Multiwalled Carbon Nanotube Monoliths prepared by Spark Plasma Sintering (SPS) and their Mechanical Properties

Uo, Motohiro; Hasegawa, Tomoka; Akasaka, Tsukasa et al.

Bio-Medical Materials and Engineering, 2009, 19(1), 11-17

Permalink : https://hdl.handle.net/2115/38771

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アクセス権
open access
URI
https://hdl.handle.net/2115/38771
タイトル
Multiwalled Carbon Nanotube Monoliths prepared by Spark Plasma Sintering (SPS) and their Mechanical Properties
著者
Uo, Motohiro ; Hasegawa, Tomoka ; Akasaka, Tsukasa ; Tanaka, Isao ; Munekane, Fuminori ; Omori, Mamoru ; Kimura, Hisamichi ; Nakatomi, Reiko ; Soga, Kohei ; Kogo, Yasuo ; Watari, Fumio
e-Rad_Researcher
20242042
著者名
Uo, Motohiro
著者名
Hasegawa, Tomoka
著者名
Akasaka, Tsukasa
著者名
Tanaka, Isao
著者名
Munekane, Fuminori
著者名
Omori, Mamoru
著者名
Kimura, Hisamichi
著者名
Nakatomi, Reiko
著者名
Soga, Kohei
著者名
Kogo, Yasuo
著者名
Watari, Fumio
言語
英語
キーワード
Carbon nanotube
spark plasma sintering
elastic modulus
hardness
発行日
2009
出版者
IOS Press
収録物名
Bio-Medical Materials and Engineering
巻(号)
19(1)
ページ
11-17
抄録
Three types of multiwalled carbon nanotube (MWCNT) monoliths without any binders were obtained by spark plasma sintering (SPS) treatment at 2000℃ under 80MPa sintering pressure. Three MWCNTs with different diameters: thin (20~30nm∅, CNT Co., Ltd., Korea), thick (100nm∅, Nano Carbon Technologies Co., Ltd., Japan) and spherical thin (20~30nm∅, granulated diameter=1~3μm, Shimizu Corporation, Japan)) were employed for SPS. SEM observation confirmed that these materials maintained the nanosized tube microstructure of raw CNT powder after SPS treatment. The densest monolith was prepared with the spherical MWCNTs. The mechanical properties of this material were estimated by the dynamic hardness test. The elastic modulus of the monolith did not depend on the difference of MWCNTs, but the hardness of spherical MWCNTs was higher than that of thick MWCNTs. The high density and hardness of the spherical MWCNTs were caused by the high packing density during the SPS process because of its spherical granulation. Thus, the spherical MWCNTs were most useful for the MWCNT monolith preparation with the SPS process and its application as a bone substitute material and a bone tissue engineering scaffold material was suggested.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0959-2989
EISSN
1878-3619
NCID
AA1076721X
関連情報
PMID
19458441
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.3233/BME-2009-0558