In-situ TEM observation of internal metal inside metal filled carbon fiber

Tomoharu Tokunaga; Yoshiro Horita; Takumi Kanematsu; Ikuo Nomura; Toru Iijima; Yasuhiko Hayashi; Kotaro Kuroda

doi:10.1016/j.diamond.2010.12.005

In-situ TEM observation of internal metal inside metal filled carbon fiber

Tomoharu Tokunaga, Yoshiro Horita, Takumi Kanematsu, Ikuo Nomura, Toru Iijima, Yasuhiko Hayashi, Kotaro Kuroda

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

2 Citations (Scopus)

Abstract

There has been a considerable amount of research on MFCNTs and MFCNFs; however, research on the behavior of the internal metal used in MFCNF under heating has been limited. Therefore, in this study, an MFCNF was heated and the behavior of the internal metal was investigated using in-situ TEM observations. The internal metal used in the MFCNF did not melt. It was supposed that the non-melting was because of the high pressure of the internal metal resulting from a difference in the coefficients of linear thermal expansion of the graphite wall of the MFCNF and the internal metal. The pressure of the internal metal was calculated; it was approximately 12 GPa when the MFCNF was heated at 1500 °C.

Original language	English
Pages (from-to)	210-212
Number of pages	3
Journal	Diamond and Related Materials
Volume	20
Issue number	2
DOIs	https://doi.org/10.1016/j.diamond.2010.12.005
Publication status	Published - Feb 1 2011
Externally published	Yes

Keywords

Heating
In-situ TEM
Melting point
Nanotubes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Chemistry(all)
Mechanical Engineering
Materials Chemistry
Electrical and Electronic Engineering

Access to Document

10.1016/j.diamond.2010.12.005

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Cite this

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abstract = "There has been a considerable amount of research on MFCNTs and MFCNFs; however, research on the behavior of the internal metal used in MFCNF under heating has been limited. Therefore, in this study, an MFCNF was heated and the behavior of the internal metal was investigated using in-situ TEM observations. The internal metal used in the MFCNF did not melt. It was supposed that the non-melting was because of the high pressure of the internal metal resulting from a difference in the coefficients of linear thermal expansion of the graphite wall of the MFCNF and the internal metal. The pressure of the internal metal was calculated; it was approximately 12 GPa when the MFCNF was heated at 1500 °C.",

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AU - Tokunaga, Tomoharu

AU - Horita, Yoshiro

AU - Kanematsu, Takumi

AU - Nomura, Ikuo

AU - Iijima, Toru

AU - Hayashi, Yasuhiko

AU - Kuroda, Kotaro

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