Microscopic investigation of defects in thermally compressed poplar wood panels

The combined effects of temperature and compression on the microstructure of solid-wood panels produced by Aspen (Populus tremula) wood were evaluated. Thermal compression was applied on aspen wood to increase the density for improving its physical and mechanical properties. The solid wood panels wi...

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Autores principales:	Dogu,Dilek, Bakir,Davut, Tuncer,F. Digdem, Tirak Hizal,Kamile, Unsal,Oner, Candan,Zeki
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2016
Materias:	Cellular failure poplar wood thermally compressed wood wood densification wood microstructure
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2016000200011
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spelling	oai:scielo:S0718-221X20160002000112016-05-13Microscopic investigation of defects in thermally compressed poplar wood panelsDogu,DilekBakir,DavutTuncer,F. DigdemTirak Hizal,KamileUnsal,OnerCandan,Zeki Cellular failure poplar wood thermally compressed wood wood densification wood microstructure The combined effects of temperature and compression on the microstructure of solid-wood panels produced by Aspen (Populus tremula) wood were evaluated. Thermal compression was applied on aspen wood to increase the density for improving its physical and mechanical properties. The solid wood panels with dimensions of 100 mm by 500 mm by 25 mm were hot-pressed by using a laboratory hot press at a temperature of either 150°C or 170°C and pressure of either 1MPa or 2 MPa, respectively, for 45 min. Changes in the microstructure were detected by using a light microscope. The microscopic investigations revealed that the wood exhibited much defects in the process conditions of 170ºC / 2 MPa, and the distribution of defects were not uniform in the growth rings of the wood specimens in the two treatment groups. All defects in cell structure were quite distinct in the beginning and the last parts of the growth rings and the largest damages occurred in the fibers and vessels for the two process conditions. The results indicate that growth ring structure, vessel porosity, and cell wall thickness have a strong effect on wood behavior in various process conditions.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.18 n.2 20162016-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2016000200011en10.4067/S0718-221X2016005000031
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cellular failure poplar wood thermally compressed wood wood densification wood microstructure
spellingShingle	Cellular failure poplar wood thermally compressed wood wood densification wood microstructure Dogu,Dilek Bakir,Davut Tuncer,F. Digdem Tirak Hizal,Kamile Unsal,Oner Candan,Zeki Microscopic investigation of defects in thermally compressed poplar wood panels
description	The combined effects of temperature and compression on the microstructure of solid-wood panels produced by Aspen (Populus tremula) wood were evaluated. Thermal compression was applied on aspen wood to increase the density for improving its physical and mechanical properties. The solid wood panels with dimensions of 100 mm by 500 mm by 25 mm were hot-pressed by using a laboratory hot press at a temperature of either 150°C or 170°C and pressure of either 1MPa or 2 MPa, respectively, for 45 min. Changes in the microstructure were detected by using a light microscope. The microscopic investigations revealed that the wood exhibited much defects in the process conditions of 170ºC / 2 MPa, and the distribution of defects were not uniform in the growth rings of the wood specimens in the two treatment groups. All defects in cell structure were quite distinct in the beginning and the last parts of the growth rings and the largest damages occurred in the fibers and vessels for the two process conditions. The results indicate that growth ring structure, vessel porosity, and cell wall thickness have a strong effect on wood behavior in various process conditions.
author	Dogu,Dilek Bakir,Davut Tuncer,F. Digdem Tirak Hizal,Kamile Unsal,Oner Candan,Zeki
author_facet	Dogu,Dilek Bakir,Davut Tuncer,F. Digdem Tirak Hizal,Kamile Unsal,Oner Candan,Zeki
author_sort	Dogu,Dilek
title	Microscopic investigation of defects in thermally compressed poplar wood panels
title_short	Microscopic investigation of defects in thermally compressed poplar wood panels
title_full	Microscopic investigation of defects in thermally compressed poplar wood panels
title_fullStr	Microscopic investigation of defects in thermally compressed poplar wood panels
title_full_unstemmed	Microscopic investigation of defects in thermally compressed poplar wood panels
title_sort	microscopic investigation of defects in thermally compressed poplar wood panels
publisher	Universidad del Bío-Bío
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2016000200011
work_keys_str_mv	AT dogudilek microscopicinvestigationofdefectsinthermallycompressedpoplarwoodpanels AT bakirdavut microscopicinvestigationofdefectsinthermallycompressedpoplarwoodpanels AT tuncerfdigdem microscopicinvestigationofdefectsinthermallycompressedpoplarwoodpanels AT tirakhizalkamile microscopicinvestigationofdefectsinthermallycompressedpoplarwoodpanels AT unsaloner microscopicinvestigationofdefectsinthermallycompressedpoplarwoodpanels AT candanzeki microscopicinvestigationofdefectsinthermallycompressedpoplarwoodpanels
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Microscopic investigation of defects in thermally compressed poplar wood panels

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