with skin loss,including burn *** current approach of spraying single cells over the defective areas results in variable success rates in different *** modern approach is to synthesize a multilayer skin construct that is based on autologous stem *** of the main complications with different types of transplants is sloughing due to the absence of proper *** proper vascularization will be crucial for the integration of skin constructs with the surrounding *** of the right cells with scaffolds of proper physico-chemical properties,vascularization can be markedly *** material effect,pore size and adsorption of certain proteins,as well as the application of appropriate growth factors,such as vascular endothelial growth factors,can have an additive effect.A selection of the most effective protocols is discussed in this review.

关键词： Burn Skin Regeneration Tissue engineering Vascularization

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