TITLE

Optoacoustic measurements of the porosity of paper samples with foxings

AUTHOR(S)
Balakhnina, I. A.; Brandt, N. N.; Chikishev, A. Yu.; Pelivanov, I. M.; Rebrikova, N. L.
PUB. DATE
October 2012
SOURCE
Applied Physics Letters;10/22/2012, Vol. 101 Issue 17, p174101
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The goal of this work is to investigate the porosity of old paper with foxings. Initially, paper samples are characterized using the conventional absorption and Fourier transform infrared spectroscopies. Optoacoustic method based on laser excitation of short ultrasound transients is used for porosity measurements. The paper porosity is calculated using the theory of two-component mixture with the experimentally determined sound speeds in paper samples saturated with liquids. An increase in the porosity in foxing stains on paper in comparison with the foxing-free fragments is clearly demonstrated.
ACCESSION #
90260176

 

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