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Title: XRD, Electron Microscopy and Vibrational Spectroscopy Characterization of Simulated SB6 HLW Glasses - 13028

Sample glasses have been made using SB6 high level waste (HLW) simulant (high in both Al and Fe) with 12 different frit compositions at a constant waste loading of 36 wt.%. As follows from X-ray diffraction (XRD) and optical and scanning electron microscopy (SEM) data, all the samples are composed of primarily glass and minor concentration of spinel phases which form both isometric grains and fine cubic (∼1 μm) crystals. Infrared spectroscopy (IR) spectra of all the glasses within the range of 400-1600 cm{sup -1} consist of the bands due to stretching and bending modes in silicon-oxygen, boron-oxygen, aluminum-oxygen and iron-oxygen structural groups. Raman spectra showed that for the spectra of all the glasses within the range of 850-1200 cm{sup -1} the best fit is achieved by suggestion of overlapping of three major components with maxima at 911-936 cm{sup -1}, 988-996 cm{sup -1} and 1020-1045 cm{sup -1}. The structural network is primarily composed of metasilicate chains and rings with embedded AlO{sub 4} and FeO{sub 4} tetrahedra. Major BO{sub 4} tetrahedra and BO{sub 3} triangles form complex borate units and are present as separate constituents. (authors)
Authors:
 [1] ;  [2] ; ;  [3] ; ;  [4]
  1. SIA Radon, 7th Rostovskii lane 2/14, Moscow 119121 (Russian Federation)
  2. (Russian Federation)
  3. Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry RAS, Staromonetniy lane 35, Moscow 100117 (Russian Federation)
  4. Savannah River National Laboratory, Building 773A, Aiken 29808 (United States)
Publication Date:
OSTI Identifier:
22224836
Report Number(s):
INIS-US--13-WM-13028
TRN: US14V0269045791
Resource Type:
Conference
Resource Relation:
Conference: WM2013: Waste Management Conference: International collaboration and continuous improvement, Phoenix, AZ (United States), 24-28 Feb 2013; Other Information: Country of input: France; 8 refs.
Research Org:
WM Symposia, 1628 E. Southern Avenue, Suite 9-332, Tempe, AZ 85282 (United States)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; ABSORPTION SPECTROSCOPY; ALUMINIUM; BORATES; BORON; CRYSTALS; GLASS; HIGH-LEVEL RADIOACTIVE WASTES; INFRARED SPECTRA; IRON; IRON OXIDES; OXYGEN; RAMAN SPECTRA; SCANNING ELECTRON MICROSCOPY; SILICON; SIMULATION; SPINELS; X-RAY DIFFRACTION