A novel mass production method for Li2TiO3 tritium breeder ceramic pebbles using polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP) assisted granulation method. Issue 4 (March 2020)

• Record Type: Journal Article
• Authors: Wang, Hailiang; Guo, Hao; Chen, Ruichong; Zeng, Yuanyuan; Yang, Mao; Gong, Yichao; Shi, Yanli; Ye, Diyin; Liao, Zhijun; Qi, Jianqi; Shi, Qiwu; Lu, Tiecheng
• Is Part Of: Ceramics international. Volume 46:Issue 4(2020)
• Page Start: 4167
• Page End: 4173
• Publication Date: 2020-03
• Subjects: Lithium titanite -- Tritium breeder ceramic pebble -- Mass production -- PVA and PVP assisted granulation method (APG); Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.10.134
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: A novel mass production method of lithium titanite (Li2 TiO3 ) tritium breeder ceramic pebbles using polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP) assisted granulation method (APG) was proposed. A binder solution of polyvinyl alcohol (PVA) was used to modify the Li2 TiO3 precursor powder. The powders with adhesive properties were prilled to form green pebbles (GPs) by spheronization at a low rotation speed and spraying with polyvinyl pyrrolidone (PVP), in several cycles. Then, the density and the crush load of the GPs were improved by high-speed rolling. Finally, the ceramic pebbles were produced by sintering. The phase, the microstructure, and the crush load of the ceramic pebbles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and with a universal tester, respectively.