Accession Number : AD0757121

Title :   Bombardment-Induced Amorphization in WO3 and Its Use in Deducing Mean Damage Ranges (Studies on Bombardment-Induced Disorder. VI),

Corporate Author : MCMASTER UNIV HAMILTON (ONTARIO) INST FOR MATERIALS RESEARCH

Personal Author(s) : Lam,Nghi Q. ; Kelly,Roger

Report Date : 28 FEB 1972

Pagination or Media Count : 10

Abstract : WO3, though at first sight simply another example of an anisotropic oxide subject to bombardment-induced amorphization, has particular importance in that the depth of the amorphization (R(a)) can be estimated with great accuracy. The procedure is based on preparing anodic WO3, crystallizing it on its metal substrate at 350 or 450C, bombarding it, and then making direct use of the brilliant interference colors. Only Kr impact was studied, the values of R(a) being found to lie in the region of 50 to 390 A for Kr energies of 4 to 35 keV. It is argued that such values of R(a) can be used to deduce the mean damage range. (Author Modified Abstract)

Descriptors :   (*TUNGSTEN COMPOUNDS, *ION BOMBARDMENT), OXIDES, CRYSTAL DEFECTS, CANADA, KRYPTON, DAMAGE, RADIATION EFFECTS

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE