Accession Number : AD0740274

Title :   An X-Ray Topographic Study of Defect Structures in Cyclotrimethylene Trinitramine,

Corporate Author : DEFENCE STANDARDS LABS MARIBYRNONG (AUSTRALIA)

Personal Author(s) : McDermott,I. T. ; Phakey,P. P.

Report Date : 01 OCT 1971

Pagination or Media Count : 7

Abstract : Low-defect-density crystals of cyclotrimethylene trinitramine have been grown from solution by slow cooling and examined by X-ray transmission topography (Lang method). Well-defined pendellosung fringe systems, line defects radiating from the seed crystal, and 'granular' structures have been observed. The extinction distance for a given reflection has been calculated from the fringe spacing and compared with the value derived from the structure factor. The line defects are shown to be grown-in dislocations whose character and Burgers vector have been determined in some cases. An explanation is suggested for the 'granular' structures. (Author)

Descriptors :   (*RDX, *CRYSTAL DEFECTS), X RAY PHOTOGRAPHY, CRYSTAL GROWTH, CRYSTAL LATTICES, AUSTRALIA

Subject Categories : Ammunition and Explosives
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE