Eur. Phys. J. Appl. Phys.
Volume 30, Number 3, June 2005
|Page(s)||189 - 192|
|Section||Imaging, Microscopy and Spectroscopy|
|Published online||04 March 2005|
High mechanical quality factor of calcium fluoride (CaF2) at room temperature
School of Physics, University of Western Australia, Nedlands, WA 6009,
2 Research Institute of Synthetic Crystals, Beijing 100018, P.R. China
3 School of Computer and Information Science, Edith Cowan University, Mt. Layley, WA 6050, Australia
Corresponding author: email@example.com
Revised: 16 December 2004
Accepted: 22 December 2004
Published online: 4 March 2005
We present results on the room temperature mechanical quality factor of single crystal calcium fluoride (CaF2) grown by the Bridgman-Stockbarger method. Resonant mode Q-factors are measured in the frequency range 20 to 76 kHz using tungsten wire loop suspensions. In spite of indications of only moderate crystal purity, we observed 6 modes with Q-factor > 107, and one with , more than an order of magnitude higher than previously reported results.
PACS: 43.40.+s – Structural acoustics and vibration / 43.60.+d – Acoustic signal processing / 46.50.+a – Fracture mechanics, fatigue and cracks / 62.30.+d – Mechanical and elastic waves; vibrations
© EDP Sciences, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.