A diamond anvil cell with resistive heating for high pressure and high temperature x-ray diffraction and absorption studies.
In this paper we describe a prototype of a diamond anvil cell (DAC) for high pressure/high temperature studies. This DAC combines the use of a resistive oven of 250 W power in a very small volume, associated with special conical seats for Boehler-type diamond anvils in order to have a large angular acceptance. To protect the diamond anvils from burning and to avoid the oven oxidation, the heated DAC is enclosed in a vacuum chamber. The assemblage was used to study the melting curve of germanium at high pressure (up to 20 GPa) and high temperature (up to 1200 K) using x-ray diffraction and x-ray absorption spectroscopy.
Pasternak
Sebastien
S
European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble, Cedex, France.
Aquilanti
Giuliana
G
Pascarelli
Sakura
S
Poloni
Roberta
R
Canny
Bernard
B
Coulet
Marie-Vanessa
MV
Zhang
Lin
L
D015502:Absorptiometry, Photon; D001274:Atmospheric Pressure; D018130:Diamond / Q000737:chemistry*; D004867:Equipment Design; D005857:Germanium / Q000737:chemistry; D006361:Heating; D008422:Materials Testing / Q000379:methods; D055585:Physical Phenomena; D013816:Thermodynamics; D014961:X-Ray Diffraction
D005857:Germanium; D018130:Diamond