Details
| Original language | English |
|---|---|
| Pages (from-to) | 19-22 |
| Number of pages | 4 |
| Journal | HOLZFORSCHUNG |
| Volume | 61 |
| Issue number | 1 |
| Publication status | Published - 12 Jan 2007 |
| Externally published | Yes |
Abstract
There is increasing awareness of the durability, dimensional stability, and strength properties of thermally modified timber products. Appropriate standards and test methods for industrial-scale quality control are needed. The aim of this study was to investigate the suitability of CIE L*a*b * color measurements for implementation in industrial quality control. Good linear correlation was found between a cumulated measure of L* and b* data and the heat treatment intensity for spruce (Picea abies Karst.), pine (Pinus sylvestris L.), and beech (Fagus sylvatica L.). Wood samples homogenized by milling revealed less variation in color values compared to wood surface measurements. Thus, measurements on milled wood are recommendable to obtain results with high statistical significance. Color measurements are rapid, precise, and highly reproducible. Based on the strong correlation between color data and heat-treatment intensities, color measurements could easily be implemented for quality control of thermally modified timber.
Keywords
- Color, Homogenization, Milling, Testing, Thermal modification
ASJC Scopus subject areas
- Materials Science(all)
- Biomaterials
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In: HOLZFORSCHUNG, Vol. 61, No. 1, 12.01.2007, p. 19-22.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Quality control of thermally modified timber
T2 - Interrelationship between heat treatment intensities and CIE L*a*b* color data on homogenized wood samples
AU - Brischke, Christian
AU - Welzbacher, Christian R.
AU - Brandt, Karin
AU - Rapp, Andreas Otto
PY - 2007/1/12
Y1 - 2007/1/12
N2 - There is increasing awareness of the durability, dimensional stability, and strength properties of thermally modified timber products. Appropriate standards and test methods for industrial-scale quality control are needed. The aim of this study was to investigate the suitability of CIE L*a*b * color measurements for implementation in industrial quality control. Good linear correlation was found between a cumulated measure of L* and b* data and the heat treatment intensity for spruce (Picea abies Karst.), pine (Pinus sylvestris L.), and beech (Fagus sylvatica L.). Wood samples homogenized by milling revealed less variation in color values compared to wood surface measurements. Thus, measurements on milled wood are recommendable to obtain results with high statistical significance. Color measurements are rapid, precise, and highly reproducible. Based on the strong correlation between color data and heat-treatment intensities, color measurements could easily be implemented for quality control of thermally modified timber.
AB - There is increasing awareness of the durability, dimensional stability, and strength properties of thermally modified timber products. Appropriate standards and test methods for industrial-scale quality control are needed. The aim of this study was to investigate the suitability of CIE L*a*b * color measurements for implementation in industrial quality control. Good linear correlation was found between a cumulated measure of L* and b* data and the heat treatment intensity for spruce (Picea abies Karst.), pine (Pinus sylvestris L.), and beech (Fagus sylvatica L.). Wood samples homogenized by milling revealed less variation in color values compared to wood surface measurements. Thus, measurements on milled wood are recommendable to obtain results with high statistical significance. Color measurements are rapid, precise, and highly reproducible. Based on the strong correlation between color data and heat-treatment intensities, color measurements could easily be implemented for quality control of thermally modified timber.
KW - Color
KW - Homogenization
KW - Milling
KW - Testing
KW - Thermal modification
UR - http://www.scopus.com/inward/record.url?scp=33846302454&partnerID=8YFLogxK
U2 - 10.1515/HF.2007.004
DO - 10.1515/HF.2007.004
M3 - Article
AN - SCOPUS:33846302454
VL - 61
SP - 19
EP - 22
JO - HOLZFORSCHUNG
JF - HOLZFORSCHUNG
SN - 0018-3830
IS - 1
ER -