title: Thermal conductivity of nanostructured boron nitride materials.
abstract: 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.
authors.affiliation: Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tskuba, Ibaraki 305-0044, Japan. tang.chengchun@nims.go.jp
authors.forename: Chengchun
authors.initials: C
authors.lastname: Tang
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Bando
authors.forename: Changhong
authors.initials: C
authors.lastname: Liu
authors.forename: Shoushan
authors.initials: S
authors.lastname: Fan
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.forename: Xiaoxia
authors.initials: X
authors.lastname: Ding
authors.forename: Dmitri
authors.initials: D
authors.lastname: Golberg