Additives affecting properties of β-Li2TiO3 pebbles in a modified indirect wet chemistry process
Abstract
Lithium metatitanate (β-Li2TiO3) pebbles were fabricated via the modified indirect wet chemistry method. Effect of varied additives, as polyvinyl alcohol, glycerol, and agar on the properties evolution was investigated. The highest density is obtained by adding 2 wt% (weight percent) polyvinyl alcohol, 3 wt% glycerol, and 3 wt% agar, respectively. β-Li2TiO3 pebbles with relative sintered density of 92.4%T.D. (Theoretical Density), the ratio of the intensity of diffraction peak (002) to that of (-133) of about 2.93, about 1.58 mm in diameter, a better sphericity of 1.02, the particle size of 5-6 μm, and the well-developed surface layered structure are successfully fabricated with 3 wt% glycerol. Glycerol is beneficial to improving the properties by other fabrication method as well.
- Publication:
-
Journal of Nuclear Materials
- Pub Date:
- November 2016
- DOI:
- 10.1016/j.jnucmat.2016.08.037
- Bibcode:
- 2016JNuM..480..310Y
- Keywords:
-
- Lithium metatitanate (β-Li<SUB>2</SUB>TiO<SUB>3</SUB> pebbles);
- The indirect wet chemistry method;
- Polyvinyl alcohol;
- Glycerol;
- Agar