1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology,Wuhan 430081, China
2. Youshuntong (Wuhan) Science and Technology Consulting Service Co., Ltd., Wuhan 430081, China
Metal-boride ceramics have potential applications in aerospace, battery anode carrier materials, catalysts and other industrial fields, but the poor properties of powder materials restrict their wider application. The reactants in liquid media have a faster diffusion rate， the molten salt method takes advantage of this feature to complete the synthesis in a relatively short time and at a relatively low temperature. The prepared powder have significant advantages compared to other preparation methods in aspects such as purity, particle size distribution, morphology control, decentralized state and surface cleanliness. This paper summarizes the research progress in preparation of high quality boride powders by molten salt method in recent years, such as binary boride powder, ternary boride powder, high entropy diboride powder and boride compound powder. Their synthesis conditions, characterization, reaction process and mechanism were introduced. These studies can provide reference for the synthesis of other metal borides by molten salt method.