Experimental study on the phase formation for the Mg–B system in Ar atmosphere
Experimental study on the phase formation for the Mg–B system in Ar atmosphere
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DOI：
10.1016/j.jallcom.2006.07.112
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发表时间：
2007-06
影响因子：
6.2
通讯作者：
S. Yan;G. Yan;Changsheng Liu;Yafeng Lu;Lian Zhou
中科院分区：
文献类型：
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作者：
S. Yan;G. Yan;Changsheng Liu;Yafeng Lu;Lian Zhou
采用偶扩散技术和差示扫描量热法（DSC）研究了Mg-B系在氩气气氛中的相形成过程。扩散实验结果表明，镁与硼之间的固-固反应是通过镁向硼中的扩散进行的。不同化学计量比的Mg和B的DSC曲线表明，Mg-B体系在升温过程中依次发生固-固反应、Mg熔化和液-固反应。根据DSC和扩散偶联的结果，讨论了Mg-B体系的反应模型。
We have investigated the phase formation for the Mg–B system in an argon atmosphere using the couple diffusion technique and differential scanning calorimetry (DSC). The diffusion experimental result indicates that the solid–solid reaction between magnesium and boron is carried out by magnesium diffusing into boron. DSC curves with different stoichiometric compositions of magnesium and boron as MgxB2(x=0.1, 0.5, 1.0, 1.5, 3.0) show that the solid–solid reaction, Mg melting and liquid–solid reaction occur in turn for the Mg–B system during rising temperature. Based on the results of DSC and couple diffusion, a reaction model for the Mg–B system was discussed.