Abstract
The secondary recrystallisation of thin platinum sheet at 1500°C was observed and the growth rates of the secondary crystals were measured. Only crystals with orientations close to {111} were observed to grow. The relative variation of surface energy with crystallographic orientation was measured by the twin boundary groove technique and the grain boundary energy relative to the average surface energy was evaluated from grain boundary groove angles, so that the applied driving pressure for secondary recrystallisation could be calculated. The drag force opposing grain boundary migration was estimated from the variation of grain boundary velocity with applied driving pressure and the grain boundary mobility was evaluated. The results are compared with other mobility measurements and grain boundary anchoring and drag effects are discussed.
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.
