Abnormal Internal Friction Peaks in Single-Crystal Ice.

A series of sharp skewed internal friction peaks were observed during warming of single-crystal ice after cooling below -120 C (153 K), the cubic-hexagonal transition temperature. The peaks were higher when the strain amplitude was lower. Since handling and annealing strongly affect the occurrence o...

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Bibliographic Details
Main Authors: Stallman,P E, Itagaki,K
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1977
Subjects:
Snow
Ice and Permafrost
Crystallography
*ICE
*CRYSTAL DEFECTS
CRYSTAL STRUCTURE
PHYSICAL PROPERTIES
STRAIN(MECHANICS)
CRYSTALS
COOLING
X RAYS
DISLOCATIONS
SKEWNESS
THERMAL STRESSES
INTERNAL FRICTION
TWINNING(CRYSTALLOGRAPHY)
Ice crystals
PE61102A
AS52A
WU002
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA045412
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA045412
Description
Summary:A series of sharp skewed internal friction peaks were observed during warming of single-crystal ice after cooling below -120 C (153 K), the cubic-hexagonal transition temperature. The peaks were higher when the strain amplitude was lower. Since handling and annealing strongly affect the occurrence of the skewed peaks, those peaks are probably related to the stacking fault process in hexagonal-cubic transition. (Author)

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