Leaching Properties of Immobilization of HLW into SrTiO₃ Ceramics

Abstract:

In this work, Strontium Titanate samples were synthsized by self-propagating high-temperature synthesis (SHS). Sr2+ directly took part in the synthesis process. As a result, immobilization limitation issue is basically resolved. The Strontium titanate was characterized by crystal structure, dense properties, leach rate, microstructure and scanning electron microscopy. And the synthesis process is feasible in technology and economy. It can be concluded that the strontium titanate synroc is a perfect material to immobilize HLW.

• Periodical: Advanced Materials Research (Volumes 332-334)
• Pages: 1807-1811
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.332-334.1807
• Online since: September 2011
• Authors: Rui Zhu Zhang, Yong Wei Gao, Jian Sheng Wang, Luke Li, Wan Shan Su
• Keywords: High-Level Radioactive Waste (HLW), Immobilisation, Self-Propagation High-Temperature Synthesis (SHS), Strontium Titanate

References

[1] Koch L. Minor actinide transmution –A waste management option. Less-Common Met Vol.122(1986), pp.371-382

DOI: 10.1016/0022-5088(86)90432-7

[2] LUO Shang-geng. Partitioning and transmutation of high-level radioactive wastes. Padiation protection Vol. 16,1(1996), pp.72-75

[3] ZhANG Yushan Development aspects of long-lived radiowaste transmutation processing.Nuclear physics review Vol. 14,4(1997), pp.251-258

[4] Ringwood A E, Kesson S E,Ware N G, et al.Immoblisation of high level nuclear reactor wastes in SYNROC. Nature Vol. 278,15(1979), p.219

DOI: 10.1038/278219a0

[5] Inoue T, Sakata M., Miyashiro H,et al. Drvelopment partitioning and transmutation technology for long-lived nuclides.Nucl.Technol Vol. 23(1991), p.206

DOI: 10.13182/nt91-a34506

[6] Muthuraman M, Arul Dhas N, Patil K C. Commbustion synthesis of oxide materials for nuclear waste immobilization.Bull. Mater. Sci Vol. 17,6(1994), pp.977-987

DOI: 10.1007/bf02757574

[7] Borovinskaya I P, Barinova T V, Ratnikov V I., et al. Consolidation of Radioactives Waste into Mineral-like Material by the SHS Method. Inter.. SHS Vol. 7,1(1998), pp.129-135

[8] Barinova T V, Borovinskaya I P, Ratnikov V I, et al. SHS Immobilization of radioactive Wastes.Kay Engineering Materials Vol. 217(2002), pp.193-200

DOI: 10.4028/www.scientific.net/kem.217.193

[9] GUO Ge-xin; HE Wen-chen; ZHOU Guo-xiang; WANG Ai-kun .Select on unit cell of strontium titanate during antiferrodistortive phase transition.Journal of Hebei University of Technology Vol. 32,1(2003), pp.31-33

[10] WU Qing; ZhAO Bin-yuan Hu Ke-ao. Preparation,structure and properties of perovskite type strontium titanate .New chemical materials Vol. 30,8(2002), pp.17-19

[11] C.M. Jantzen N.E. Bibler D.C. Beam,et al.,standard test method relative to durability of nuclear waste glasses: the product consistency test(PCT)version[S]USA,1991,30

DOI: 10.2172/6017524