Thermal conductivity of nanostructured boron nitride materials

被引：79
作者：
Tang, Chengchun
Bando, Yoshio
Liu, Changhong
Fan, Shoushan
Zhang, Jun
Ding, Xiaoxia
Golberg, Dmitri
机构：
[1] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan
[2] Tsinghua Univ, Tsinghua Foxconn Nanotechnol Res Ctr, Beijing 100084, Peoples R China
[3] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[4] Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2006年 / 110卷 / 21期
关键词：
D O I：
10.1021/jp0607014
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We have measured the thermal conductivity of bulky pellets made of various boron nitride (BN)-based nanomaterials, including spherical nanoparticles, perfectly structured, bamboo-like nanotubes, and collapsed nanotubes. The thermal conductivity strongly depends on the morphology of the BN nanomaterials, especially on the surface structure. Spherical BN particles have the lowest thermal conductivity while the collapsed BN nanotubes possess the best thermoconductive properties. A model was proposed to explain the experimental observations based on the heat percolation passage considerations.
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页码：10354 / 10357
页数：4
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