Title :
Elastic constants of YCa4O(BO3)3 and NdCa4O(BO3)3 single crystals by the pulse-echo ultrasonic method
Author :
Sotnikov, A. ; Schmidt, Heidemarie ; Weihnacht, M. ; Zhang, S.J. ; Shrout, Thomas R. ; Yu, F.P.
Author_Institution :
Leibniz Inst. for Solid State & Mater. Res. Dresden, IFW Dresden, Dresden, Germany
Abstract :
Using the pulse-echo ultrasonic method, the velocities of the longitudinal and the shear bulk acoustic waves propagating in four crystallographic directions of YCa4O(BO3)3 and NdCa4O(BO3)3 monoclinic single crystals were measured at room temperature and nine elastic constants were obtained. Some elastic constants important for possible acoustic applications have been investigated also at temperatures up to 900°C.
Keywords :
acoustic wave propagation; crystal structure; crystallography; echo; elastic constants; neodymium compounds; piezoelectric materials; ultrasonic effects; yttrium compounds; NdCa4O(BO3)3; YCa4O(BO3)3; crystallographic directions; elastic constants; monoclinic single crystals; pulse echo ultrasonic method; shear bulk acoustic waves propagatiion; temperature 293 K to 298 K; Crystals; Surface acoustic waves; Temperature measurement; Ultrasonic variables measurement; Velocity measurement;
Conference_Titel :
Ultrasonics Symposium (IUS), 2012 IEEE International
Conference_Location :
Dresden
Print_ISBN :
978-1-4673-4561-3
DOI :
10.1109/ULTSYM.2012.0623
