Our website is currently undergoing maintenance. Article records and full texts remain available. Submissions can be made through the Editorial Manager.

Low-Temperature Preparation of Lanthanum Hexaboride Fine Powder via Magnesiothermic Reduction in Molten Salt

K. Bao, C. Liu, B. Yazdani Damavandi, S. Zhang

Journal of Ceramic Science and Technology, Vol. 7, No. 4 (2016), pp. 403-408

DOI: 10.4416/JCST2016-00057

Download full article (PDF)

Abstract

Lanthanum hexaboride (LaB6) fine powder was synthesized from La2O3 and B2O3 using a molten-salt-assisted magnesiothermic reduction technique. The effects of salt type, Mg amount, heating temperature and time on the synthesis were investigated, and the relevant reaction mechanisms discussed. Among the three chloride salts (NaCl, KCl and MgCl2) attempted, MgCl2 showed the best accelerating effect. When 20 mol% excessive Mg was used, phase-pure LaB6 particles of ∼ 200 and ∼ 100 nm were obtained respectively after 4 h heating at 1000 °C, and 5 h at 900 °C.

Keywords

Lanthanum hexaboride, molten salt synthesis, cathode material.

View this issue · Article & DOI index