Abstract
A grain boundary formed by two crystallites whose misfit angle is less than 10° may be described1 as an array of dislocations. In crystals such as sodium chloride, it is possible to introduce internal grain boundaries that consist almost entirely of edge dislocations. The theory2 of thermal conductivity predicts that for alkali halide crystals, in a temperature region where only one scattering mechanism is present, the conductivity in crystals containing grain boundaries will vary as the cube of the temperature, whereas the conductivity in crystals containing random dislocations will vary as the square of the temperature. The latter dependence has been observed in lithium fluoride by Sproull, Moss, and Weinstock.3
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
