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Browsing by Subject "Mechanical properties"

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    • Article  

      Atomic Force Microscopy Probing of Cancer Cells and Tumor Microenvironment Components 

      Stylianou, A.; Stylianopoulos, T. (2016)
      Cancer cells have different characteristics from normal cells in terms of morphology, cell–cell interactions, cytoskeleton organization, cell growth rates, and cell-extracellular matrix interactions. Although the clarification ...

    • Article  

      Biosourced amphiphilic degradable elastomers of poly(glycerol sebacate): Synthesis and network and oligomer characterization 

      Kafouris, Demetris; Kossivas, Fotis; Constantinides, Christakis; Nguyễn, Như Quỳnh; Wesdemiotis, Chrystostomos; Patrickios, Costas S. (2013)
      Glycerol (G, a triol) and sebacic acid (S, an α,ω-dicarboxylic acid) were condensed in the bulk to obtain poly(glycerol sebacate) (PGS) cross-linked elastomers which were characterized in terms of their swelling, thermal, ...

    • Article  

      Bisphosphonate-laden acrylic bone cement: Mechanical properties, elution performance, and in vivo activity 

      Yu, N. Y. C.; Ruys, A. J.; Zenios, Michalis; Godfrey, Craig; McDonald, Michelle; Kiely, Patrick; Mikulec, Kathy; Little, David G.; Schindeler, A. (2008)
      Cemented total hip replacements generally fail after 10-20 years, often due to implant loosening from bone resorption. Bisphosphonates such as zoledronic acid (ZA) and pamidronate (PAM) are potent inhibitors of bone ...

    • Article  

      Computational predictions of the tensile properties of electrospun fibre meshes: Effect of fibre diameter and fibre orientation 

      Barocas, V. Η; Stylianopoulos, T.; Bashur, C. A.; Goldstein, A. S.; Guelcher, S. A. (2008)
      The mechanical properties of biomaterial scaffolds are crucial for their efficacy in tissue engineering and regenerative medicine. At the microscopic scale, the scaffold must be sufficiently rigid to support cell adhesion, ...

    • Article  

      Deposition and characterisation of TiAlBN coatings produced by direct electron-beam evaporation of Ti and Ti-Al-B-N material from a twin crucible source 

      Rebholz, Claus; Leyland, A.; Matthews, A. (1999)
      TiAlBN coatings were synthesised by evaporating Ti and hot isostatically pressed TiAl0.68B3.67N2.44 material from a twin crucible source in an Ar plasma at 450°C. A combination of optical emission spectroscopy and partial ...

    • Article  

      Double Networks Based on Amphiphilic Cross-Linked Star Block Copolymer First Conetworks and Randomly Cross-Linked Hydrophilic Second Networks 

      Rikkou-Kalourkoti, Maria D.; Kitiri, E. N.; Patrickios, Costas S.; Leontidis, Epameinondas; Constantinou, Martha; Constantinides, G.; Zhang, X. K.; Papadakis, Christine M. (2016)
      This study presents the preparation and characterization of double networks (DN) based on a first amphiphilic polymethacrylate conetwork (APCN) and a second polyacrylamide network. The APCN first network comprised ...

    • Article  

      Double-networks based on pH-responsive, amphiphilic "core-first" star first polymer conetworks prepared by sequential RAFT polymerization 

      Kitiri, E. N.; Patrickios, C. S.; Voutouri, C.; Stylianopoulos, T.; Hoffmann, I.; Schweins, R.; Gradzielski, M. (2017)
      This manuscript presents the preparation and study of a new double-network hydrogel system, comprising an amphiphilic, pH-responsive first polymer conetwork synthesized via reversible addition-fragmentation chain transfer ...

    • Article  

      Double-networks based on pH-responsive, amphiphilic "core-first" star first polymer conetworks prepared by sequential RAFT polymerization 

      Kitiri, E. N.; Patrickios, Costas S.; Voutouri, Chrysovalantis; Stylianopoulos, Triantafyllos; Hoffmann, I.; Schweins, R.; Gradzielski, M. (2017)
      This manuscript presents the preparation and study of a new double-network hydrogel system, comprising an amphiphilic, pH-responsive first polymer conetwork synthesized via reversible addition-fragmentation chain transfer ...

    • Article  

      The effect of boron additions on the tribological behaviour of TiN coatings produced by electron-beam evaporative PVD 

      Rebholz, Claus; Leyland, A.; Larour, P.; Charitidis, C.; Logothetidis, S.; Matthews, A. (1999)
      TiN coatings containing small amounts of boron were synthesized by electron beam evaporating a Ti-B alloy material from a single crucible source into a plasma comprising Ar or an Ar/N2 mixture at a substrate temperature ...

    • Conference Object  

      Effect of Cu content on the tribological performance of Cr-N coatings at high temperatures (840°C) 

      Polychronopoulou, K.; Rebholz, Claus; Demas, N. G.; Polycarpou, A. A.; Gibson, P. N. (Affiliation: Department of Mechanical and Manufacturing Eng., University of Cyprus, Nicosia, CyprusAffiliation: Department of Mechanical Science and Eng., University of Illinois at Urbana-Champaign, Urbana, IL, United StatesAffiliation: Institute for Health and Consumer Protection, Joint Res. Centre of the European Commission, Ispra (VA), ItalyCorrespondence Address: Polychronopoulou, K.Department of Mechanical and Manufacturing Eng., University of Cyprus, Nicosia, Cyprus, 2010)
      Cr-N and Cu-Cr-N coatings with Cu content between 3-65 at.%, Cu/Cr ratios in the 0.04-4.5 range and 21-27 at.% N, synthesized by twin e-beam Physical Vapor Deposition (EBPVD) at 450°C, were investigated. Using X-ray ...

    • Article  

      Evaluating the microstructure and performance of nanocomposite PVD TiAlBN coatings 

      Baker, M. A.; Klose, S.; Rebholz, Claus; Leyland, A.; Matthews, A. (2002)
      Physical vapour deposition (PVD) TiAlBN coatings can exhibit excellent wear resistance, with optimised coating compositions demonstrating a 150% increase in lifetime compared to standard TiAlN coatings in wet-cutting drill ...

    • Article  

      Mechanical and tribological properties of hard aluminium-carbon multilayer films prepared by the Laser-Arc technique 

      Ziegele, H.; Rebholz, Claus; Scheibe, H. J.; Schultrich, B.; Matthews, A. (1998)
      The method of laser-induced vacuum arc (Laser-Arc) combines the good controllability of pulsed laser deposition with the high efficiency of a vacuum arc technique. One advantage of this technique is the reduction of droplets, ...

    • Article  

      Mechanical properties of structurally-defined magnetoactive polymer (co)networks 

      Mpekris, F.; Achilleos, M.; Vasile, E.; Vasile, E.; Krasia-Christoforou, T.; Stylianopoulos, T. (2015)
      The mechanical properties of structurally-defined magnetoactive polymer (co)networks synthesized from well-defined poly(2-dimethylamino)ethyl methacrylate (poly(DMAEMA)) homopolymers and diblock copolymers of poly(DMAEMA) ...

    • Article  

      Multilayer composite ceramic-metal-DLC coatings for sliding wear applications 

      Voevodin, A. A.; Schneider, J. M.; Rebholz, Claus; Matthews, A. (1996)
      The design of anti-friction coatings able to perform well in different wear conditions without lubricants requires a combination of adequate hardness and toughness, good adhesion, a low friction coefficient and a low wear ...

    • Article  

      Multiscale, structure-based modeling for the elastic mechanical behavior of arterial walls 

      Barocas, V. Η; Stylianopoulos, T. (2007)
      Passive elastic behavior of arterial wall remains difficult to model. Although phenomenological and structural models exist, the question of how the three-dimensional network structure of the collagen in the artery determines ...

    • Article  

      Nanostructure, mechanical and tribological properties of reactive magnetron sputtered TiCx coatings 

      Polychronopoulou, K.; Rebholz, Claus; Baker, M. A.; Theodorou, L.; Demas, N. G.; Hinder, S. J.; Polycarpou, A. A.; Doumanidis, C. C.; Böbel, K. (2008)
      This study describes the correlation between microstructure, mechanical and tribological properties of TiCx coatings (with x being in the range of 0-1.4), deposited by reactive magnetron sputtering from a Ti target in ...

    • Article  

      Semisolid metal processing: A new paradigm in automotive part design 

      Alexandrou, Andreas N.; Burgos, G. R.; Entov, V. M. (2000)
      Processing of metal alloys in their mushy state represents a new trend in metal processing. The process produces components with low porosity, high crack resistance along with fine microstructure and mechanical properties ...

    • Article  

      Structure and mechanical properties of low temperature magnetron sputtered nanocrystalline (nc-)Ti(N,C)/amorphous diamond like carbon (a-C:H) coatings 

      Tsotsos, C.; Baker, M. A.; Polychronopoulou, K.; Gibson, P. N.; Giannakopoulos, K.; Polycarpou, A. A.; Böbel, K.; Rebholz, Claus (2010)
      This paper reports on the structure and mechanical properties of 2μm thick nanocomposite (nc-) Ti(N,C)/amorphous diamond like carbon (a-C:H) coatings deposited on 100Cr6 steel substrates, using low temperature ( 200°C) DC ...

    • Article  

      Structure, hardness and mechanical properties of magnetron-sputtered titanium-aluminium boride films 

      Rebholz, Claus; Leyland, A.; Schneider, J. M.; Voevodin, A. A.; Matthews, A. (1999)
      TiAlB films nominally 2 μm thick were produced by simultaneous sputtering from TiAl and TiB2 targets onto Si-(110) and AISI316 stainless steel substrate materials at a temperature of 170°C. The influence of different B/Al ...

    • Article  

      Synthesis and characterization of robust double-networks based on end-linked, pH-responsive first networks 

      Kitiri, Elina N.; Rikkou-Kalourkoti, Maria D.; Sophocleous, Manolia; Patrickios, Costas S. (2015)
      Abstract Fragile, end-linked hydrophilic tertiary amine based methacrylate (first) networks were mechanically reinforced using the double-network principle, via the introduction of a polyacrylamide second network. Reinforcement ...

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