Official Journal of the Japan Wood Research Society
Table 2 Comparison of the effects of the thermal modification temperature using Duncan’s test on the L* change process
From: Impact of thermal modification on color and chemical changes of spruce and oak wood
Temperature (°C) | (1) 83.4 | (2) 76.4 | (3) 63.3 | (4) 39.0 | (5) 65.9 | (6) 52.4 | (7) 45.4 | (8) 31.0 | ||
|---|---|---|---|---|---|---|---|---|---|---|
1 | Spruce | 20 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | |
2 | 160 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | ||
3 | 180 | 0.000 | 0.000 | 0.000 | 0.009 | 0.000 | 0.000 | 0.000 | ||
4 | 210 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | ||
5 | Oak | 20 | 0.000 | 0.000 | 0.009 | 0.000 | 0.000 | 0.000 | 0.000 | |
6 | 160 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | ||
7 | 180 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | ||
8 | 210 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | ||