Studies on pyrolytic carbons obtained by acetylene pyrolysis at 1273 K—I: Types, properties and structures of carbons deposited

✍ Scribed by S. Jasieńko; J. Machnikowski

• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 798 KB
• Volume: 19
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(81)90043-9

✦ Synopsis

Various types of pyrolytic carbon, i.e. compact, feathery, brittle, spongy and soot-like, were obtained by acetylene pyrolysis in a flow reactor at 1273 K. The effects of the process variables (acetylene concentration in argon and gas flow rate) on both the solids yield and the relative proportions of the various types of carbon were estimated. These carbons, except the soot-like, showed similar elementary composition and structure parameters, but were distinguishable by their microstructures. In general, the compact carbon showed various forms of conical texture; the feathery, brittle and spongy carbons had anisotropic spherulitic textures with characteristic sphere size and packing for each type; and the soot-like carbon had an isotropic texture.