TY - JOUR
T1 - Large-volume multianvil cells designed for chemical synthesis at high pressures
AU - Stoyanov, Emil
AU - Haussermann, Ulrich
AU - Leinenweber, Kurt
N1 - Funding Information:
This research has been supported by the ACS Petroleum Research Fund and the National Science Foundation (NSF) under the grant nos. 45796-AC10 and DMR-0638826, respectively. Additionally, it was partially supported by COM-PRES, the Consortium for Materials Properties Research in Earth Sciences under NSF Cooperative Agreement EAR 06-49658. Portions of this work were performed at GeoSoilEnviroCARS (Sector 13), Advanced Photon Source (APS), Argonne National Laboratory. GeoSoilEnviroCARS is supported by the National Science Foundation-Earth Sciences (EAR-0217473), Department of Energy – Geosciences (DE-FG02-94ER14466) and the State of Illinois. Use of the APS was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. W-31-109-ENG-38.
PY - 2010/3
Y1 - 2010/3
N2 - Two multianvil cell assemblies with octahedral edge lengths (OEL) of 18 and 25mm have been developed, which allow sample volumes of up to 153 and 387mm3, respectively. Pressure calibrations were performed at room temperature and 1200C using quenched samples, and at variable temperature using in situ synchrotron measurements. These calibrations employed 25.4mm tungsten carbide anvils with a truncation edge length of 12mm for the 18mm OEL cell (18/12 configuration) and 15mm for the 25mm OEL cell (25/15 configuration) and yielded sample pressures of up to 10 and 7.5GPa, respectively, at loads approaching 800t. The measured thermal gradients at 1200C vary between 5-10C/mm (18/12) and 15-20C/mm (25/15). By combining large sample/reaction volumes with minimal thermal gradients, the new multianvil cell assemblies are especially useful for chemical synthesis at high-pressure, high-temperature conditions.
AB - Two multianvil cell assemblies with octahedral edge lengths (OEL) of 18 and 25mm have been developed, which allow sample volumes of up to 153 and 387mm3, respectively. Pressure calibrations were performed at room temperature and 1200C using quenched samples, and at variable temperature using in situ synchrotron measurements. These calibrations employed 25.4mm tungsten carbide anvils with a truncation edge length of 12mm for the 18mm OEL cell (18/12 configuration) and 15mm for the 25mm OEL cell (25/15 configuration) and yielded sample pressures of up to 10 and 7.5GPa, respectively, at loads approaching 800t. The measured thermal gradients at 1200C vary between 5-10C/mm (18/12) and 15-20C/mm (25/15). By combining large sample/reaction volumes with minimal thermal gradients, the new multianvil cell assemblies are especially useful for chemical synthesis at high-pressure, high-temperature conditions.
KW - High-pressure synthesis
KW - Large sample volumes
KW - Multianvil
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U2 - 10.1080/08957950903422444
DO - 10.1080/08957950903422444
M3 - Article
AN - SCOPUS:77950119300
SN - 0895-7959
VL - 30
SP - 175
EP - 189
JO - High Pressure Research
JF - High Pressure Research
IS - 1
ER -