Electrical conductivity and micro hardness of synthetic and natural graphite epoxy composite

Hendra Suherman, Jaafar Sahari, Abu Bakar Sulong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This study investigates the electrical conductivity and micro hardness of synthetic and natural graphite epoxy composite. Graphite used on this study is synthetic graphite (SG) and natural graphite (NG) with particle size 44μm and 30μm, respectively. Different graphite concentrations (50-80 wt.%) were added into the epoxy resin. The dispersion of graphite in epoxy resin was conducted by high speed mixer through mechanical shearing mechanism, its graphite epoxy suspension was poured into the mold and compression molding was conducted for fabrication of graphite epoxy composites. Electrical conductivity was measured by the four point probe. Microscopic analyses conducted on fracture surface use scanning electron microscopic. Results reveal that non conductive epoxy polymer becomes conductor as addition of graphite. Electrical conductivity of NG higher than SG at the same weight percentage (Wt. %) of conducting filler loading. The highest loading concentration, it exhibited values 12.6 S/cm and 7 S/cm at (80 Wt. %). Hardness property of epoxy composites of both type of graphite increase continuously and reached peak at 60 wt% for NG and 70 wt % for SG, while more addition decreased it.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages614-618
Number of pages5
Volume447 448
DOIs
Publication statusPublished - 2010
EventICoPE2010 and 13th ICPE International Conference on Precision Engineering -
Duration: 28 Jul 201030 Jul 2010

Publication series

NameKey Engineering Materials
Volume447 448
ISSN (Print)10139826

Other

OtherICoPE2010 and 13th ICPE International Conference on Precision Engineering
Period28/7/1030/7/10

Fingerprint

Graphite epoxy composites
Graphite
Microhardness
Artificial graphite
Epoxy Resins
Epoxy resins
Electric Conductivity
Compression molding
Shearing
Fillers
Suspensions
Polymers
Hardness
Particle size
Scanning
Fabrication

Keywords

  • Composite
  • Electrical conductivity
  • Graphite
  • Particle size

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Suherman, H., Sahari, J., & Sulong, A. B. (2010). Electrical conductivity and micro hardness of synthetic and natural graphite epoxy composite. In Key Engineering Materials (Vol. 447 448, pp. 614-618). (Key Engineering Materials; Vol. 447 448). https://doi.org/10.4028/www.scientific.net/KEM.447-448.614

Electrical conductivity and micro hardness of synthetic and natural graphite epoxy composite. / Suherman, Hendra; Sahari, Jaafar; Sulong, Abu Bakar.

Key Engineering Materials. Vol. 447 448 2010. p. 614-618 (Key Engineering Materials; Vol. 447 448).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Suherman, H, Sahari, J & Sulong, AB 2010, Electrical conductivity and micro hardness of synthetic and natural graphite epoxy composite. in Key Engineering Materials. vol. 447 448, Key Engineering Materials, vol. 447 448, pp. 614-618, ICoPE2010 and 13th ICPE International Conference on Precision Engineering, 28/7/10. https://doi.org/10.4028/www.scientific.net/KEM.447-448.614
Suherman H, Sahari J, Sulong AB. Electrical conductivity and micro hardness of synthetic and natural graphite epoxy composite. In Key Engineering Materials. Vol. 447 448. 2010. p. 614-618. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.447-448.614
Suherman, Hendra ; Sahari, Jaafar ; Sulong, Abu Bakar. / Electrical conductivity and micro hardness of synthetic and natural graphite epoxy composite. Key Engineering Materials. Vol. 447 448 2010. pp. 614-618 (Key Engineering Materials).
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