Cyclic thermal transformations in caesium graphite

Abstract

Various physical properties can yield novel information about effects of texture of a graphite, on the detailed course of any thermal transformation of a graphite intercalate, when it is subjected to cyclic changes of temperature including a lambda peak. Using a DSC calorimeter with an imposed temperature change of 10 K min−1, we have found a novel transformation in caesium graphite CsC8 around 250 K. We show here that fine details appear to be sensitive to the texture of the graphite used.