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Thermal Conductivity of Nanostructured Boron Nitride Materials

2006; American Chemical Society; Volume: 110; Issue: 21 Linguagem: Inglês

10.1021/jp0607014

1520-6106

Chengchun Tang, Yoshio Bando, Changhong Liu, Shoushan Fan, Jun Zhang, Xiaoxia Ding, Dmitri Golberg,

Graphene research and applications

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.