Factors affecting the graphitization of carbon: Evidence from polarized light microscopy

✍ Scribed by J.J Kipling; P.V Shooter

• Publisher: Elsevier Science
• Year: 1966
• Tongue: English
• Weight: 649 KB
• Volume: 4
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(66)90003-0

✦ Synopsis

Abatraot-Carbons,

prepared mainly from aliphatic polymers at 700°C have been examined under polarized light. This shows the presence or absence of regions of anisotropy corresponding to those found in carbons heated to 2700°C which are graph& or non-graphitic, respectively. The examination in this way of 700°C carbons is thus diagnostic of the graphitizing or non-graphitizing character of the carbon. This result confirms a previous conclusion that the residue formed in carbonization of any starting material (unless it is already extensively condensed and ordered) must have passed through a fusion stage for orientation of the polycyclic residue to occur if graphitization is to be possible subsequently.