Growth Twinning and Stacking Faults in Corundum.

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Abstract:

Several corundum crystals gorwn by the flux method were etched with hot KHSO4 and studied with an optical microscope. Examination showed a new form of line and pit pattern in addition to the more usual patterns formed by twin boundaries and dislocations. Several photographs and a simple model of atomic packing arrangement are presented to show that the new patterns probably are the result of stacking faults and partial dislocations. Author

Author(s):
Chase, A. B. ; Stofel, E. ; Janowski, K.
Author Organization(s):
AEROSPACE CORP EL SEGUNDO CALIF
Descriptive Note:
Rept. for Jul 61-Jan 63,
Pagination:
0030

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-0074(9230-01)-2, SAMSO-TR-73-303
Contract/Grant Number(s):
F04701-73-C-0074
Monitor Series:
TR-73-303
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*CORUNDUM, *TWINNING(CRYSTALLOGRAPHY)), DISLOCATIONS, CRYSTAL DEFECTS, DEFECTS(MATERIALS)
Field(s)/Group(s):
Ceramics, Refractories and Glass, Crystallography
Report Date:
1973 Oct 29