Polyhedral　graphite　(PG)　particles　have　been　synthesized　by　DC　are　vaporization　of　pure　graphite　in　He　and　H-2　gases　with　a　fan　blowing　across　the　arc　zone.　The　crystal　structure　and　character　of　PG　particles　have　been　investigated　by　transmission　electron　microscopy,　X-ray　powder　diffraction,　and　Raman　scattering　spectroscopy.　The　PG　particles　produced　by　arc　discharge,　ranging　in　diameter　from　70　to　300　nm,　have　a　turbostratic　structure　and　have　no　hollow　cavities　in　their　centers.　The　yield　of　PG　particles　is　about　50%.　The　cooling　rate　increase　of　carbon　vapor　caused　by　the　forced　flow　plays　a　significant　role　for　PG　formation.　(C)　2007　Elsevier　B.V.　All　rights　reserved.