(中南工业大学材料科学与工程系，*粉末冶金研究所，长沙 410083)
摘 要: 在真空电阻炉中熔制Li-B合金，并利用XRD分析和SEM观察研究了该合金的熔炼特性。结果证实合金在熔炼过程中，通过液(Li)-固(B或硼化物)的两次放热反应而完成合金化。在第一次反应后，合金熔体对铁质坩埚的润湿性明显增强，且随着搅拌时间增加，温度升高，其粘度逐渐增大。第二次反应后(530～550 ℃)合金熔体固化成稳定的由多孔隙Li7B6和填充于孔隙中的液态Li组成的复合材料。
关键字: 锂硼合金 熔炼特性 热电池 阳极材料
（Department of Materials Science and Engineering, *P/M Institute,
Central South University of Technology, Changsha 410083, P. R. China）
Abstract:The Li-B alloys were prepared in vacuum resistance heating furnace. The melting characteristics of alloys were studied by means of XRD and SEM. The results showed that there exist two exothermic reactions of liquid (Lithium)-solid(Boron or Boride) during the melting process. With the melting temperature rising up to 600℃, the viscosity of the melt gradually increases, and the melting process is completed until the melt is solidified into porous Li7B6-containing liquid lithium. When the melt was cooled below the melting point of lithium, alloys are completely solidified. The microstructures of the alloys are composed of porous Li7B6 and pure Li.
Key words: Li-B alloy; melting characteristics; thermal battery; anode material
