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Int. J. Mol. Sci. 2008, 9(9), 1772-1783; doi:10.3390/ijms9091772
Article

The Effects of Heat Treatment on the Physical Properties and Surface Roughness of Turkish Hazel (Corylus colurna L.) Wood

1
, 1,* , 1
, 2
, 3
 and 1
1 Faculty of Forestry, Department of Forest Products Engineering, Duzce University, 81620, Duzce, Turkey 2 Faculty of Technical Education, Department of Furniture and Design, Duzce University, 81620, Duzce, Turkey 3 Faculty of Forestry, Department of Forest Products Engineering, Istanbul University, 34473, Bahcekoy, Sariyer, Turkey
* Author to whom correspondence should be addressed.
Received: 31 March 2008 / Revised: 11 July 2008 / Accepted: 5 September 2008 / Published: 16 September 2008
(This article belongs to the Section Bioinorganic Chemistry)
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Abstract

Heat treatment is often used to improve the dimensional stability of wood. In this study, the effects of heat treatment on the physical properties and surface roughness of Turkish Hazel (Corylus colurna L.) wood were examined. Samples obtained from Kastamonu Forest Enterprises, Turkey, were subjected to heat treatment at varying temperatures and for different durations. The physical properties of heat-treated and control samples were tested, and oven-dry density, air-dry density, and swelling properties were determined. A stylus method was employed to evaluate the surface characteristics of the samples. Roughness measurements, using the stylus method, wereb made in the direction perpendicular to the fiber. Four main roughness parameters, mean arithmetic deviation of profile (Ra), mean peak-to-valley height (Rz), root mean square roughness (Rq), and maximum roughness (Ry) obtained from the surface of wood were used to evaluate the effect of heat treatment on the surface characteristics of the specimens. Significant difference was determined (p = 0.05) between physical properties and surface roughness parameters (Ra,Rz, Ry, Rq) for three temperatures and three durations of heat treatment. The results showed that the values of density, swelling and surface roughness decreased with increasing temperature treatment and treatment times. Turkish Hazel wood could be utilized successfully by applying proper heat treatment techniques without any losses in investigated parameters. This is vital in areas, such as window frames, where working stability and surface smoothness are important factors.
Keywords: Turkish Hazel; Corylus colurna L.; heat treatment; physical properties; surface roughness Turkish Hazel; Corylus colurna L.; heat treatment; physical properties; surface roughness
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Korkut, D.S.; Korkut, S.; Bekar, I.; Budakçı, M.; Dilik, T.; Çakıcıer, N. The Effects of Heat Treatment on the Physical Properties and Surface Roughness of Turkish Hazel (Corylus colurna L.) Wood. Int. J. Mol. Sci. 2008, 9, 1772-1783.

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Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert