CNT Diameter Dependence of Thermal Properties of MWCNT

• Matsuo Yoshichika

  Hachinohe Institute of Technology

• Wada Yusuke

  Hachinohe Institute of Technology

• Sasaki Takanori

  Hachinohe Institute of Technology

• Fujita Shigetaka

  Hachinohe Institute of Technology

抄録

Carbon nano tubes (CNT) have peculiar thermal properties and some applications with these properties are researched. In this research, we applied to improve heat radiation of silicon grease and investigated CNT diameter dependence of performance of improvement. In this research, we doped multi-walled CNTs (MWCNTs) which have two different diameters into silicon grease by 0.2wt% and 1.0wt% ratio. These samples were applied between an aluminum cube and an aluminum heat sink. Aluminum cubes were heated to 100°C and measured temperatures by the thermo tracer while cooling down. According to results, 0.2wt% CNT-containing grease was not able to improve heat radiation of silicon grease. It is thought that MWCNT which was doped in silicon grease by lower containing ratio could not conduct heat to neighbor CNT efficiently, and it could not improve the heat radiation. On the other hand, 1.0wt% CNT-containing grease had improved heat radiation. Additionally, MWCNT which had smaller diameter improved more effectively than lager one. It is thought that, interlayer bond of MWCNT impede the heat conduction by lattice vibration in the direction of length of CNT.

収録刊行物

• Transactions of the Materials Research Society of Japan

  Transactions of the Materials Research Society of Japan 37 (1), 15-18, 2012

  一般社団法人 日本MRS

キーワード

• CNT
• diameter dependence
• thermal properties
• heat radiation

詳細情報

• CRID: 1390282680489077632
• NII論文ID: 130003399036
• DOI: 10.14723/tmrsj.37.15
• COI: 1:CAS:528:DC%2BC38XntVylur0%3D
• ISSN: 21881650
• ISSN: 13823469
• Web Site: https://www.jstage.jst.go.jp/article/tmrsj/37/1/37_15/_pdf
• 本文言語コード: en
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