JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Dimensional Change of Carbonized Woods at Low Temperatures
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Dimensional Change of Carbonized Woods at Low Temperatures
Kwon, Sung-Min; Jang, Jae-Hyuk; Kim, Nam-Hun;
  PDF(new window)
 Abstract
To understand transition characteristics from wood to charcoal the dimensional changes of carbonized woods at low temperature from to at the intervals of were investigated. Three species of hardwoods and two species of softwoods were used in this study. Measurements of dimensional changes of cells were observed by stereoscopic microscope and an image analyzer. The apparent volume of each specimen decreased greatly with increasing temperature. Severe cracks and collapse were observed frequently in hardwoods and hardly in softwoods. Vessel diameter and tracheid cell wall thickness of the wood samples were decreased with increasing carbonization temperature. Contraction of vessel diameter in tangential direction was greater than that in radial direction. Cell wall thickness of tracheids decreased with increasing carbonization temperature. Consequently, even though it was small range of carbonization temperature, dimensions of wood components were changed considerably.
 Keywords
charcoal;carbonized wood;carbonization;cell wall thickness;dimensional change;vessel diameter;
 Language
English
 Cited by
 References
1.
Beall FC, Blankenhorn PR, Moore GR. 1974. Carbonized wood--physical properties and use as an SEM preparation. Wood Sci 6: 212-219.

2.
Cutter BE, Cumbie BG, McGinnes EA Jr. 1980. SEM and shrinkage analyses of Southern Pine wood following pyrolysis. Wood Sci Technol 14: 115-130. crossref(new window)

3.
Hata T, Imamura Y, Kobayashi E, Yamane K, Kikuchi K. 2000. Onion-like graphitic particles observed in wood charcoal. J Wood Sci 46: 89-92. crossref(new window)

4.
Hata T, Yamane K, Emiko Kobayashi, Yuji Imamura, Shigehisa Ishihara. 1998. Microstructural investigation of wood charcoal made by spark plasma sintering. J Wood Sci 44: 332-334. crossref(new window)

5.
Ishimaru K, Hata T, Bronsveld P, Imamura Y. 2007a. Microstructural study of carbonized wood after cell wall sectioning. J Mater Sci 42: 2662-2668. crossref(new window)

6.
Ishimaru K, Hata T, Bronsveld P, Nishizawa T, Imamura Y. 2007b. Characterization of sp2- and sp3-bonded carbon in wood charcoal. J Wood Sci 53: 442-448. crossref(new window)

7.
Kim NH, Hanna RB. 2006. Morphological characteristics of Quercus variabilis charcoal prepared at different temperatures. Wood Sci Technol 40: 392-401. crossref(new window)

8.
Kumar M, Gupta RC, Sharma T. 1992. Effects of carbonisation conditions on the yield and chemical composition of Acacia and Eucalyptus wood chars. Biomass Bioenerg 3: 411-417. crossref(new window)

9.
Kumar M, Gupta RC. 1995. Scanning electron microscopic study of acacia and eucalyptus wood chars. J Mater Sci 15: 544-551.

10.
Kwon SM, Kim NH, Cha DS. 2009. An investigation on the transition characteristics of the wood cell walls during carbonization. Wood Sci Technol 43: 487-498. crossref(new window)

11.
Kwon SM, Kim NH. 2006. Investigation of carbonization mechanism of wood(I). J Korean Wood Sci Technol 34: 8-14.

12.
Kim NH, Kwon SM. 2007. Investigation of carbonization mechanism of wood (II). J Korean Wood Sci Technol 35: 45-52.

13.
Kwon SM, Kwon GJ, Jang JH, Kim NH. 2012. Characteristics of charcoal in different carbonization temperatures. J For Sci 28: 263-267.

14.
McGinnes EA Jr., Kandeel SA, Szopa PS. 1971. Some structural changes observed in the transformation of wood into charcoal. Wood Fiber Sci 3: 77-83.

15.
Prior J, Gasson P. 1993. Anatomical changes on charring six african hardwoods. IAWA Journal 14: 77-86. crossref(new window)

16.
Pulido-Novicio L, Hata T, Kurimoto Y, Doi S, Ishihara S, Imamura Y. 2001. Adsorption capacities and related characteristics of wood charcoals carbonized using a one-step or two-step process. J Wood Sci 47: 48-57. crossref(new window)

17.
Saito Y, Arima T. 2007. Features of vapor-grown cone-shaped graphitic whiskers deposited in the cavities of wood cells. Carbon 45: 248-255. crossref(new window)

18.
Slocum DH, McGinnes EA Jr, Beall FC. 1978. Charcoal yield, shrinkage, and density changes during carbonization of oak and hickory woods. Wood Sci 11: 42-47.

19.
Zeriouh A, Belkbir L. 1995. Thermal decomposition of a Moroccan wood under a nitrogen atmosphere. Thermochimica Acta 258: 243-248. crossref(new window)