Abstract
Quasicrystals represent a new state of condensed matter which exhibits long-range quasiperiodic translational order and orientational order with noncrystallographic symmetry. Mechanical spectroscopy was applied for the study of defect properties in stable icosahedral single-quasicrystalline Al-Pd-Mn samples. Two mechanical loss maxima appear at 360 K and 870 K for a measuring frequency of f3 Hz. The relaxation parameters for both peaks were determined as H = 0.98 eV, T τ -1 = 4.5.10 -14 s -1 for the low temperature peak, and H = 4.0 eV, τ∞ -1 = 3.0.10 24 s -1 for the high temperature peak, respectively. Both peaks are related to phason defects which are characteristic for the quasicrystalline structure.
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.
