Epitaxial Grown Carbon Nanotubes Reinforced Pyrocarbon Matrix in C/C Composites with Improved Mechanical Properties

In order to achieve the highly efficient preparation of high-performance carbon/carbon (C/C) composites, epitaxial grown carbon nanotubes (CNTs) and a pyrocarbon matrix were simultaneously synthesized to fabricate CNT-reinforced C/C composites (CC/C composites). With precise control of the temperatu...

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Autores principales:	Ningkun Liu, Lingjun Guo, Gang Kou, Yunyu Li, Xuemin Yin
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	carbon nanotubes epitaxial growth carbon/carbon composites Raman mechanical properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/ad7a88a259c6454c9a2bf73471eb46d0
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spelling	oai:doaj.org-article:ad7a88a259c6454c9a2bf73471eb46d02021-11-11T18:08:27ZEpitaxial Grown Carbon Nanotubes Reinforced Pyrocarbon Matrix in C/C Composites with Improved Mechanical Properties10.3390/ma142166071996-1944https://doaj.org/article/ad7a88a259c6454c9a2bf73471eb46d02021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6607https://doaj.org/toc/1996-1944In order to achieve the highly efficient preparation of high-performance carbon/carbon (C/C) composites, epitaxial grown carbon nanotubes (CNTs) and a pyrocarbon matrix were simultaneously synthesized to fabricate CNT-reinforced C/C composites (CC/C composites). With precise control of the temperature gradient, CNTs and the pyrocarbon matrix could grow synchronously within a 2D needle-punched carbon fiber preform. Surprisingly, the CNTs remained intact within the pyrocarbon matrix at the nano-level, and the CNT-reinforced nano-pyrocarbon matrix was compact, with virtually no gaps and pores, which were tightly connected with the carbon fibers without cracks. Based on the results of Raman analysis, there is less residual stress in the CNT-reinforced pyrocarbon matrix and carbon fibers, and less of a mismatch between the coefficient and thermal expansion. Additionally, CC/C composites fabricated by this method could achieve a low density, open porosity with a large size, and improved mechanical properties. More importantly, our work provides a rational design strategy for the highly efficient preparation and structural design of high-performance CNT-einforced C/C composites.Ningkun LiuLingjun GuoGang KouYunyu LiXuemin YinMDPI AGarticlecarbon nanotubesepitaxial growthcarbon/carbon compositesRamanmechanical propertiesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6607, p 6607 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbon nanotubes epitaxial growth carbon/carbon composites Raman mechanical properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	carbon nanotubes epitaxial growth carbon/carbon composites Raman mechanical properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Ningkun Liu Lingjun Guo Gang Kou Yunyu Li Xuemin Yin Epitaxial Grown Carbon Nanotubes Reinforced Pyrocarbon Matrix in C/C Composites with Improved Mechanical Properties
description	In order to achieve the highly efficient preparation of high-performance carbon/carbon (C/C) composites, epitaxial grown carbon nanotubes (CNTs) and a pyrocarbon matrix were simultaneously synthesized to fabricate CNT-reinforced C/C composites (CC/C composites). With precise control of the temperature gradient, CNTs and the pyrocarbon matrix could grow synchronously within a 2D needle-punched carbon fiber preform. Surprisingly, the CNTs remained intact within the pyrocarbon matrix at the nano-level, and the CNT-reinforced nano-pyrocarbon matrix was compact, with virtually no gaps and pores, which were tightly connected with the carbon fibers without cracks. Based on the results of Raman analysis, there is less residual stress in the CNT-reinforced pyrocarbon matrix and carbon fibers, and less of a mismatch between the coefficient and thermal expansion. Additionally, CC/C composites fabricated by this method could achieve a low density, open porosity with a large size, and improved mechanical properties. More importantly, our work provides a rational design strategy for the highly efficient preparation and structural design of high-performance CNT-einforced C/C composites.
format	article
author	Ningkun Liu Lingjun Guo Gang Kou Yunyu Li Xuemin Yin
author_facet	Ningkun Liu Lingjun Guo Gang Kou Yunyu Li Xuemin Yin
author_sort	Ningkun Liu
title	Epitaxial Grown Carbon Nanotubes Reinforced Pyrocarbon Matrix in C/C Composites with Improved Mechanical Properties
title_short	Epitaxial Grown Carbon Nanotubes Reinforced Pyrocarbon Matrix in C/C Composites with Improved Mechanical Properties
title_full	Epitaxial Grown Carbon Nanotubes Reinforced Pyrocarbon Matrix in C/C Composites with Improved Mechanical Properties
title_fullStr	Epitaxial Grown Carbon Nanotubes Reinforced Pyrocarbon Matrix in C/C Composites with Improved Mechanical Properties
title_full_unstemmed	Epitaxial Grown Carbon Nanotubes Reinforced Pyrocarbon Matrix in C/C Composites with Improved Mechanical Properties
title_sort	epitaxial grown carbon nanotubes reinforced pyrocarbon matrix in c/c composites with improved mechanical properties
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ad7a88a259c6454c9a2bf73471eb46d0
work_keys_str_mv	AT ningkunliu epitaxialgrowncarbonnanotubesreinforcedpyrocarbonmatrixincccompositeswithimprovedmechanicalproperties AT lingjunguo epitaxialgrowncarbonnanotubesreinforcedpyrocarbonmatrixincccompositeswithimprovedmechanicalproperties AT gangkou epitaxialgrowncarbonnanotubesreinforcedpyrocarbonmatrixincccompositeswithimprovedmechanicalproperties AT yunyuli epitaxialgrowncarbonnanotubesreinforcedpyrocarbonmatrixincccompositeswithimprovedmechanicalproperties AT xueminyin epitaxialgrowncarbonnanotubesreinforcedpyrocarbonmatrixincccompositeswithimprovedmechanicalproperties
_version_	1718431962077593600

Epitaxial Grown Carbon Nanotubes Reinforced Pyrocarbon Matrix in C/C Composites with Improved Mechanical Properties

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