skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Three-dimensional mapping of crystalline ceramic waste form materials

Journal Article · · Journal of the American Ceramic Society
DOI:https://doi.org/10.1111/jace.14885· OSTI ID:1394065
 [1];  [1];  [1];  [1];  [2];  [2];  [3];  [3];  [4];  [2]; ORCiD logo [1]
  1. Univ. of Connecticut, Storrs, CT (United States). Dept. of Mechanical Engineering
  2. Clemson Univ., SC (United States). Dept. of Materials Science and Engineering
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource
  4. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
+ Show Author Affiliations

Abstract This work demonstrates the use of synchrotron‐based, transmission X‐ray microscopy ( TXM ) and scanning electron microscopy to image the 3‐D morphologies and spatial distributions of Ga‐doped phases within model, single‐ and two‐phase waste form material systems. Gallium doping levels consistent with those commonly used for nuclear waste immobilization (e.g., Ba 1.04 Cs 0.24 Ga 2.32 Ti 5.68 O 16 ) could be readily imaged. The analysis suggests that a minority phase with different stoichiometry/composition from the primary hollandite phase can be formed by the solid‐state ceramic processing route with varying morphology (globular vs. cylindrical) as a function of Cs content. The results presented in this work represent a crucial step in developing the tools necessary to gain an improved understanding of the microstructural and chemical properties of waste form materials that influence their resistance to aqueous corrosion. This understanding will aid in the future design of higher durability waste form materials.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515; NE0008260, CFA-14-6357; NE0008260; CFA-14-6357
OSTI ID:
1394065
Alternate ID(s):
OSTI ID: 1373824
Journal Information:
Journal of the American Ceramic Society, Vol. 100, Issue 8; ISSN 0002-7820
Publisher:
American Ceramic SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

References (20)

Nuclear Waste Disposal: Alternatives to Solidification in Glass Proposed journal April 1979
HIPed Tailored Hollandite Waste Forms for the Immobilization of Radioactive Cs and Sr journal May 2009
Structural Evolution in Hollandite Solid Solutions Across the A‐Site Compositional Range from Ba 1.33 Ga 2.66 Ti 5.34 O 16 to Cs 1.33 Ga 1.33 Ti 6.67 O 16 journal August 2016
Three-dimensional microstructural imaging methods for energy materials journal January 2013
Synthesis and magnetic properties of single-crystalline Na2-xMn8O16 nanorods journal January 2011
The SYNROC process: A geochemical approach to nuclear waste immobilization. journal January 1979
TXM-Wizard : a program for advanced data collection and evaluation in full-field transmission X-ray microscopy journal January 2012
Radius ratio tolerance factors and the stability of hollandites journal June 1986
Melt processed single phase hollandite waste forms for nuclear waste immobilization: Ba1.0Cs0.3A2.3Ti5.7O16; A=Cr, Fe, Al journal January 2014
Immobilisation of high level nuclear reactor wastes in SYNROC journal March 1979
Incorporation of Uranium in Zirconolite (CaZrTi2O7) journal July 2002
A-site compositional effects in Ga-doped hollandite materials of the form BaxCsyGa2x+yTi8−2x−yO16: implications for Cs immobilization in crystalline ceramic waste forms journal June 2016
Studies of (Cs,Ba)-hollandite dissolution under gamma irradiation at 95°C and at pH 2.5, 4.4 and 8.6 journal December 2011
Principles of Computerized Tomographic Imaging book January 2001
Analytic Tomography book January 2006
Al- and Ga-Doped TiO 2 , ZrO 2 , and HfO 2 : The Nature of O 2p Trapped Holes from a Combined Electron Paramagnetic Resonance (EPR) and Density Functional Theory (DFT) Study journal May 2015
Inductive cold crucible melting of actinide-bearing murataite-based ceramics journal October 2007
Fabrication, characterization, and leach testing of hollandite, (Ba,Cs)(Al,Ti) 2 Ti 6 O 16 journal October 2002
Plutonium and uranium accommodation in pyrochlore oxides journal March 2005
High Level Liquid Waste Solidification Using a “Cold” Crucible Induction Melter journal January 2000

Cited By (4)

Synthesis and phase structure of (Cs0.8−xBa0.4+x)(Al3+1.6+ xTi4+6.4− x)O16 ceramics using sol-spray pyrolysis route for immobilizing radioactive cesium journal May 2019
Compositional control of radionuclide retention in hollandite‐based ceramic waste forms for Cs‐immobilization journal December 2018
Simultaneous three‐dimensional elemental mapping of Hollandite and Pyrochlore material phases in ceramic waste form materials journal March 2019
An Interdisciplinary View of Interfaces: Perspectives Regarding Emergent Phase Formation journal October 2017

Similar Records

Cold crucible induction melter test for crystalline ceramic waste form fabrication: A feasibility assessment
Journal Article · Wed Jan 18 00:00:00 EST 2017 · Journal of Nuclear Materials · OSTI ID:1394065
+6 more
Compositional control of radionuclide retention in hollandite‐based ceramic waste forms for Cs‐immobilization
Journal Article · Mon Dec 31 00:00:00 EST 2018 · Journal of the American Ceramic Society · OSTI ID:1394065
+7 more
Alternative High-Performance Ceramic Waste Forms
Technical Report · Wed Feb 01 00:00:00 EST 2017 · OSTI ID:1394065

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
nuclear waste
processing
scanning electron microscopy
synchrotron
transmission x-ray microscopy
x-ray computed tomography