Jump to main content
Jump to site search

Issue 19, 2018
Previous Article Next Article

Revealing the linear relationship between electrical, thermal, mechanical and structural properties of carbon nanocoils

Author affiliations

Abstract

The special helical morphologies and polycrystalline–amorphous internal structures differ carbon nanocoils (CNCs) from carbon nanotubes or carbon nanofibers, but bring difficulties in illuminating the correlations between physical and structural properties. In this paper, we measure the electrical conductivity (σ), thermal diffusivity (α) and Young's modulus (E) of single CNCs at the same time, using a transient electrothermal technique and an electromechanical vibration technique. Based on the statistical results of 8 single CNC samples, a linear correlation between the three parameters is uncovered, expressed as σ = 0.052(α − 2.5) × 104 S m−1, E = (−10.38σ + 14.04) GPa and E = (−0.59α + 16.08) GPa, where the unit of α is 10−7 m2 s−1. Concise proportional relations between the three parameters and average graphite grain size (ld) are deduced, expressed as σ = Ald(C1T)−1, α = Bld(C2 + T)−1 and E = −Dld + E0. The proportional relation between physical parameters and ld demonstrates the confinement originated from the nano-grain system.

Graphical abstract: Revealing the linear relationship between electrical, thermal, mechanical and structural properties of carbon nanocoils

Back to tab navigation

Publication details

The article was received on 01 Mar 2018, accepted on 13 Apr 2018 and first published on 16 Apr 2018


Article type: Paper
DOI: 10.1039/C8CP01349G
Citation: Phys. Chem. Chem. Phys., 2018,20, 13316-13321
  •   Request permissions

    Revealing the linear relationship between electrical, thermal, mechanical and structural properties of carbon nanocoils

    C. Deng, C. Li, P. Wang, X. Wang and L. Pan, Phys. Chem. Chem. Phys., 2018, 20, 13316
    DOI: 10.1039/C8CP01349G

Search articles by author

Spotlight

Advertisements