Optoacoustic Effects in Pentaerythritol Tetranitrate with Ultrafine Aluminum-Particle Inclusions under Pulsed-Laser Action


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Results of studying optoacoustic characteristics of pentaerythritol tetranitrate (PETN) specimens with inclusions of ultrafine aluminum particles (100 nm) are presented. Regularities of the increase of extinction coefficient kef and signal amplitude U on a piezodetector by increasing laser-pulse fluence H have been established. Estimates have been made, and it has been concluded that, during a laser pulse, heating of aluminum inclusions and a shell surrounding it occurs up to a gasification temperature and appear craters on a specimen’s surface appear at H > 0.1 J/cm2.

作者简介

B. Aduev

Institute of Coal Chemistry and Material Science, Siberian Branch

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Email: lesinko-iuxm@yandex.ru
俄罗斯联邦, Kemerovo, 650000

D. Nurmukhametov

Institute of Coal Chemistry and Material Science, Siberian Branch; Kemerovo State University

Email: lesinko-iuxm@yandex.ru
俄罗斯联邦, Kemerovo, 650000; Kemerovo, 650000

G. Belokurov

Institute of Coal Chemistry and Material Science, Siberian Branch

Email: lesinko-iuxm@yandex.ru
俄罗斯联邦, Kemerovo, 650000

N. Nelyubina

Institute of Coal Chemistry and Material Science, Siberian Branch

Email: lesinko-iuxm@yandex.ru
俄罗斯联邦, Kemerovo, 650000

A. Tupitsyn

Yurga Technological Institute

Email: lesinko-iuxm@yandex.ru
俄罗斯联邦, Yurga, 652057

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