Microcracks occurring during drying visualized by confocal laser scanning microscopy

Hiroki Sakagami, Kosuke Tsuda, Junji Matsumura, Kazuyuki Oda

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The microcracks occurring during drying of wood were visualized under confocal laser scanning microscopy (CLSM). Precise control of relative humidity and temperature in a specialized environment chamber made it possible to acquire sequential images of the wood of Cryptomeria japonica during drying from the water-saturated condition. The images indicated that the microcracks occurred between tracheid and ray parenchyma in the latewood region and the crack tip advanced in both the bark and pith directions. Subsequently, the crack tip expanding towards the bark stopped at the earlywood region through the growth ring boundary. The other tip toward the pith stopped at the earlywood region before reaching the growth ring boundary. Our technique made it possible to generate microcracks and discuss the relationship between moisture content and microcrack formation during drying. We found the CLSM technique to be an effective method for visualizing microcrack propagation with time.

Original languageEnglish
Pages (from-to)179-187
Number of pages9
JournalIAWA Journal
Volume30
Issue number2
DOIs
Publication statusPublished - Jan 1 2009

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microcrack
confocal laser scanning microscopy
microscopy
earlywood
laser
drying
pith
growth rings
bark
wood drying
saturated conditions
latewood
Cryptomeria japonica
crack
parenchyma (plant tissue)
relative humidity
methodology
water content
moisture content
temperature

All Science Journal Classification (ASJC) codes

  • Plant Science

Cite this

Microcracks occurring during drying visualized by confocal laser scanning microscopy. / Sakagami, Hiroki; Tsuda, Kosuke; Matsumura, Junji; Oda, Kazuyuki.

In: IAWA Journal, Vol. 30, No. 2, 01.01.2009, p. 179-187.

Research output: Contribution to journalArticle

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