Nanocrystalline diamond micro-anvil grown on single crystal diamond as a generator of ultra-high pressures
Nanocrystalline diamond micro-anvil grown on single crystal diamond as a generator of ultra-high pressures
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DOI：
10.1063/1.4964299
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发表时间：
2016-09-01
期刊：
影响因子：
1.6
通讯作者：
Vohra, Yogesh K.
中科院分区：
文献类型：
--
作者：
Samudrala, Gopi K.;Moore, Samuel L.;Vohra, Yogesh K.
结合无掩模光刻和化学气相沉积（CVD）技术，研制了一种新型的两级金刚石压砧。利用微波等离子体CVD法在[100]取向金刚石砧的中心生长了直径为30 μ m的纳米晶金刚石（NCD）微砧。NCD微顶锤的金刚石晶粒尺寸为115 nm，微聚焦拉曼和X射线光电子能谱分析表明sp（3）结合的金刚石含量为72%。这些CVD生长的NCD微砧在相对的砧构造中进行测试，并且过渡金属锇和钨在金刚石砧单元中被压缩到264 GPa的高压。(C)2016年作者。除非另有说明，否则所有文章内容均根据知识共享署名（CC BY）许可证（http：//creativecommons.org/licenses/by/4.0/）进行许可。
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 mu m 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 sp(3)-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. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).