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Title: The effect of high-level waste glass composition on spinel liquidus temperature

Conference ·
OSTI ID:1059492
 [1];  [2];  [2];  [2];  [2]
  1. Department of Energy, Office of River Protection, Richland, Washington (United States)
  2. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Spinel crystals precipitate in high-level waste glasses containing Fe, Cr, Ni, Mn, Zn, and Ru. The liquidus temperature (T{sub L}d) of spinel as the primary crystallization phase is a function of glass composition, and the spinel solubility (c{sub o}) is a function of both glass composition and temperature (T). Previously reported models of T{sub L} as a function of composition are based on T{sub L} measured directly, which requires laborious experimental procedures. Viewing the curve of c{sub o} versus T as the liquidus line allows a significant broadening of the composition region for model fitting. This paper estimates T{sub L} as a function of composition based on c{sub o} data obtained with the X-ray diffraction technique.

Research Organization:
Hanford Site (HNF), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Environmental Management (EM) (United States)
DOE Contract Number:
DE-AC27-08RV14800
OSTI ID:
1059492
Report Number(s):
ORP-53939-FP REV 0; TRN: US1300293
Resource Relation:
Conference: 10th International Symposium on Crystallization in Glasses and Liquids, Goslar (Germany), 23-26 Sep 2012
Country of Publication:
United States
Language:
English