Open AccessTemperature gradients in the laser‐heated diamond anvil cell
Author(s) -
Panero W. R.,
Jeanloz R.
Publication year - 2001
Publication title -
journal of geophysical research: solid earth
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/2000jb900423
Subject(s) - thermal conduction , materials science , thermal conductivity , diamond anvil cell , diamond , heat transfer , dielectric , laser , conductivity , mineralogy , thermodynamics , optics , high pressure , composite material , geology , chemistry , physics , optoelectronics
A semianalytic heat transfer model reproduces the temperature distributions measured inside the laser‐heated diamond cell and constrains the temperature dependence of the thermal conductivity of dielectric mineral samples at high pressures and temperatures. Both axial and radial heat conduction determine the observed temperature distributions obtained from the TEM00 (Gaussian) and TEM01 * laser modes. Measurements on the high‐pressure perovskite‐dominated assemblage of peridotite are consistent with the expected T −1 dependence of thermal conductivity at 45 GPa and temperatures between 1500 and 3800 K.