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Contacts:
Sergey Kolesnikov
Institute of Problems of Chemical Physics, RAS
Acad. Semenov av., 1 Chernogolovka, Moscow region
142432, Russia

Tel: +7 (49652) 241-25
Fax: +7 (49652) 494-72
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Participant information created on 2010-05-04 18:18:03, last modified on 2010-05-17 11:39:14

Title
Dr
Family name
Yakushev
First name
Vladislav
Gender
male
Affiliation for badge
IPCP
Institute
Institute of Problems of Chemical Physics RAS
Address (street)
Acad. Semenov av., 1
City
142432, Chernogolovka
Country
Russian Federation
Phone
+79032959212
Fax
+7(49652)49472
Arrival date
June 02, 2010
Departure date
June 04, 2010
Accomodation
I will find accomodation myself
Fee
Undecided
Authors
V.V. Yakushev A.V. Utkin
Institutes
IPCP RAS
Title
Phase transitions in porous materials under shock loading.
Abstract
The measure of the phase transition pressure at different temperatures under shock loading gives an important information about the material and its phase diagram. The simple way to increase the temperature under loading includes the use of porous samples. The transition pressure can be determined from registered two-wave structure shock profile with further measurement of the amplitude of the first wave. But with the increase of porosity to certain degree the two-wave structure can disappear. And it becomes impossible to measure the transition pressure from shock wave profile. Another method to determine the pressure is the registration of onset transition kink on the Hugoniot. The kink always exists when the phase transition takes place. It might be very small or invisiable because of error in pressure and specific volume (density) values. However with the proton radiography technique it might be possible to construct the Hugoniot with more accuracy by means of direct measuring of density and shock wave velocity and to detect the Hugoniot kink at specified high temperature.
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