DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
ADP002469
Title:
Standard Characterization Methods for the Determination of the Quality of Hydrothermally Grown Quartz,
Descriptive Note:
Corporate Author:
MOTOROLA INC CARLISLE PA QUARTZ OPERATIONS
Report Date:
1983-01-01
Pagination or Media Count:
7.0
Abstract:
Standard characterization techniques have been developed for the determination of the Q and the etch channel density of hydrothermally grown single crystal alpha quartz. Y-cut slices, for infrared Q evaluation, and AT-cut slices, for etch channel determinations, were respectively lapped to a three micron finish at a final thickness of 6.35mm or - 0.03mm. In order to properly characterize the Q of the as-grown quartz, the sample should be linearly translated through the beam so that a complete profile along the Z axis is obtained. To eliminate differences due to averaging techniques, the maximum alpha value calculated from the scan should be employed to safely characterize the Q of the quartz. Utilizing standard samples, the repeatibility of any alpha value was found to be less than or equal to or - 0.004.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE