Author(s):

Vibha Sharma, Rajneesh Kumar, Bhupender Dutt, Heena and Rajesh Kumar Meena

Abstract: The attempt made to study the shrinkage and swelling (longitudinal, radial and tangential) of thermally modified wood of Toona ciliata at different temperatures (80, 120, 160 and 200°C) and durations (2, 4 and 6 hours) in vacuum oven. The maximum value of swelling in transverse plane (4.81%), radial plane (4.06%), tangential plane (4.81%) and volumetric swelling (17.76%) were recorded at control, while minimum value of swelling in longitudinal plane (0.57%), radial plane (2.72%), tangential plane (3.34%) and volumetric swelling (5.22%) were recorded at 200°C. Among different temperatures the maximum value of shrinkage in transverse plane (0.61%), radial plane (3.62%), tangential plane (3.84%) and volumetric shrinkage (8.49%) were recorded at control. While the minimum value of shrinkage in transverse plane (0.27%), radial plane (2.54%), tangential plane (2.69%), volumetric shrinkage (0.89%) were recorded at 200°C.

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