期刊
CERAMICS INTERNATIONAL
卷 45, 期 17, 页码 21858-21863出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2019.07.195
关键词
High entropy alloy; High entropy carbide; Carbide; Ceramic; Mechanical milling; Mechanosynthesis
资金
- University of Seville [2018/00000348]
A novel, homogeneous, nanostructured and equiatomic (TiZrHfVNb)C-5 High Entropy Carbide (HEC) was successfully synthesised in a powder form by a mechanosynthesis process from the elemental mixture. This synthesis method for HECs, not previously reported, is simple, reproducible and carried out at room temperature. During milling, the transition metals (Ti, Zr, Hf, V and Nb) alloying and the diffusion of carbon (introduced as graphite) into the alloy structure are simultaneously induced, obtaining the expected (TiZrHfVNb)C-5 HEC. The room temperature method employed contrasts with those reported in the bibliography from binary carbides that are carried out at a very high temperature (1800-2200 degrees C), with the consequent energy savings.
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