Title :
Nondestructive evaluation of synthetic quartz crystals
Author :
Usami, Yoko ; Oba, Katsuya ; Kurashige, Masakazu
Author_Institution :
Kinseki Ltd., Tokyo, Japan
Abstract :
On synthetic quartz crystals, quantitative evaluation about the correlation between peaked cobbles and dislocations with screw component was investigated. This correlation provides capability of nondestructive evaluation for dislocation density by cobble density. The authors developed a system to observe the cobbles effectively. It can be used for industrial field.
Keywords :
X-ray topography; dislocation density; nondestructive testing; quartz; screw dislocations; SiO2; cobble density; dislocation density; nondestructive evaluation; peaked cobbles; screw component; synthetic quartz crystals; Bars; Crystals; Etching; Fasteners; Interference; Microscopy; Optical reflection; Scattering; Shape; Surface topography;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition Jointly with the 17th European Frequency and Time Forum, 2003. Proceedings of the 2003 IEEE International
Print_ISBN :
0-7803-7688-9
DOI :
10.1109/FREQ.2003.1275170
