Effect of Stainless Steel Can/Glass-Ceramic Interaction Layer on Aqueous Durability

Conference · Sun Jul 01 04:00:00 EDT 2007

OSTI ID:21062398

McGlinn, Peter J; Zhang, Yingjie; Li, Huijun; Payne, Timothy E ^[1]

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1. Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights (Australia)

Calcined high-level radioactive waste (HLW) stored at the Idaho National Laboratory (INL) will eventually be immobilised in a suitable wasteform before disposal. A tailored glass-ceramic wasteform, produced by hot isostatic pressing (HIPing) in stainless steel (SS) cans, has been developed at the Australian Nuclear Science and Technology Organisation (ANSTO) as a cost-saving alternative to glass which would improve waste loading and density, and reduce waste volume. We have studied the SS/wasteform interactions under HIPing conditions to understand whether such interactions would have any detrimental effect on long-term wasteform stability. This has been demonstrated by carrying out aqueous durability tests, under near-neutral and alkaline conditions, on the wasteform at the interaction layer, and on the wasteform distal to this reaction edge. Reaction during HIPing resulted in verifiable Cr diffusion from the can wall into the wasteform, yet without any detectable detrimental impact on the HIP can or the aqueous durability of the wasteform. (authors)

• Research Organization: Materials Research Society, 506 Keystone Drive, Warrendale, PA, 15086-7573 (United States)
• OSTI ID: 21062398
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CERAMICS
DIFFUSION
GLASS
HIGH-LEVEL RADIOACTIVE WASTES
HOT PRESSING
LAYERS
STABILITY
STAINLESS STEELS
WASTE FORMS