Accession Number:
AD0692377
Title:
ACOUSTIC PROPERTIES OF POLYETHYLENE NEAR THE MELTING POINT.
Descriptive Note:
Interim rept.,
Corporate Author:
NAVAL ORDNANCE LAB WHITE OAK MD
Personal Author(s):
Report Date:
1969-06-04
Pagination or Media Count:
36.0
Abstract:
Ultrasonic absorption and velocity measurements were made on high density polyethylene to above the melting point. The measurements were done at 53 kHz and showed a maximum in absorption in excess of 10 dbcm above the room temperature absorption. A simple two state theoretical model crystalline and amorphous correctly predicted the shape of the absorption curve but not the magnitude of the peak. Author
Descriptors:
Subject Categories:
- Plastics
- Solid State Physics