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Title: X-ray absorption spectroscopy characterization of embedded and extracted nano-oxides

Here, the chemistries and structures of both embedded and extracted Ysingle bondTisingle bondO nanometer-scale oxides in a nanostructured ferritic alloy (NFA) were probed by x-ray absorption spectroscopy (XAS). Y 2Ti 2O 7 is the primary embedded phase, while the slightly larger extracted oxides are primarily Y 2TiO 5. Analysis of the embedded nano-oxides is difficult partly due to the multiple Ti environments associated with different oxides and those still residing in matrix lattice sites. Thus, bulk extraction followed by selective filtration was used to isolate the larger Y 2TiO 5 oxides for XAS, while the smaller predominant embedded phase Y 2Ti 2O 7 oxides passed through the filters and were analyzed using the log-ratio method.
Authors:
 [1] ; ORCiD logo [2] ;  [2] ;  [1] ;  [2] ;  [3]
  1. Univ. of California, Santa Barbara, CA (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Univ. of Idaho, Moscow, ID (United States)
Publication Date:
Report Number(s):
BNL-113799-2017-JA
Journal ID: ISSN 0925-8388
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Journal of Alloys and Compounds
Additional Journal Information:
Journal Volume: 699; Journal Issue: C; Journal ID: ISSN 0925-8388
Publisher:
Elsevier
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; nanostructured materials; nuclear reactor materials; synchrotron radiation; EXAFS
OSTI Identifier:
1357955
Alternate Identifier(s):
OSTI ID: 1416775