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EELS of colloids in Mg{sup +} implanted MgAl{sub 2}O{sub 4} spinel

Conference ·
OSTI ID:10156900
 [1];  [2]
  1. Oak Ridge Inst. for Science and Education, TN (United States)
  2. Oak Ridge National Lab., TN (United States)
During 2-MeV Mg{sup +} implantation at 25 C to 2.8{times}10{sup 21}/m{sup 2}, dislocation loops are formed at midrange depths (0.5-1.0{mu}m) on {l_brace}110{r_brace} and {l_brace}111{r_brace}. No evidence was found for the dark field images to be hexagonal metallic Mg; the colloids are suggested to be either metallic Al or another phase coherent with surrounding spinel. Regression analysis of low-loss spectra and diffraction data are consistent with the colloids in the implanted ion region being metallic Al, although the colloids could be metallic Mg in a metastable cubic structure.
Research Organization:
Oak Ridge National Lab., TN (United States); Oak Ridge Inst. for Science and Education, TN (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC05-84OR21400; AC05-76OR00033
OSTI ID:
10156900
Report Number(s):
CONF-940753--12; ON: DE94012756
Country of Publication:
United States
Language:
English