Neutron adsorption performance of Dy₂TiO₅ materials obtained from powders synthesized by the molten salt method

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• 作者：Xue Guo^a ; ^b ; Yurun Feng^a ; ^b ; Jiaxing Zhao^a ; ^b ; Li Ma^a ; ^b ; Qisong Li^a ; ^b ; Zhao Zhang^a ; ^b ; Hongyu Gong^a ; ^b ; ; Yujun Zhang^a ; ^b ; ^{yujunzhangcn@163.com}
• 关键词：Titanates ; Powders ; Agglomeration ; Mechanical properties ; Neutron adsorption
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：43
• 期：2
• 页码：1975-1979
• 全文大小：1377 K
• 卷排序：43

文摘

Dy2TiO5 powders were synthesized by molten salt and solid-state methods. The influences of molten medium on phase compositions and microstructures were analyzed. The addition of molten salt lowered significantly the synthesis temperature and resulted in uniform powders. Green bodies compacted from the prepared powders were pressureless sintered at 1600 °C. Sinterability, mechanical properties and neutron absorption performance of the sintered pellets were studied. Results showed that molten salt synthesis resulted in materials with higher fracture toughness and bending strength, excellent hardness and neutron adsorption performance compared to the solid-state process. The neutron absorption rate reached 86.6% for 8 cm thick pellets.