[article]
| Titre : |
Characterizing high-tech composites by means of thermal analysis |
| Type de document : |
texte imprimé |
| Auteurs : |
Gabriele Kaiser, Auteur ; Stefan Schmölzer, Auteur ; Stephan Knappe, Auteur ; D. Rapp, Auteur ; M. Meyer, Auteur ; A. Lindemann, Auteur |
| Année de publication : |
2014 |
| Article en page(s) : |
p. 7-12 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse diélectrique
Analyse mécanique dynamique
Analyse thermique
Analyse thermomécanique
Composites à fibres de carbone
Thermogravimétrie
|
| Index. décimale : |
620.11 Matériaux (propriétés, résistance) |
| Résumé : |
Carbon fiber-reinforced plastics (CFRPs) are lighter than aluminum and stiffer than titanium. Due to these exceptional properties, carbon fiber-reinforced polymers are of common interest, especially in the transportation industry and manufacturing of sports goods. Some typical application areas here include aerospace engineering, the automotive industry, motor sports and cycle racing. Additionally, they are corrosion-resistant and can therefore also be exposed to harsh environments. They can also be found in the industrial sector as components for robot arms or pumps, for example.
CFRPs consist of a polymer matrix, usually a resin such as epoxy, and embedded reinforcing carbon fibers. Depending on the matrix material, the layout of the reinforcement and its proportion relative to the polymer, the physicochemical and mechanical properties of the composites can vary. For characterization of these properties, it is advantageous to have analysis techniques at hand. Thermal Analysis provides a variety of analytical methods which can be of service. In particular, Differential Scanning Calorimetry (DSC), Dielectric Analysis (DEA), Thermogravimetric Analysis (TGA), Thermomechanical Analysis (TMA), Dynamic-Mechanical Analysis (DMA) and Laser Flash Analysis (LFA) are ideal tools for investigating the curing behavior of the resin matrix or studying the entire composite.
This technical article gives an overview of the measurement techniques mentioned and describes how Thermal Analysis can help master tasks in research, development, quality control or failure analysis. |
| Note de contenu : |
- CURE MONITORING OF THE POLYMER MATRIX : DSC and DEA - Methods and instrumentation - Predicting the degree of conversion of reactive systems - Controlling the manufacturing process
- ANALYZING THE COMPOSITION OF THE COMPOSITE : Verifying the carbon content
- QUANTIFYING THERMAL EXPANSION DEPENDENCE ON FIBER ORIENTATION : TMA method and instrumentation - Unveiling the impact of the fiber direction of the CTE
- DETERMINATION OF THE VISCOELASTIC PROPERTIES OF COMPOSITES : DMA method and instrumentation
- DETERMINATION OF THERMAL DIFFUSIVITY AND THERMAL CONDUCTIVITY : Laser flash analysis (LFA) method and instrumentation - Dertermining the relationship between the fiber orientation and thermal diffusivity/thermal conductivity |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20479 |
in SAMPE JOURNAL > Vol. 50, N° 1 (01-02/2014) . - p. 7-12
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