【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。更多还原

【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 Li 7B 6 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 Li 7B 6 and pure Li.更多还原