Nanocrystalline diamond micro-anvil grown on single crystal diamond as a generator of ultra-high pressures | Zendy

Gopi Samudrala | Zendy; Samuel Moore | Zendy; Nenad Velisavljevic | Zendy; Georgiy Tsoi | Zendy; Paul A. Baker | Zendy; Yogesh K. Vohra | Zendy

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Nanocrystalline diamond micro-anvil grown on single crystal diamond as a generator of ultra-high pressures

Author(s) -

Gopi Samudrala,

Samuel Moore,

Nenad Velisavljevic,

Georgiy Tsoi,

Paul A. Baker,

Yogesh K. Vohra

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4964299

Subject(s) - diamond , chemical vapor deposition , materials science , diamond anvil cell , raman spectroscopy , material properties of diamond , x ray photoelectron spectroscopy , analytical chemistry (journal) , tungsten , nanocrystalline material , nanotechnology , metallurgy , chemistry , chemical engineering , optics , diffraction , engineering , physics , chromatography

By combining mask-less lithography and chemical vapor deposition (CVD) techniques, a novel two-stage diamond anvil has been fabricated. A nanocrystalline diamond (NCD) micro-anvil 30 μm in diameter was grown at the center of a [100]-oriented, diamond anvil by utilizing microwave plasma CVD method. The NCD micro-anvil has a diamond grain size of 115 nm and micro-focused Raman and X-ray Photoelectron spectroscopy analysis indicate sp3-bonded diamond content of 72%. These CVD grown NCD micro-anvils were tested in an opposed anvil configuration and the transition metals osmium and tungsten were compressed to high pressures of 264 GPa in a diamond anvil cell

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