@inproceedings{1fba3178d81d460abe7b2a8b0ca547bc,
title = "Study on attenuation, modulus of elasticity and nonlinearity in thermowood using ultrasound",
abstract = "We determined ultrasonically the attenuation, modulus of elasticity (MOE), and nonlinearity parameter (B/A) of dry defect-free thermally modified wood samples ({"}thick{"} 10 × 50 × 100 mm3 and {"}thin{"} 2 × 40 × 150 mm3) of Finnish pine, Pinus Sylvestris, as a function of treatment temperature (60-240 °C, three hours in protective water steam). The samples were cut as radial-tangential (RT) planes, and as longitudinal-radial (LR) planes. Two distinct regions of change in mechanical parameters were seen: one around 140 C where both the linear and nonlinear parameters increased and one around 230 C where the mechanical parameters decreased. These treatment temperatures thus serves as candidates for quality class delimiters for these soft wood samples.",
author = "E. H{\ae}ggstr{\"o}m and Anders Wallin and H. Hoffren and Tomi Hassinen and P. Viitaniemi",
year = "2005",
month = apr,
day = "9",
doi = "10.1063/1.1916848",
language = "English",
isbn = "978-0-7354-0245-4",
volume = "24A",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics (AIP)",
pages = "1500--1506",
editor = "Thompson, {Donald E.} and Chimenti, {Dale E.}",
booktitle = "Review of Progress in Quantitative Nondestructive Evaluation",
address = "United States",
note = "Review of Progress in Quantitative Nondestructive Evaluation ; Conference date: 25-07-2004 Through 30-07-2004",
}