Thermal conductivity of vertically aligned boron nitride nanotubes

被引：50

作者：

Belkerk, Boubakeur Essedik ^{[1
,2
]}

Achour, Amine ^{[3
]}

Zhang, Dongyan ^{[4
]}

Sahli, Salah ^{[2
]}

Djouadi, M-Abdou ^{[1
]}

Yap, Yoke Khin ^{[4
]}

机构：

[1] Univ Nantes, Inst Mat Jean Rouxel IMN, F-44322 Nantes 3, France

[2] Univ Constantine 1, LMI, Fac Sci Technol, Constantine 25017, Algeria

[3] INRS, Varennes, PQ J3X 1P7, Canada

[4] Michigan Technol Univ, Dept Phys, Houghton, MI 49931 USA

来源：

APPLIED PHYSICS EXPRESS | 2016年 / 9卷 / 07期

基金：

美国国家科学基金会;

关键词：

RESISTANCE;

D O I：

10.7567/APEX.9.075002

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

For the first time, we report the thermal conductivity of vertically aligned boron nitride nanotube (BNNT) films produced by catalytic chemical vapor deposition. High-quality BNNTs were synthesized at 1200 degrees C on fused silica substrates precoated with Pt thin-film thermometers. The thermal conductivity of the BNNTs was measured at room temperature by using a pulsed photothermal technique. The apparent thermal conductivity of the BNNT coatings increased from 55 to 170 W m(-1) K-1 when the thickness increased from 10 to 28 mu m, while the thermal conductivity attained a value as high as 2400 W m(-1) K-1. These results suggested that BNNTs, which are highly thermally conductive, but electrically insulating, are promising materials with unique properties. (C) 2016 The Japan Society of Applied Physics

引用

页数：4

共 22 条

[1] Thermal properties of carbon nanowall layers measured by a pulsed photothermal technique [J].