Comparative study of Synroc-C ceramics produced by hot-pressing and inductive melting
- SIA Radon, Moscow (Russian Federation)
- Inst. of Geology of Ore Deposits, Moscow (Russian Federation)
- ANSTO, Menai, New South Wales (Australia)
Three Synroc-C samples, containing simulated high level waste were studied. One was produced by the conventional hot-pressing method at ANSTO, Australia, and the others were obtained using cold crucible technology at Radon, Russia. One of the melted samples was prepared using the Australian sol-gel precursor and the second one was obtained from an oxide-nitrate mixture. It was established that the specimens have closely similar mineral compositions, with major hollandite, perovskite, zirconolite, and rutile. Small amounts of hibonite were also found. Unlike the hot-pressed Synroc containing metallic alloy particles, melted Synrocs contain molybdates. An investigation of mineral compositions and elemental distribution in the samples was carried out. Features of hot-pressed and melted ceramics were compared. Unit cell parameters of the Synroc phases were determined and preliminary results on durability of the melted Synroc are presented.
- OSTI ID:
- 572086
- Report Number(s):
- CONF-961202--
- Country of Publication:
- United States
- Language:
- English
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