A new family of sp3-hybridized carbon phases

Ning Xu; Jian-Fu Li; Bo-Long Huang; Bao-Lin Wang

doi:10.1088/1674-1056/25/1/016103

A new family of sp³-hybridized carbon phases

Ning Xu^*
, Jian-Fu Li
, Bo-Long Huang
, Bao-Lin Wang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

11 Citations (Scopus)

Abstract

A new family of superhard carbon allotropes C48(2i +1) is constructed by alternating even 4 and 8 membered rings. These new carbon allotropes are of a spatially antisymmetrical structure, compared with the symmetrical structures of bct-C4, Z-carbon, and P-carbon. Our calculations show that bulk moduli of C48(2i +1) are larger than that of c-BN and smaller than that of cubic-diamond. C48(2i +1) are transparent superhard materials possessing large Vicker hardness comparable to diamond. This work can help us understand the structural phase transformations of cold-compression graphite and carbon nanotubes.

Original language	English
Article number	016103
Journal	Chinese Physics B
Volume	25
Issue number	1
Online published	8 Dec 2015
DOIs	https://doi.org/10.1088/1674-1056/25/1/016103
Publication status	Published - Jan 2016

Funding

Project supported by the National Natural Science Foundation of China (Grant Nos. 11174242, 11204265, 11404278, 11147007, and 11274151), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK2012248), and the Scientific Research Foundation of Yancheng Institute of Technology, China (Grant No. KJC2014024).

Research Keywords

low-temperature phase transformation
superhard carbon phase

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10.1088/1674-1056/25/1/016103

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Cite this

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title = "A new family of sp3-hybridized carbon phases",

abstract = "A new family of superhard carbon allotropes C48(2i +1) is constructed by alternating even 4 and 8 membered rings. These new carbon allotropes are of a spatially antisymmetrical structure, compared with the symmetrical structures of bct-C4, Z-carbon, and P-carbon. Our calculations show that bulk moduli of C48(2i +1) are larger than that of c-BN and smaller than that of cubic-diamond. C48(2i +1) are transparent superhard materials possessing large Vicker hardness comparable to diamond. This work can help us understand the structural phase transformations of cold-compression graphite and carbon nanotubes.",

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T1 - A new family of sp3-hybridized carbon phases

AU - Xu, Ning

AU - Li, Jian-Fu

AU - Huang, Bo-Long

AU - Wang, Bao-Lin

PY - 2016/1

Y1 - 2016/1

N2 - A new family of superhard carbon allotropes C48(2i +1) is constructed by alternating even 4 and 8 membered rings. These new carbon allotropes are of a spatially antisymmetrical structure, compared with the symmetrical structures of bct-C4, Z-carbon, and P-carbon. Our calculations show that bulk moduli of C48(2i +1) are larger than that of c-BN and smaller than that of cubic-diamond. C48(2i +1) are transparent superhard materials possessing large Vicker hardness comparable to diamond. This work can help us understand the structural phase transformations of cold-compression graphite and carbon nanotubes.

AB - A new family of superhard carbon allotropes C48(2i +1) is constructed by alternating even 4 and 8 membered rings. These new carbon allotropes are of a spatially antisymmetrical structure, compared with the symmetrical structures of bct-C4, Z-carbon, and P-carbon. Our calculations show that bulk moduli of C48(2i +1) are larger than that of c-BN and smaller than that of cubic-diamond. C48(2i +1) are transparent superhard materials possessing large Vicker hardness comparable to diamond. This work can help us understand the structural phase transformations of cold-compression graphite and carbon nanotubes.

KW - low-temperature phase transformation

KW - superhard carbon phase

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DO - 10.1088/1674-1056/25/1/016103

M3 - RGC 21 - Publication in refereed journal

SN - 1674-1056

VL - 25

JO - Chinese Physics B

JF - Chinese Physics B

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