Accession Number:

AD0720021

Title:

Nucleation of Parasite Crystals in Constitutionally Supercooled Water on the Surface of Growing Ice,

Descriptive Note:

Corporate Author:

MCGILL UNIV MONTREAL (QUEBEC) DEPT OF PHYSICS

Personal Author(s):

• Kavjic,G.
• Brajovic,V.

Report Date:

1970-03-16

Pagination or Media Count:

6.0

Abstract:

Nucleation of parasite crystals in front of an ice mosaic bicrystal growing vertically upwards from a solution is observed during the freezing of a dilute salt solution. It appears in the presence of a constitutionally supercooled layer ahead of a solid-liquid interface and shows a curious dependence of parasite and mother crystal on their crystallographic orientations. The formation of parasites is also observed in front of the C sub v crystals growing downwards, i.e. the crystals with the C axis being perpendicular to the solid-liquid interface. Author

Descriptors:

• (*ICE
• *CRYSTAL GROWTH)
• NUCLEATION
• SUPERCOOLING
• SODIUM CHLORIDE
• IMPURITIES
• CANADA

Subject Categories:

• Physical Chemistry
• Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE