Estimating error in measuring thermal conductivity using a T-type nanosensor

Yohei Ito, Koji Takahashi, Motoo Fujii, Xing Zhang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We discuss the measurement error caused by fabrication and measurement of a T-type nanosensor with a suspended sub-micrometer Pt hot film that was developed to measure the thermal properties of individual nanowire materials. Comparison of numerical simulation and one-dimensional analysis revealed that the thermal conductivity of nanowire material such as a carbon nanotube is calculated to be 17% lower. As an example, the thermal conductivity measurement result for a SiC nanowire is reported. The error caused by contact thermal resistance is found to depend on the contact length and can be as great as 20%. It can be said that future measuring can have higher reliability by correcting the estimated measurement error.

Original languageEnglish
Pages (from-to)297-312
Number of pages16
JournalHeat Transfer - Asian Research
Volume38
Issue number5
DOIs
Publication statusPublished - Jul 1 2009

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Fluid Flow and Transfer Processes

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