Direct electrochemical synthesis of high-entropy alloys from metal oxides
Source abstract
Abstract
Abstract It has been demonstrated for the first time that high-entropy alloys can be synthesised by electrochemical reduction in a molten salt. This was accomplished by means of an electrolytic cell in which pre-mixed solid metal oxides were subjected to cathodic polarisation in an electrolyte of molten CaCl 2 salt at 1173 K, such that the equiatomic refractory alloys TiNbTaZr and TiNbTaZrHf were produced in a single-step alloying process. Structural investigations revealed that the TiNbTaZr alloy comprises two body-centred cubic phases while the TiNbTaZrHf alloy has one disordered body-centred cubic phase. Further examinations were carried out to assess the alloys’ morphological and mechanical properties. These novel findings promise a straightforward, low-energy and cost-affordable electrometallurgical process for the production of high-entropy alloys for advanced structural applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High Entropy Alloys Studies · High-Temperature Coating Behaviors · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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