Interfacial interaction between quasi-binary oxides (MgAl2O4 and Y3Al5O12) and liquid aluminum
Interfacial interaction between quasi-binary oxides (MgAl2O4 and Y3Al5O12) and liquid aluminum
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DOI：
10.1007/s10853-012-6774-7
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发表时间：
2012-08
影响因子：
4.5
通讯作者：
N. Froumin;Meirav Piness;S. Barzilai;Michael Aizenshtein;N. Frage
中科院分区：
文献类型：
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作者：
N. Froumin;Meirav Piness;S. Barzilai;Michael Aizenshtein;N. Frage
在冶金实践中，反应熔体(如铝)和坩埚材料之间缺乏兼容性是一个反复出现的问题。热力学上稳定的氧化物通常用作坩埚材料。本文采用座滴法研究了准二元氧化物(MgAl2O4和YAG)与液态铝的相互作用。在这两个体系中，在1273-1523℃温度范围内，接触角从120°下降到40°。在镁铝氧化物与铝液相互作用后，铝中未检测到镁的存在，而在铝熔体与石榴石相互作用后，有可检测到的Y元素在熔体中溶解。Al-Mg-O和Al-Y-O三元体系的热力学性质决定了界面相互作用的差异。
The lack of compatibility between reactive melts, such as aluminum, and crucible materials is a recurrent problem in metallurgical practice. Thermodynamically stable oxides are commonly used as crucible materials. In the present work, the interaction of the quasi-binary oxides (MgAl2O4and YAG) with liquid Al was studied by the sessile drop method. In both systems, the contact angle decreases from 120 to 40° in the 1273–1523 K temperature range. No presence of Mg in Al was detected after the interaction between MgAl2O4and liquid Al, whereas a detectable amount of Y was dissolved in the melt following the interaction between YAG and molten Al. The differences in the interaction at the interface in the studied systems are attributed to the thermodynamic properties of the ternary Al–Mg–O and Al–Y–O systems.