Accession Number : AD0634746

Title :   DISSOLUTION SPIRALS ON GAMMA-IRRADIATED LITHIUM FLUORIDE.

Descriptive Note : Technical rept.,

Corporate Author : MCMASTER UNIV HAMILTON (ONTARIO) DEPT OF METALLURGY AND METALLURGICAL ENGINEERING

Personal Author(s) : Ives, M. B. ; Ramachandran,T. R.

Report Date : JUN 1966

Pagination or Media Count : 19

Abstract : Double-spiral features have been observed at high resolution on lithium fluoride (100) surfaces etched in distilled water containing from 0.1 to 9 ppm ferric ions (as ferric chloride). The models proposed for similar features on other materials are reviewed and rejected in favour of a mechanism involving the formation of prismatic loops produced by vacancy condensation following gamma-irradiation. In preference to the existence of dislocations in lithium fluoride with large Burgers Vector, a series of 'stacked' loops is suggested. (Author)

Descriptors :   (*LITHIUM COMPOUNDS, FLUORIDES), ETCHED CRYSTALS, IRON, IONS, GAMMA RAYS, SURFACE PROPERTIES, SURFACES, CRYSTAL DEFECTS, IRON COMPOUNDS, CHLORIDES

Subject Categories : Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE