ACOUSTIC PROPERTIES OF POLYETHYLENE NEAR THE MELTING POINT.

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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

Author(s):
Hartmann, Bruce ; Jarzynski, Jacek
Author Organization(s):
NAVAL ORDNANCE LAB WHITE OAK MD
Descriptive Note:
Interim rept.,
Pagination:
0036

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NOLTR-69-83
Project Number(s):
MAT-03L-000/F008-98-01
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*POLYETHYLENE PLASTICS, ULTRASONIC PROPERTIES), SOUND TRANSMISSION, ABSORPTION, ATTENUATION, PHASE STUDIES
Field(s)/Group(s):
Plastics, Solid State Physics
Report Date:
1969 Jun 04