Spark plasma sintering assisted diamond formation from carbon nanotubes at very low pressure

J. Shen; F. M. Zhang; J. F. Sun; Y. Q. Zhu; D. G. McCartney

doi:10.1088/0957-4484/17/9/018

Spark plasma sintering assisted diamond formation from carbon nanotubes at very low pressure

J. Shen^*
, F. M. Zhang
, J. F. Sun
, Y. Q. Zhu
, D. G. McCartney

^*Corresponding author for this work

Harbin Institute of Technology
CAS - Shanghai Institute of Ceramics
University of Nottingham

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

The thermal stability of multi-walled carbon nanotubes (MWCNTs) was assessed under various spark plasma sintering (SPS) conditions. Our experimental results show that the MWCNTs transform into micrometre-sized diamonds at 1500 °C and only 80MPa during SPS. The resulting diamonds are single or agglomerated crystalline particles, with diameters up to 100νm, and are sheathed with an amorphous carbon layer and a residue of a few CNT layers. The SPS-assisted transition from MWCNTs to diamond was investigated, and a model for CNT breakage is proposed to describe the initial diamond growth. Taking into account the rapid and simple operating features of SPS, we believe that this process exhibits great potential for diamond synthesis on a large scale.

Original language	English
Pages (from-to)	2187-2191
Number of pages	5
Journal	Nanotechnology
Volume	17
Issue number	9
DOIs	https://doi.org/10.1088/0957-4484/17/9/018
State	Published - 14 May 2006
Externally published	Yes

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title = "Spark plasma sintering assisted diamond formation from carbon nanotubes at very low pressure",

abstract = "The thermal stability of multi-walled carbon nanotubes (MWCNTs) was assessed under various spark plasma sintering (SPS) conditions. Our experimental results show that the MWCNTs transform into micrometre-sized diamonds at 1500 °C and only 80MPa during SPS. The resulting diamonds are single or agglomerated crystalline particles, with diameters up to 100νm, and are sheathed with an amorphous carbon layer and a residue of a few CNT layers. The SPS-assisted transition from MWCNTs to diamond was investigated, and a model for CNT breakage is proposed to describe the initial diamond growth. Taking into account the rapid and simple operating features of SPS, we believe that this process exhibits great potential for diamond synthesis on a large scale.",

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T1 - Spark plasma sintering assisted diamond formation from carbon nanotubes at very low pressure

AU - Shen, J.

AU - Zhang, F. M.

AU - Sun, J. F.

AU - Zhu, Y. Q.

AU - McCartney, D. G.

PY - 2006/5/14

Y1 - 2006/5/14

N2 - The thermal stability of multi-walled carbon nanotubes (MWCNTs) was assessed under various spark plasma sintering (SPS) conditions. Our experimental results show that the MWCNTs transform into micrometre-sized diamonds at 1500 °C and only 80MPa during SPS. The resulting diamonds are single or agglomerated crystalline particles, with diameters up to 100νm, and are sheathed with an amorphous carbon layer and a residue of a few CNT layers. The SPS-assisted transition from MWCNTs to diamond was investigated, and a model for CNT breakage is proposed to describe the initial diamond growth. Taking into account the rapid and simple operating features of SPS, we believe that this process exhibits great potential for diamond synthesis on a large scale.

AB - The thermal stability of multi-walled carbon nanotubes (MWCNTs) was assessed under various spark plasma sintering (SPS) conditions. Our experimental results show that the MWCNTs transform into micrometre-sized diamonds at 1500 °C and only 80MPa during SPS. The resulting diamonds are single or agglomerated crystalline particles, with diameters up to 100νm, and are sheathed with an amorphous carbon layer and a residue of a few CNT layers. The SPS-assisted transition from MWCNTs to diamond was investigated, and a model for CNT breakage is proposed to describe the initial diamond growth. Taking into account the rapid and simple operating features of SPS, we believe that this process exhibits great potential for diamond synthesis on a large scale.

UR - https://www.scopus.com/pages/publications/33646175527

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DO - 10.1088/0957-4484/17/9/018

M3 - 文章

AN - SCOPUS:33646175527

SN - 0957-4484

VL - 17

SP - 2187

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JO - Nanotechnology

JF - Nanotechnology

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ER -

Spark plasma sintering assisted diamond formation from carbon nanotubes at very low pressure

Abstract

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