Immobilization of Radioactive Wastes into Perovskite Synrock by the SHS Method

Rui Zhu Zhang; Zhi Meng Guo; Cheng Chang Jia; Guangfeng Lu

doi:10.4028/www.scientific.net/MSF.475-479.1627

Paper Titles

Ternary Ceramics Ti₃SiC₂: Combustion Synthesis and the Reaction Mechanism
p.1609

Synthesis of Porous TiAl-Mn Intermetallic Compounds by Reactive Sintering Process
p.1615

Effect of Copper Content on the Microstructures and Properties of TiB₂ Based Cermets by SHS
p.1619

Effect of La₂O₃ on the Properties of Combustion-Synthesized Molybdenum Disilicide
p.1623

Immobilization of Radioactive Wastes into Perovskite Synrock by the SHS Method
p.1627

The Effects of Nitrogen Purity and Pressure on Combustion Synthesis of α-Si₃N₄ Powders
p.1631

Combustion Synthesis of Al₂O₃-30vol%ZrO₂ Nano-Submicron Structured Multiphase Ceramics
p.1635

Synthesis Ba₃(Ca_1.18Nb_1.82)O_9-δ with Sol-Gel Auto-Ignition Process and Its Electrical Conducting Property
p.1639

Comparison of Characteristics of BaTiO₃ Prepared by Different Process
p.1643

HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Immobilization of Radioactive Wastes into...

Immobilization of Radioactive Wastes into Perovskite Synrock by the SHS Method

Abstract:

This paper researched the fabrication of perovskite synrock by self-propagating high temperature synthesis (SHS) and the characterization of the products. This synthesis process is simpler, the fabricated synrock can immobilize waste loading up to 35wt% SrO with satisfied physical properties (density>4.2g•cm-3, open porosity<0.2%, Leach rate<1.0 g•m-2•d-1). The structure analyses by XRD and SEM/EDS show that the major phase is perovskite which well agrees with the design. It proves that SHS offer a suitable Sr-waste synroc which is favorable for geological disposal.