Evaluation of carbonized medium-density fiberboard for electrical applications

Andrew K. Kercher; Dennis C. Nagle

doi:10.1016/S0008-6223(01)00299-8

Evaluation of carbonized medium-density fiberboard for electrical applications

Andrew K. Kercher, Dennis C. Nagle

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

The conversion of wood-based fiberboard materials into crack-free, monolithic, porous hard carbons is of significant interest due to their ability to perform in a multifunctional capacity. Three varieties of carbonized medium-density fiberboard (c-MDF) were studied for electrical, mechanical, and structural properties. X-ray diffraction data suggested that the volume fraction of large turbostratic crystallites increased with carbonization temperature (T_carb). The volume fraction of large turbostratic crystallites had a positive correlation with elastic modulus and electrical conductivity. The c-MDF materials were approximately isotropic with respect to elastic modulus and exhibited increasing stiffness with increasing T_carb (up to 4.5 GPa). Between 600 and 1400 °C, the electrical resistivity of c-MDF varied by seven orders of magnitude. The electrical resistivity of the hard carbon material in c-MDF 1400 °C was found to be within about an order of magnitude of polycrystalline graphite.

Original language	English
Pages (from-to)	1321-1330
Number of pages	10
Journal	Carbon
Volume	40
Issue number	8
DOIs	https://doi.org/10.1016/S0008-6223(01)00299-8
State	Published - Jul 2002
Externally published	Yes

Funding

Financial support for this research came, in part, from a Johns Hopkins Applied Physics Laboratory Graduate Fellowship.

Funders	Funder number
Johns Hopkins University Applied Physics Laboratory

Keywords

A. Char, Porous carbon
B. Pyrolysis
D. Electrical (electronic) properties, Mechanical properties

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10.1016/S0008-6223(01)00299-8

Cite this

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title = "Evaluation of carbonized medium-density fiberboard for electrical applications",

abstract = "The conversion of wood-based fiberboard materials into crack-free, monolithic, porous hard carbons is of significant interest due to their ability to perform in a multifunctional capacity. Three varieties of carbonized medium-density fiberboard (c-MDF) were studied for electrical, mechanical, and structural properties. X-ray diffraction data suggested that the volume fraction of large turbostratic crystallites increased with carbonization temperature (Tcarb). The volume fraction of large turbostratic crystallites had a positive correlation with elastic modulus and electrical conductivity. The c-MDF materials were approximately isotropic with respect to elastic modulus and exhibited increasing stiffness with increasing Tcarb (up to 4.5 GPa). Between 600 and 1400 °C, the electrical resistivity of c-MDF varied by seven orders of magnitude. The electrical resistivity of the hard carbon material in c-MDF 1400 °C was found to be within about an order of magnitude of polycrystalline graphite.",

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AU - Kercher, Andrew K.

AU - Nagle, Dennis C.

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N2 - The conversion of wood-based fiberboard materials into crack-free, monolithic, porous hard carbons is of significant interest due to their ability to perform in a multifunctional capacity. Three varieties of carbonized medium-density fiberboard (c-MDF) were studied for electrical, mechanical, and structural properties. X-ray diffraction data suggested that the volume fraction of large turbostratic crystallites increased with carbonization temperature (Tcarb). The volume fraction of large turbostratic crystallites had a positive correlation with elastic modulus and electrical conductivity. The c-MDF materials were approximately isotropic with respect to elastic modulus and exhibited increasing stiffness with increasing Tcarb (up to 4.5 GPa). Between 600 and 1400 °C, the electrical resistivity of c-MDF varied by seven orders of magnitude. The electrical resistivity of the hard carbon material in c-MDF 1400 °C was found to be within about an order of magnitude of polycrystalline graphite.

AB - The conversion of wood-based fiberboard materials into crack-free, monolithic, porous hard carbons is of significant interest due to their ability to perform in a multifunctional capacity. Three varieties of carbonized medium-density fiberboard (c-MDF) were studied for electrical, mechanical, and structural properties. X-ray diffraction data suggested that the volume fraction of large turbostratic crystallites increased with carbonization temperature (Tcarb). The volume fraction of large turbostratic crystallites had a positive correlation with elastic modulus and electrical conductivity. The c-MDF materials were approximately isotropic with respect to elastic modulus and exhibited increasing stiffness with increasing Tcarb (up to 4.5 GPa). Between 600 and 1400 °C, the electrical resistivity of c-MDF varied by seven orders of magnitude. The electrical resistivity of the hard carbon material in c-MDF 1400 °C was found to be within about an order of magnitude of polycrystalline graphite.

KW - A. Char, Porous carbon

KW - B. Pyrolysis

KW - D. Electrical (electronic) properties, Mechanical properties

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Evaluation of carbonized medium-density fiberboard for electrical applications

Abstract

Funding

Keywords

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