Shrinkage and Stability of Thermo-Mechanically Modified Aspen Wood

Milan Gaff, Miroslav Gašparík


This work presents dimensional and shape changes of aspen wood due to surface embossing. The influences of wood treatment, degree of pressing, and initial moisture content on the stability of wood were investigated. The stability of the wood was investigated through dimensional changes (volumetric and linear shrinkage) and shape changes (permanent deformations). The aspen wood was treated by steaming and radio frequency (RF) heating. The treatment did not have a significant effect on the moisture and shape stability of wood after pressing. The non-treated wood showed better stability after pressing.


Pressing; Shape stability; Volumetric shrinkage; Linear shrinkage; Aspen; Plastic deformations; Moisture; Moisture content

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