scholarly journals Radiation damage studies related to nuclear waste forms

1981 ◽  
Author(s):  
W.J. Gray ◽  
J.W. Wald ◽  
R.P. Turcotte
Keyword(s):  
Radiation Damage ◽  
Nuclear Waste ◽  
Waste Forms ◽  
Nuclear Waste Forms

A Study of Radiation Effects in Curium-Doped Gd2Ti2O7 (Pyrochlore) and CaZrTi2O7 (Zirconolite)

1981 ◽  
Vol 11 ◽  
Author(s):  
J.W. Wald ◽  
P. Offemann
Keyword(s):  
Radiation Damage ◽  
Nuclear Waste ◽  
Radiation Effects ◽  
Laboratory Data ◽  
Primary Host ◽  
Waste Forms ◽  
Rare Earth Titanate ◽  
Effects Of Radiation ◽  
Similar Phase ◽  
Nuclear Waste Forms

Radiation effects studies in both glass and glass ceramic nuclear waste forms have identified a rare-earth titanate phase of the general formula (RE) 2Ti207 which is capable of acting as a host phase for actinides.1,2 Ringwood and co-workers3 have also proposed a structurally similar phase, zirconolite (CaZrTi2 07), as one of the primary host phases in the SYNROC waste form. Data from these and other previous studies, as well as mineralogical information available on these titanate phases, have not provided an unambiguous interpretation of the effects of radiation damage relative to nuclear waste forms. This paper reports new laboratory data concerning radiation damage effects in both of these phases.

Crystalline Titanate Ceramic Nuclear Waste Forms: Leaching and Radiation Damage

1985 ◽  
Vol 68 (6) ◽  
pp. 330-337 ◽  
Author(s):  
R. G. DOSCH ◽  
C. J. NORTHRUP ◽  
T. J. HEADLEY
Keyword(s):  
Radiation Damage ◽  
Nuclear Waste ◽  
Waste Forms ◽  
Nuclear Waste Forms ◽  
Titanate Ceramic

scholarly journals Ab Initio Investigation of Helium Mobility in La2Zr2O7 Pyrochlore

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 667
Author(s):  
Yanxia Lu ◽  
Qing Peng ◽  
Chenguang Liu
Keyword(s):  
Nuclear Waste ◽  
Density Functional ◽  
Minimum Energy ◽  
Elastic Band ◽  
Waste Forms ◽  
Band Method ◽  
And Migration ◽  
High Level ◽  
Migration Pathways ◽  
Nuclear Waste Forms

The α-decay of incorporated actinides continuously produces helium, resulting in helium accumulation and causing security concerns for nuclear waste forms. The helium mobility is a key issue affecting the accumulation and kinetics of helium. The energy barriers and migration pathways of helium in a potential high-level nuclear waste forms, La2Zr2O7 pyrochlore, have been investigated in this work using the climbing image nudged elastic band method with density functional theory. The minimum energy pathway for helium to migrate in La2Zr2O7 is identified as via La–La interstitial sites with a barrier of 0.46 eV. This work may offer a theoretical foundation for further prospective studies of nuclear waste forms.

Using “radioparagenesis” to design robust nuclear waste forms

2010 ◽  
Vol 3 (1) ◽  
pp. 130-135 ◽  
Author(s):  
C. Jiang ◽  
B. P. Uberuaga ◽  
K. E. Sickafus ◽  
F. M. Nortier ◽  
J. J. Kitten ◽  
...  
Keyword(s):  
Nuclear Waste ◽  
Waste Forms ◽  
Nuclear Waste Forms

MCC-1: A Standard Leach Test for Nuclear Waste Forms

1982 ◽  
Vol 56 (2) ◽  
pp. 306-312 ◽  
Author(s):  
D.M. Strachan ◽  
R. P. Turcotte ◽  
B. O. Barnes
Keyword(s):  
Nuclear Waste ◽  
Waste Forms ◽  
Leach Test ◽  
Nuclear Waste Forms

Hydrothermal Reactivity of Simulated Nuclear Waste Forms and Water-Catalysed Waste-Rock Interactions

1979 ◽  
pp. 329-340 ◽  
Author(s):  
G. J. McCarthy ◽  
Sridhar Komarneni ◽  
Barry E. Scheetz ◽  
William B. White
Keyword(s):  
Nuclear Waste ◽  
Waste Rock ◽  
Waste Forms ◽  
Nuclear Waste Forms
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