Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Holzforschung

International Journal of the Biology, Chemistry, Physics, and Technology of Wood

Editor-in-Chief: Faix, Oskar

Editorial Board Member: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Salmen, Lennart / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Burgert, Ingo / Rio, Jose C. / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Koch, Gerald / Lachenal, Dominique / Laine, Christiane / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Potthast, Antje / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Sipilä, Jussi / Takano, Toshiyuki / Tamminen, Tarja / Theliander, Hans / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi

12 Issues per year


IMPACT FACTOR 2016: 1.868
5-year IMPACT FACTOR: 1.875

CiteScore 2016: 1.83

SCImago Journal Rank (SJR) 2015: 0.817
Source Normalized Impact per Paper (SNIP) 2015: 0.954

Online
ISSN
1437-434X
See all formats and pricing
More options …
Volume 66, Issue 6 (Aug 2012)

Issues

Within-ring movement of free water in dehydrating Norway spruce sapwood visualized by neutron radiography

Sabine Rosner
  • Corresponding author
  • Institute of Botany, Department of Integrative Biology, University of Natural Resources and Applied Life Sciences, BOKU Vienna, Gregor Mendel-Str. 33, A-1180 Vienna, Austria
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Martin Riegler
  • Competence Centre for Wood Composites and Wood Chemistry, Altenberger Strasse 69, A-4040 Linz, Austria
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Peter Vontobel / David Mannes / Eberhard H. Lehmann / Bo Karlsson / Christian Hansmann
  • Competence Centre for Wood Composites and Wood Chemistry, Altenberger Strasse 69, A-4040 Linz, Austria
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2012-02-16 | DOI: https://doi.org/10.1515/hf-2011-0234

Abstract

This study is a first approach to visualize moisture distribution and movement between annual rings during sapwood drying by neutron imaging (NI). While Norway spruce [Picea abies (L.) Karst.] sapwood beams were allowed to dehydrate on a balance at ambient conditions, NI was performed in 1–10 min time steps. From NI raw files, radial dimensional changes were calculated during dehydration and transmission profiles were drawn for different relative moisture content (MC) steps from full saturation until equilibrium moisture content. The NI technique proved to be a useful tool to visualize the movement of free water within, and between, annual rings. Removal of free water in the middle part of the wood beam did not proceed continuously from the surface to the central part, but was strongly influenced by wood anatomy. Water is removed from earlywood during early stages of dehydration and later, at higher moisture loss (<50% MC), from the main latewood parts. It is therefore concluded that the radial dimensional changes measured at moderate moisture loss are not only caused by cell wall shrinkage of the outer wood parts located beneath the wood surface, but a result of elastic deformation of earlywood tracheids under the influence of negative hydrostatic pressures.

Keywords: image analysis; moisture movement; neutron radiography; Norway spruce; wood drying; wood shrinkage

About the article

Corresponding author. Institute of Botany, Department of Integrative Biology,University of Natural Resources and Applied Life Sciences,Vienna (BOKU), Gregor Mendel Str. 33, A-1180 Vienna, Austria Phone: +43 1 47654 3177 Fax: +43 1 47654 3180


Received: 2011-11-19

Accepted: 2012-01-23

Published Online: 2012-02-16

Published in Print: 2012-08-01


Citation Information: , ISSN (Online) 1437-434X, ISSN (Print) 0018-3830, DOI: https://doi.org/10.1515/hf-2011-0234.

Export Citation

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
Türker Dündar, Xiping Wang, Nusret As, and Erkan Avcı
Ultrasonics, 2016, Volume 66, Page 86
[2]
K. Solbrig, K. Frühwald, J.B. Ressel, D. Mannes, B. Schillinger, and M. Schulz
Physics Procedia, 2015, Volume 69, Page 583
[3]
S. J. Sanabria, C. Lanvermann, F. Michel, D. Mannes, and P. Niemz
Experimental Mechanics, 2015, Volume 55, Number 2, Page 403
[4]
S. Rosner, J. Světlík, K. Andreassen, I. Børja, L. Dalsgaard, R. Evans, B. Karlsson, M.M. Tollefsrud, and S. Solberg
Canadian Journal of Forest Research, 2014, Volume 44, Number 2, Page 154

Comments (0)

Please log in or register to comment.
Log in