Auteur | Rechercher : Langelaan, G.; Rechercher : Ryelandt, S.; Rechercher : Root, John1; Rechercher : Van Houtte, Paul |
---|
Affiliation | - Conseil national de recherches du Canada. Centre canadien de faisceaux de neutrons du CNRC
|
---|
Format | Texte, Article |
---|
Résumé | The orientation distribution or 'morphological texture function' (MTF) of the fibres is determined from measurements of the crystallographic texture of the fibres themselves. From neutron diffraction pole-figure measurements of the fibres in the composite and X-ray diffraction pole figures of the individual fibres, the MTF is determined by a deconvolution. To account for errors in the expansion coefficients due to measurement uncertainties, the deconvolution is performed simultaneously with a positivity criterion in the form of a set of linear equations which may be solved by a least-squares method. This approach is validated using a model system of AISI 316L stainless-steel fibres in an Al-13 wt% Si eutectic casting alloy. The fibres had been spun into yarns and subsequently woven to form a textile. The composite was made by infiltrating a 'brick' containing several layers of the textile with the Al alloy. The results of the deconvolution procedure show that the method indeed yields the expected morphological texture. The so-determined MTF is resolved to an angular resolution not attainable by other methods. It also provides a very good estimate of the volume fractions of the different texture components. |
---|
Date de publication | 2007-02 |
---|
Dans | |
---|
Numéro NPARC | 12327736 |
---|
Exporter la notice | Exporter en format RIS |
---|
Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
---|
Identificateur de l’enregistrement | a5102a53-f148-4e8c-a414-60dd9499fa08 |
---|
Enregistrement créé | 2009-09-10 |
---|
Enregistrement modifié | 2020-05-10 |
---|