[HTML][HTML] Carbon under pressure

B Sundqvist - Physics Reports, 2021 - Elsevier
Carbon is an element with extremely versatile bonding properties and theoretical
calculations have suggested the possible existence of several hundred structural allotropes …

Compressed carbon nanotubes: a family of new multifunctional carbon allotropes

M Hu, Z Zhao, F Tian, AR Oganov, Q Wang, M Xiong… - Scientific reports, 2013 - nature.com
The exploration of novel functional carbon polymorphs is an enduring topic of scientific
investigations. In this paper, we present simulations demonstrating metastable carbon …

From high pressure radial collapse to graphene ribbon formation in triple-wall carbon nanotubes

SD Silva-Santos, RS Alencar, AL Aguiar, YA Kim… - Carbon, 2019 - Elsevier
The radial stability and the irreversible transformation of triple-wall carbon nanotubes
(TWCNTs) bundles are investigated at high pressure conditions both experimentally and …

[HTML][HTML] Heat-treated glassy carbon under pressure exhibiting superior hardness, strength and elasticity

M Hu, S Zhang, B Liu, Y Wu, K Luo, Z Li, M Ma… - Journal of …, 2021 - Elsevier
Glassy carbon (GC) is a type of non-graphitizing disordered carbon material at ambient
pressure and high temperatures, which has been widely used due to its excellent …

High pressure–high temperature synthesis of diamond from single-wall pristine and iodine doped carbon nanotube bundles

A Merlen, P Toulemonde, S Le Floch, G Montagnac… - Carbon, 2009 - Elsevier
High pressure and high temperature experiments were performed on single-wall carbon
nanotube bundles up to 14.5 GPa and 1800K. Depending on the thermodynamic conditions …

High-pressure behaviors of carbon nanotubes

ZS Zhao, XF Zhou, M Hu, DL Yu, JL He… - Journal of Superhard …, 2012 - Springer
In this paper, we have reviewed the experimental and theoretical studies on pressure-
induced polygonization, ovalization, racetrack-shape deformation, and polymerization of …

The unexpected stability of multiwall nanotubes under high pressure and shear deformation

EY Pashkin, AM Pankov, BA Kulnitskiy… - Applied Physics …, 2016 - pubs.aip.org
The behavior of multiwall carbon nanotubes under a high pressure (up to 55 GPa) combined
with shear deformation was studied by experimental and theoretical methods. The …

Diamond-like phases obtained from nanotubes and three-dimensional graphites

EA Belenkov, VA Greshnyakov - Physics of the Solid State, 2015 - Springer
The results of ab initio calculations of the structure and properties of thirteen carbon
diamond-like phases with atoms located in equivalent crystallographic sites have been …

[HTML][HTML] Transformation of multiwall carbon nanotubes to onions with layers cross-linked by sp3 bonds under high pressure and shear deformation

AM Pankov, AS Bredikhina, BA Kulnitskiy… - AIP Advances, 2017 - pubs.aip.org
A pressure-induced phase transition of multiwall carbon nanotubes (MWNT) to a new
structure at room temperature is studied using a shear diamond anvil cell, X-ray …

Extreme mechanical anisotropy in diamond with preferentially oriented nanotwin bundles

Y Pan, P Ying, Y Gao, P Liu, K Tong… - Proceedings of the …, 2021 - National Acad Sciences
Mechanical properties of covalent materials can be greatly enhanced with strategy of
nanostructuring. For example, the nanotwinned diamond with an isotropic microstructure of …