Graphite Materials

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Graphite Materials

• By
• Arnold Saucedo

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Definition

• Graphite is an allotropic form of carbon,
• known as plumbago and black lead,
• dark gray,
• Crystalline - HCP
• Greasy,
• Soft, with a metallic luster,
• Good conductor of electricity,
• Does not burn easily

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History

• Graphite was discovered around the mid 1500s.
• Synthetic graphite was made by E.G. Ancheson.
• Natural graphite was discovered by Mr. Stephen
  Riddle.
• Today both natural and synthetic graphite are a
  great benefit for todays society.

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Composition of Graphite

• Graphite consist of carbon atoms, which form
  sheets of linked hexagons.
• Each carbon atom within a sheet forms strong
  bonds to three other carbon atoms, but the
  stacked sheets are only held together by weak
  bonds.
• Graphite is know as black lead, when mix with
  clay it forms the lead pencils.

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Applications

• Pencils
• Dry Lubricants
• Paints
• Golf Club
• Foundry Facings
• Grate Polish

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References

• http//3.1911encyclopedia.org/G/GR/GRAPHITE.htm
• http//mineral.galleries.com/minerals/elements/gra
  phite/graphite.htm
• http//images.google.com/images?qgraphitehlenl
  rsaNtabiioiimagest
• http//www.asbury.com/TechServices.cfm?activityAr
  ticlesADIDIntroduction