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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Su, Bo
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024Nanotextured titanium inhibits bacterial activity and supports cell growth on 2D and 3D substrate: A co-culture study.citations
- 2023Bio-inspired nacre-like zirconia/PMMA composites for chairside CAD/CAM dental restorationscitations
- 2022Supramolecular Protein Stabilization with Zwitterionic Polypeptide-Cucurbit[7]uril Conjugates.citations
- 2021Friction at nanopillared polymer surfaces beyond Amontons' laws:Stick-slip amplitude coefficient (SSAC) and multiparametric nanotribological propertiescitations
- 2021Friction at nanopillared polymer surfaces beyond Amontons' lawscitations
- 2020Chondroinduction of Mesenchymal Stem Cells on Cellulose-Silk Composite nanofibrous Substratescitations
- 2020Chondroinduction of Mesenchymal Stem Cells on Cellulose-Silk Composite nanofibrous Substrates:The Role of Substrate Elasticitycitations
- 2020Characterisation of mechanical and surface properties of novel biomimetic interpenetrating alumina-polycarbonate composite materialscitations
- 2018Bi-directional freeze casting of porous alumina ceramics:a study of the effects of different processing parameters on microstructurecitations
- 2018Fabrication and characterisation of a novel biomimetic anisotropic ceramic/polymer-infiltrated composite materialcitations
- 2018Bi-directional freeze casting of porous alumina ceramicscitations
- 2018Bi-directional freeze casting of porous alumina ceramics: A study of the effects of different processing parameters on microstructurecitations
- 2018Harnessing nanotopography to enhance osseointegration of clinical orthopedic titanium implants-an in vitro and in vivo analysiscitations
- 2017Towards the cell-instructive bactericidal substrate: exploring the combination of nanotopographical features and integrin selective synthetic ligandscitations
- 2017Macroscale and Nanoscale Morphology Evolution during in Situ Spray Coating of Titania Films for Perovskite Solar Cellscitations
- 2017Pore size control of block copolymer-templated sol–gel-synthesized titania films deposited via spray coatingcitations
- 2016Bactericidal nanospike surfaces via thermal oxidation of Ti alloy substratescitations
- 2015Effect of Blend Composition and Additives on the Morphology of PCPDTBT:PC 71 BM Thin Films for Organic Photovoltaicscitations
- 2015Development of the Morphology during Functional Stack Build-up of P3HT:PCBM Bulk Heterojunction Solar Cells with Inverted Geometrycitations
- 2015Arrangement of Maghemite Nanoparticles via Wet Chemical Self-Assembly in PS- b -PNIPAM Diblock Copolymer Filmscitations
- 2014Tailoring titania nanostructures for solar cell applications
- 2014Self-Assembly of Diblock Copolymer–Maghemite Nanoparticle Hybrid Thin Filmscitations
- 2013Critical issues in near net shape forming via green machining of ceramics: A case study of alumina dental crowncitations
- 2013Fabrication and characterization of biomimetic ceramic/polymer composite materials for dental restorationcitations
- 2012Tailored graded pore structure in zirconia toughened alumina ceramics using double-side cooling freeze castingcitations
- 2007Biomimetic apatite/polycaprolactone (PCL) nanofibres for bone tissue engineering scaffolds
- 2006Spatial distribution of polarization and space charge in barium strontium titanate ceramicscitations
- 2006Manufacture and characterization of high activity piezoelectric fibrescitations
- 2004High frequency thick film BST ferroeclectric phase shiftercitations
Places of action
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article
Characterisation of mechanical and surface properties of novel biomimetic interpenetrating alumina-polycarbonate composite materials
Abstract
Objective. To determine the mechanical and surface characteristics of two novel biomimetic interpenetrating phase alumina-polycarbonate (Al₂O₃-PC) composite materials, comprising aligned honeycomb-like porous ceramic preforms infiltrated with polycarbonate polymer. Method. Two composite materials were produced and characterised. Each comprised a porous structure with a ceramic-rich (polymer-poor) top layer, graduated through to a more porous ceramic-poor (polymer-rich) bottom layer. In addition, pure polycarbonate and dense alumina specimens were subjected to the same characterisation namely: density, compression, three-point bend, hardness, surface loss and surface roughness testing. Scanning electron microscopy and micro computerised tomography were employed for structural examination. Results. Three-dimensional aligned honeycomb-like ceramic structures were produced and full interpenetration of the polymer phase was observed usingMicroCT. Depending on the ceramic volume in the initial aqueous ceramic suspension, the density of the final interpenetrating composites ranged from 2.64 to 3.01 g/cm3 , compressive strength ranged from 192.43 to 274.91 MPa, flexural strength from 105.54 to 148.47 MPa, fracture toughness from 2.17 to 3.11 MPa.m½, hardness from0.82 to 1.52 GPa, surface loss from 0.71 to 1.40 µm and surface roughness, following tooth brushing, from 0.70 to 0.99µm. Composite specimens showed characteristic properties part way between enamel and polycarbonate. Significance. There was a correlation between the initial solid ceramic loading in the aqueous suspension, used to produce the porous ceramic scaffolds, and the subsequent characteristic properties of the composite materials. These novel composites show potential as aesthetic orthodontic bracket materials, as their properties fit part way between those of ceramic, enamel and polycarbonate.<br/>