Effect of inclination on pure ice grain boundary relative energy
Abstract
In this paper the grain boundary (GB) relative energy γbg/ γ
s has been measured ( γbg GB energy and γ
s free surface energy) in pure
ice bicrystalline sample with crystal disorientation <0001>/10º . The bicrystal has been studied at -18 ºC and the GB presented
different inclinations. The γbg/ γ
s values were determined from a crystal surface plastic replica using a confocal microscope. The
values of γ γbg/ γ
s of bicrystalline sample with crystal disorientations <10-10>/60º and <10-10>/45º have been added in this work.
The data of γbg/ γ
s are compared between themselves and related with the CSL model for Ih ice. A marked correlation between the
CSL and the GB energy has been found.