High sphericity and diameter controllable B4C ceramic pellets prepared via simple low-cost PVA assisted planet-type rotation method. Issue 1 (1st January 2021)

• Record Type: Journal Article
• Authors: Ye, Diyin; Chen, Ruichong; Qi, Jianqi; Shi, Yanli; Huang, Zhangyi; Wang, Xiuling; Wang, Hailiang; Guo, Hao; Liao, Zhijun; Lu, Tiecheng
• Is Part Of: Ceramics international. Volume 47:Issue 1(2021)
• Page Start: 836
• Page End: 841
• Publication Date: 2021-01-01
• Subjects: B4C -- Polyvinyl alcohol (PVA) -- Ceramic pellets -- Planet-type rotation method; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.08.195
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: B4 C ceramic pellets with diameter smaller than 0.7 mm have been simply fabricated via polyvinyl alcohol (PVA) assisted planet-type rotation method. Only commercial B4 C powders and tiny amounts of PVA are needed in the experiment. The PVA solution is used to modify the commercial B4 C powders. And the powders with adhesive properties are spheroidized to form green pellets during the rotation process. Results show that the green B4 C pellets exhibit uniform size distribution and high sphericity. The appropriate diameter of 0.61 mm and high sphericity of 97.15% can be obtained by controlling the rotation time and the concentration of PVA solution. This fabrication method provides a low-cost and simple way to prepare B4 C ceramic pellets with various diameters and high sphericity, and also sheds light on the mass production of other ceramic microspheres.