Author | Search for: Langelaan, G.; Search for: Ryelandt, S.; Search for: Root, John1; Search for: Van Houtte, Paul |
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Affiliation | - National Research Council of Canada. NRC Canadian Neutron Beam Centre
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Format | Text, Article |
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Abstract | 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. |
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Publication date | 2007-02 |
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In | |
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NPARC number | 12327736 |
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Export citation | Export as RIS |
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Record identifier | a5102a53-f148-4e8c-a414-60dd9499fa08 |
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Record created | 2009-09-10 |
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Record modified | 2020-05-10 |
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