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Title: Heavy ion irradiations on synthetic hollandite-type materials: Ba1.0Cs0.3A2.3Ti5.7O16 (A=Cr, Fe, Al)

Journal Article · · Journal of Solid State Chemistry
ORCiD logo [1];  [2];  [2];  [2];  [3];  [3];  [1];  [4]; ORCiD logo [1];  [5]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Alfred Univ., NY (United States). Kazuo Inamori School of Engineering and the New York State College of Ceramics
  3. Savannah River National Lab (SRNL), Aiken, SC (United States). Materials Science and Technology Directorate
  4. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  5. Univ. of New Mexico, Albuquerque, NM (United States). TEM Lab.

The hollandite supergroup of minerals has received considerable attention as a nuclear waste form for immobilization of Cs. Here, the radiation stability of synthetic hollandite-type compounds described generally as Ba1.0Cs0.3A2.3Ti5.7O16 (A=Cr, Fe, Al) were evaluated by heavy ion (Kr) irradiations on polycrystalline single phase materials and multiphase materials incorporating the hollandite phases. Ion irradiation damage effects on these samples were examined using grazing incidence X-ray diffraction (GIXRD) and transmission electron microscopy (TEM). Single phase compounds possess tetragonal structure with space group I4/m. GIXRD and TEM observations revealed that 600 keV Kr irradiation-induced amorphization on single phase hollandites compounds occurred at a fluence between 2.5×1014 Kr/cm2 and 5×1014 Kr/cm2. The critical amorphization fluence of single phase hollandite compounds obtained by in situ 1 MeV Kr ion irradiation was around 3.25×1014 Kr/cm2. The hollandite phase exhibited similar amorphization susceptibility under Kr ion irradiation when incorporated into a multiphase system.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Savannah River National Laboratory (SRNL), Aiken, SC (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5); USDOE National Nuclear Security Administration (NNSA); Kyocera Corp., Kyoto (Japan)
Contributing Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Grant/Contract Number:
AC52-06NA25396; AC04-94AL85000; AC02–06CH11357
OSTI ID:
1458922
Alternate ID(s):
OSTI ID: 1337199
Report Number(s):
LA-UR-15-29651; TRN: US1901522
Journal Information:
Journal of Solid State Chemistry, Vol. 239, Issue C; ISSN 0022-4596
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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