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| Registros recuperados: 10 | |
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| FINISIE,MELLATIE R.; JOSUÉ,ATCHE; FÁVERE,VALFREDO T.; LARANJEIRA,MAURO C. M.. |
| Bioceramic composites were obtained from chitosan and hydroxyapatite pastes synthesized at physiological temperature according to two different syntheses approaches. Usual analytical techniques (X-ray diffraction analysis, Fourier transformed infrared spectroscopy, Thermo gravimetric analysis, Scanning electron microscopy, X-ray dispersive energy analysis and Porosimetry) were employed to characterize the resulting material. The aim of this investigation was to study the bioceramic properties of the pastes with non-decaying behavior from chitosan-hydroxyapatite composites. Chitosan, which also forms a water-insoluble gel in the presence of calcium ions, and has been reported to have pharmacologically beneficial effects on osteoconductivity, was added to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioceramic; Chitosan; Hydroxyapatite; Composites; Bone regeneration. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652001000400006 |
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| Cognard, Jean-yves; Sohier, Laurent; Davies, Peter; Gineste, Bernard. |
| The objective of this study is to define a reliable tool for dimensioning of adhesively bonded assemblies, particularly for marine and underwater applications. A modified “Arcan” fixture, suited for the study of the behavior of bonded metal-metal assemblies, was developed in order to focus on the analysis of the behavior of the adhesive in thin films. To analyze the kinematics of the deformation of the adhesive joint non-contact extensometry techniques were employed. Thus various characteristics of the non-linear behavior of the adhesive were observed. The first results obtained for mixed assemblies (steel, aluminium, composite substrates) show similar behaviour of the adhesive using the proposed procedure. Furthermore, quality controls by DSC, and studies... |
| Tipo: Text |
Palavras-chave: Ssemblages collés; Modélisation; Essais; Comportement non-linéaire; Composites; Adhesive bonding; Model; Tests; Non linear behaviour; Composite. |
| Ano: 2006 |
URL: https://archimer.ifremer.fr/doc/00480/59156/61785.pdf |
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| Le Duigou, A.; Davies, Peter; Baley, C.. |
| Natural fibre reinforced biopolymer composites, or biocomposites, are an alternative to the glass fibre reinforced thermoset composites widely used today in marine applications. Biocomposites offer good mechanical properties and total biodegradability, but if they are to be adopted for marine structures their durability in a seawater environment must be demonstrated. In the present study unreinforced PLLA (Poly(L-Lactic acid)), injected and film stacked flax composites with the same PLLA matrix have been examined. All the samples were aged in natural seawater at different temperatures in order to accelerate hygrothermal ageing. Changes to physico-chemical and mechanical behaviour have been followed by weight measurements, thermal and gel permeation... |
| Tipo: Text |
Palavras-chave: Mechanical properties; Hygrothermal ageing; Biopolymer; Natural fibre; Composites. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6639.pdf |
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| Registros recuperados: 10 | |
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