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Article

Investigation of Acoustic Wave Velocity in Samples of Thermally Expanded Graphite

Bogdan, O. P., Zlobin, D. V., Tarasova, A. V.

Article language: Russian

Abstract. The paper presents the results of studying the acoustic wave velocity in sheets-billets made of thermally expanded graphite of different thickness and average density, obtained using the shadow acoustic method based on measuring the passage time of an acoustic pulse in a sample. Studies have shown that an increase in the density of the sample leads to an increase in the velocity of the acoustic wave in it. The influence of defects on the value of the average acoustic wave velocity is also shown, while less dense defects in samples lead to a decrease in velocity and vice versa. The error in measuring the acoustic wave velocity was 0.4-2.2 %.

Keywords: thermally expanded graphite, density, acoustic wave velocity, measurement, sheet-billet

Pages: 65–69Total pages: 5

Funding, support: Исследование выполнено при финансовой поддержке ФГБОУ ВО «ИжГТУ имени М. Т. Калашникова» в рамках научного проекта № ПАВ/20-90-17.

Original title: Исследование скорости акустической волны в образцах из терморасширенного графита

Authors: Богдан О. П., Злобин Д. В., Тарасова А. В.

Published in: Instrumentation Engineering in the XXI Century – 2020. Integration of Science, Education and Production: Proceedings of the XVI Russian National Scientific Conference (December 2–4, 2020, Izhevsk, Russian Federation)

Year of publication: 2020

Цитирование по ГОСТ 7.1-2003:GOST 7.1-2003 citation:
Bogdan, O. P., Zlobin, D. V., Tarasova, A. V. Investigation of acoustic wave velocity in samples of thermally expanded graphite // Instrumentation Engineering in the XXI Century – 2020. Integration of Science, Education and Production : Proceedings of the XVI Russian National Scientific Conference (December 2–4, 2020, Izhevsk, Russian Federation). – Izhevsk, Russia : Publishing House of Kalashnikov ISTU, 2020. – Pp. 65–69.

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