Journal
HIGH PRESSURE RESEARCH
Volume 29, Issue 2, Pages 317-324Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/08957950902941048
Keywords
CVD diamond anvil; high-pressure-high-temperature; hydrogen
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Funding
- DOE/NNSA (CDAC)
- NSF-EAR
- NSF-DMR
- Balzan Foundation
- Deborah Rose Foundation
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Composite diamond anvils have been developed for high-pressure/high-temperature measurements of diamond anvil cells. The anvils are fabricated using single-crystal chemical vapor deposition (CVD) from previously used and/or slightly damaged anvils made of natural or synthetic diamond. These composite anvils can be fabricated to possess optical characteristics at least comparable to conventional diamond anvils, whereas the single-crystal CVD portion is more durable because of its enhanced toughness relative to natural diamond. The viability of such anvils is demonstrated in measurements on hydrogen at megabar pressures and high temperature.
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