Measurement of fibre-fibre contact in three-dimensional images of fibrous materials obtained from X-ray synchrotron microtomography

被引：16
作者：
Malmberg, F. [2 ]
Lindblad, J. [2 ]
Ostlund, C. [2 ,3 ]
Almgren, K. M. [3 ,4 ]
Gamstedt, E. K. [1 ,3 ]
机构：
[1] Uppsala Univ, Dept Engn Sci, SE-75121 Uppsala, Sweden
[2] Swedish Univ Agr Sci, Ctr Image Anal, SE-75105 Uppsala, Sweden
[3] Innventia AB, SE-11486 Stockholm, Sweden
[4] KTH Royal Inst Technol, Sch Engn Sci, Dept Solid Mech, SE-10044 Stockholm, Sweden
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 637卷 / 01期
关键词：
Image analysis; X-ray microtomography; Synchrotron radiation; Fibre-fibre contact; Relative bonded area; Composites; Paper; PAPER; STRENGTH;
D O I：
10.1016/j.nima.2011.01.080
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
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.
引用
收藏
页码：143 / 148
页数：6
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