Microstructure of viscoelastic thermal compressed (VTC) wood using computed microtomography Public Deposited

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This is the author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Springer and can be found at:  http://link.springer.com/journal/226.

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  • The paper describes for the first time the analysis of the structure of compressed wood using computed tomography. The anatomical structures of Douglas-fir and hybrid poplar before and after densification with the Viscoelastic Thermal Compression (VTC) process were described by pore size distributions and mean pore sizes and compared. The compression of Douglas-fir mainly affected earlywood, while the compression of hybrid poplar mainly occurred in the vessels. In both wood species the densification resulted in a significant decrease in the pore volumes. The porosity decreased to less than the half of the original value for Douglas-fir earlywood and to approximately one quarter for the vessels in hybrid poplar. The relevant mean pore sizes also decreased dramatically down to about one quarter compared to the original values. In contrast, latewood in Douglas-fir and libriform fibers in hybrid poplar are quite stable under compression. Douglas-fir latewood retained its original structure after compression and did not show any reduction in pore size. The results confirmed that the anatomical structure of VTC densified wood can be described by pore size distributions and mean pore sizes. However, in the case of broad or bimodal distributions the mean pore sizes are of less significance.
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  • Standfest, G., Kutnar, A., Plank, B., Petutschnigg, A., Kamke, F. A., & Dunky, M. (2013) Microstructure of viscoelastic thermal compressed (VTC) wood using computed microtomography. Wood Science and Technology, 47 (1): 121-139.
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  • description.provenance : Made available in DSpace on 2013-03-05T21:49:15Z (GMT). No. of bitstreams: 1 KamkeFrederickForestryMicrostructureViscoelasticThermal.pdf: 939456 bytes, checksum: 81a50e37b0267c04bd6adbabac39ffc3 (MD5) Previous issue date: 2013-01
  • description.provenance : Approved for entry into archive by Deanne Bruner(deanne.bruner@oregonstate.edu) on 2013-03-05T21:49:15Z (GMT) No. of bitstreams: 1 KamkeFrederickForestryMicrostructureViscoelasticThermal.pdf: 939456 bytes, checksum: 81a50e37b0267c04bd6adbabac39ffc3 (MD5)
  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2013-03-05T19:50:30Z No. of bitstreams: 1 KamkeFrederickForestryMicrostructureViscoelasticThermal.pdf: 939456 bytes, checksum: 81a50e37b0267c04bd6adbabac39ffc3 (MD5)

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