Accession Number : AD0608449
Title : PRECISION MEASUREMENT OF INTERNAL FRICTION IN NON-METALLIC MATERIALS.
Descriptive Note : Final rept.,
Corporate Author : WILKES COLL WILKES-BARRE PA
Personal Author(s) : Detwiler,D. P. ; Holden,S. J.
Report Date : OCT 1964
Pagination or Media Count : 25
Abstract : Internal friction measurements were made on an outstandingly good quartz crystal. Several internal friction peaks are observed and these are discussed. In addition a previously unreported anomaly is observed in the resonant frequency versus temperature curve for the quartz crystal. These measurements were made over a temperature range of approximately -125C to 300C. The internal friction of sodium chloride was measured at room temperature in a free decay apparatus. (Author)
Descriptors : (*QUARTZ, INTERNAL FRICTION), (*INTERNAL FRICTION, MEASUREMENT), CRYSTALS, MECHANICAL PROPERTIES, CRYSTAL DEFECTS, SODIUM COMPOUNDS, CHLORIDES, CRYOGENICS, NONMETALS
Distribution Statement : APPROVED FOR PUBLIC RELEASE