Formation process and properties of aluminium–chromium slag
Formation process and properties of aluminium–chromium slag
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DOI：
10.1016/j.ceramint.2018.05.247
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发表时间：
2018-09
影响因子：
5.2
通讯作者：
Pengda Zhao;Han Zhang;G. Hongjun;Zhu Yuqian;Jun-Ling Yu;Fan Rundong-;Huizhong Zhao
中科院分区：
文献类型：
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作者：
Pengda Zhao;Han Zhang;G. Hongjun;Zhu Yuqian;Jun-Ling Yu;Fan Rundong-;Huizhong Zhao
为实现铝铬渣的经济回收利用，对铝铬渣的形成过程和性能进行了研究，包括化学组成、物相组成、物理性能和显微组织。铝铬渣的主要化学成分为al2o3和Cr2O3；Cr、CaO和MgO等也以杂质的形式存在。主相是铝和铬氧化物的固溶体；耐火度高，高温下力学性能好，化学成分相对稳定。CaO是主要挥发性成分；CaO含量的变化会影响炉渣的导热系数和高温线性热膨胀，从而影响炉渣的力学性能。
In order to realize the application of aluminium–chromium slag for economical recycling, its formation process and properties, including the chemical composition and phase composition, physical properties, and microstructure, were studied. The main chemical components of aluminium–chromium slag are Al2O3and Cr2O3; Cr, CaO, and MgO, among others, are also present as impurities. The main phase is a solid solution of aluminium and chromium oxides; this possesses high refractoriness, good mechanical properties at high temperature, and relative stability in chemical composition. CaO is the main volatile component; variations in the CaO levels affect the thermal conductivity and high-temperature linear thermal expansion, and thus, the mechanical properties of the slag.