Boron-doped diamond synthesized by chemical vapor deposition as a heating element in a multi-anvil apparatus

IF 1.2 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

High Pressure Research Pub Date : 2020-07-02 DOI:10.1080/08957959.2020.1789618

Longjian Xie, A. Yoneda, Zhaodong Liu, K. Nishida, T. Katsura

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引用次数: 2

Abstract

ABSTRACT We tested boron-doped diamond (BDD) synthesized by chemical vapor deposition (CVD) as a heating element in a multi-anvil apparatus. We succeeded in manufacturing BDD into a tubular shape by laser cutting and electric discharging machining. The BDD tube shaped by the electric discharging machining was contaminated by discharging electrode materials (Mo and W), which affected the heating performance. The laser-cut BDD tube has a clean surface and, therefore, had a good heating performance. We succeeded in generating temperature as high as 2670 K at a pressure around 30 GPa with laser-cut heater. Heating reproducibility was confirmed through repeated heating and cooling cycles. The recovered sample shows that a higher temperature generation above 2670 K was prevented by eutectic melting of ZrO2 thermal insulator and Al2O3 sample. Owing to the commercial availability with a reasonable price, CVD–BDD heaters are more practical than a high-pressure synthesized BDD heaters for wide applications.

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在多砧装置中用化学气相沉积法合成硼掺杂金刚石作为加热元件

摘要在多砧实验装置中对化学气相沉积(CVD)合成的掺硼金刚石(BDD)作为加热元件进行了测试。通过激光切割和放电加工，成功地将BDD加工成管状。放电加工成型的BDD管受到放电电极材料(Mo和W)的污染，影响了加热性能。激光切割的BDD管表面干净，因此具有良好的加热性能。我们成功地利用激光切割加热器在30 GPa左右的压力下产生了高达2670 K的温度。通过反复加热和冷却循环，确认了加热的再现性。回收样品表明，ZrO2绝缘体和Al2O3样品的共晶熔化阻止了2670 K以上高温的产生。由于CVD-BDD加热器的商业化和合理的价格，在广泛的应用中比高压合成BDD加热器更实用。

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来源期刊

High Pressure Research 物理-物理：综合

CiteScore

3.80

自引率

5.00%

发文量

审稿时长

2 months

期刊介绍： High Pressure Research is the leading journal for research in high pressure science and technology. The journal publishes original full-length papers and short research reports of new developments, as well as timely review articles. It provides an important forum for the presentation of experimental and theoretical advances in high pressure science in subjects such as: condensed matter physics and chemistry geophysics and planetary physics synthesis of new materials chemical kinetics under high pressure industrial applications shockwaves in condensed matter instrumentation and techniques the application of pressure to food / biomaterials Theoretical papers of exceptionally high quality are also accepted.