Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Measurement of thermal conductivity in laser-heated diamond anvil cell using radial temperature distribution. / Bulatov, Kamil M.; Semenov, Alexander N.; Bykov, Alexey A. и др.
в: High Pressure Research, Том 40, № 3, 02.07.2020, стр. 315-324.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Measurement of thermal conductivity in laser-heated diamond anvil cell using radial temperature distribution
AU - Bulatov, Kamil M.
AU - Semenov, Alexander N.
AU - Bykov, Alexey A.
AU - Machikhin, Alexander S.
AU - Litasov, Konstantin D.
AU - Zinin, Pavel V.
AU - Rashchenko, Sergey V.
N1 - Publisher Copyright: © 2020 Informa UK Limited, trading as Taylor & Francis Group. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/7/2
Y1 - 2020/7/2
N2 - Thermal conductivities of planetary materials under extreme conditions are important input parameters for modeling planetary dynamics such as accretion, geodynamo and magnetic field evolution, plate tectonics, volcanism-related processes etc. However, direct experimental measurements of thermal conductivity at extreme conditions remain challenging and controversial. Here we propose a new technique of thermal conductivity measurement in laser-heated diamond anvil cell (LH-DAC) based on radial temperature distribution around laser focal spot, mapped by imaging tandem acousto-optical tunable filter (TAOTF). The new technique provides much more information about heat fluxes in the laser-heated sample than existing static heating setups, and does not require dynamic numerical modeling using heat capacities in contrast to dynamic pulsed heating setups. In the test experiment, thermal conductivity of γ-Fe at conditions relevant to cores of terrestrial planets was measured.
AB - Thermal conductivities of planetary materials under extreme conditions are important input parameters for modeling planetary dynamics such as accretion, geodynamo and magnetic field evolution, plate tectonics, volcanism-related processes etc. However, direct experimental measurements of thermal conductivity at extreme conditions remain challenging and controversial. Here we propose a new technique of thermal conductivity measurement in laser-heated diamond anvil cell (LH-DAC) based on radial temperature distribution around laser focal spot, mapped by imaging tandem acousto-optical tunable filter (TAOTF). The new technique provides much more information about heat fluxes in the laser-heated sample than existing static heating setups, and does not require dynamic numerical modeling using heat capacities in contrast to dynamic pulsed heating setups. In the test experiment, thermal conductivity of γ-Fe at conditions relevant to cores of terrestrial planets was measured.
KW - high pressure
KW - iron
KW - LH-DAC
KW - TAOTF
KW - Thermal conductivity
KW - SYSTEM
KW - REFRACTIVE-INDEX
KW - SURFACE
KW - IRON
KW - EARTHS CORE
UR - http://www.scopus.com/inward/record.url?scp=85085011661&partnerID=8YFLogxK
U2 - 10.1080/08957959.2020.1763334
DO - 10.1080/08957959.2020.1763334
M3 - Article
AN - SCOPUS:85085011661
VL - 40
SP - 315
EP - 324
JO - High Pressure Research
JF - High Pressure Research
SN - 0895-7959
IS - 3
ER -
ID: 24394685