Malmberg, Filip
- Centre for Image Analysis, Swedish University of Agricultural Sciences
Abstract
A series of wood-fibre mats was investigated using high-resolution phase-contrast microtomography at the beamline ID 19 of the European Synchrotron Radiation Facility in Grenoble, France. A method for data reduction to quantify the degree of fibre-fibre contact has been derived. The degree of fibre-fibre contact and bonding plays a fundamental role in the mechanical properties of cellulose-fibre mats, paper materials and cellulose-fibre composites. The proposed computerised automated method consists of two parts. First, fibre lumens are segmented using a watershed based method. This information is then used to identify fibre-fibre contacts in projections along the z-axis of the material. The method is tested on microtomographic images of mats made of wood pulp fibres, and is shown to successfully detect differences in the amount of fibre-fibre contact between samples. The degree of fibre-fibre contact correlates well with measured out-of-plane strength of the fibrous material. (C) 2011 Elsevier B.V. All rights reserved.
Keywords
Image analysis; X-ray microtomography; Synchrotron radiation; Fibre-fibre contact; Relative bonded area; Composites; Paper
Published in
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
2011, volume: 637, number: 1, pages: 143-148
Publisher: ELSEVIER SCIENCE BV
SLU Authors
Lindblad, Joakim
- Centre for Image Analysis, Swedish University of Agricultural Sciences
- Centre for Image Analysis, Swedish University of Agricultural Sciences
Östlund, Catherine
- Centre for Image Analysis, Swedish University of Agricultural Sciences
- Centre for Image Analysis, Swedish University of Agricultural Sciences
UKÄ Subject classification
Atom and Molecular Physics and Optics
Other Physics Topics
Publication identifier
- DOI: https://doi.org/10.1016/j.nima.2011.01.080
Permanent link to this page (URI)
https://res.slu.se/id/publ/46880