Abstract
The types and densities of defects generated in LaNi 5 lattice have been observed using transmission electron microscopy after hydrogen absorption and desorption with increasing hydrogen concentration. Basically two types of dislocations, ripple-like facile dislocations and misfit super dislocations having Burgers vectors of 〈hk1〉 and 〈hk0〉, respectively, were observed. After full absorption and desorption of hydrogen, the generation and dynamic recovery of these dislocations resulted in well-developed dislocation walls and slip band structure. Structural disorders and micro-twins were also occasionally observed. The macroscopic effects such as, the solubility enhancement in α-phase, anisotropic X-ray peak broadening and large stored energy in the activated LaNi 5 could be related to the dislocations and anti-structural defects observed in this study.
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.
