๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

On the formation and composition of pyrolytic carbon

โœ Scribed by K.I. Syskov; E.I. Jelikhovskaya


Publisher
Elsevier Science
Year
1967
Tongue
English
Weight
643 KB
Volume
5
Category
Article
ISSN
0008-6223

No coin nor oath required. For personal study only.

โœฆ Synopsis


The structure of globular formations of pyrolytic carbon at magnifications from 200 to 500 times are shown. The effect of the processes taking place in gaseous phase on the formation of globular structures of pyrocarbon has been ascertained. The size of the globules increases with the pyrolysis of methane, with the decrease of the rate of flow of the reaction gas and the increase of its concentration. The scheme for the growth of the globules is given. It is suggested that the pyrolytic carbon represents a mixture of hydrocarbons of aromatic nature having very high molecular weight, a part of which is present as free-radicals.


๐Ÿ“œ SIMILAR VOLUMES


Structures of pyrolytic carbon matrices
โœ Seh-Min Oh; Jai-Young Lee ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 481 KB

Carbon/carbon composites made from carbon mats and propane-derived pyrolytic carbon matrices have been characterized by optical microscopy and structural parameters such as density and apparent crystallite size. It is shown that the pyrolytic carbon matrices deposited by a thermal-gradient chemical

Studies of the formation of pyrolytic ca
โœ C.F. Cullis; A.C. Norris ๐Ÿ“‚ Article ๐Ÿ“… 1972 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 135 KB

Samples of highly oriented pyrolytic graphite reacted with oxygen under various conditions have been studied using optical microscopy and both transmission and scanning electron microscopy. In this manner the effects of oxidation on basal and edge surfaces have been separately evaluated. The orienta

128. Development and properties of PAN-b
โœ H.O Pierson; D.A Northrop; J.F Smatana ๐Ÿ“‚ Article ๐Ÿ“… 1973 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 106 KB

A carbon ribbon has been produced from a polyimide film whose microstructure can be varied by the degree of restraint or stretch during pyrolysis. The microstructure was varied from a coarse lamellar structure to a welldefined lamellar structure typical of a highly ordered graphite. Increasing the d