A preliminary study on ultrasonic treatment effect on transverse wood permeability

• Autores: Takashi Tanaka, Stavros Avramidis, Satoshi Shida
• Localización: Maderas: Ciencia y tecnología, ISSN 0717-3644, ISSN-e 0718-221X, Vol. 12, Nº. 1, 2010, págs. 3-9
• Idioma: inglés
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• Resumen

  • 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.