Burchard diamond anvil cell
Experiments using diamond anvil cells (DAC) do not allow a very precise determination of the pressure and temperature parameters, more especially in the case of hydrothermal DAC such as Bassett type at high temperatures.
Therefore, we are working on a new kind of cell: the “intelligent” DAC (Burchard & al, Rev. Sci. Instr. 74, 2003, Figure 1) in collaboration with the Ruhr Universität Bochum, Germany.
In this cell, diamonds are modified in order to become pressure and temperature sensors. Therefore a piezoelectric structure is implanted below the diamond culets (Figure 2) using a particle accelerator (ARAMIS, CSNSM, IN2P3, Orsay, and Ruhr Universität Bochum, Germany).
Pressure and temperature calibrations are now under progress.
Diamond culet (1 mm in size) including pressure and temperature sensor. These are two boron layers implanted at different depths just below the culet.
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Physics and chemistry for life sciences and the environment › Environmental chemistry and pollution control (Earth science) Physics and chemistry for life sciences and the environment › Chimie environnementale et dépollution / Environmental chemistry and depollution
