Chemical evidence for the existence of non-basal dislocations in graphite

Publisher Website
Google Scholar
Abstract
Evidence has previously been presented (Hennig and Kanter 1961 and Hughes et al. 1964) to suggest that individual vacancies, vacancy loops and c-axis screws, separately, stimulate etch-pit production during the oxidation of graphite at elevated temperatures. and, by comparing the etching characteristics of synthetic graphite before and after irradiation, Dawson and Follett (1963) have recently consolidated the view that etch-pit density and vacancy content are related. However, the notion that etch pits produced during oxidation may frequently be nucleated at c-axis dislocations still meets with considerable scepticism, chiefly because of the extreme rarity with which electron microscopists have detected (Fujita and Izui 1961, Williamson and Baker 1963) direct evidence for the occurrence of non-basal dislocations in graphite flakes. The purpose of this communication is to report additional evidence for the part played by non-basal dislocations in the oxidation of graphite.

This publication has 10 references indexed in Scilit: