A preliminary study on ultrasonic treatment effect on transverse wood permeability

oleh: Takashi Tanaka, Stavros Avramidis, Satoshi Shida

Format: Article
Diterbitkan: Universidad del Bío-Bío 2014-12-01

Deskripsi

Ultrasonic pre-treatment of small and pressure saturated Douglas-fir heartwood specimens at 20 kHz fixed frequency with an acoustic horn resulted in increased specific permeability coefficient in both radial and tangential directions. Statistical analysis revealed that there was a high correlation between ultrasonic treatment time and specific permeability coefficient. Improvement rate of permeability in both radial and tangential directions was nearly the same regardless of treatment time.