Journal
JOURNAL OF INORGANIC MATERIALS
Volume 36, Issue 4, Pages 355-364Publisher
SCIENCE PRESS
DOI: 10.15541/jim20200366
Keywords
high-entropy transition metal carbide; configurational entropy; mechanical property; thermal conductivity; oxidation-resistance; review
Categories
Funding
- National Natural Science Foundation of China [51972027]
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High-entropy ceramics, especially high-entropy transition metal carbide ceramics (HETMCC), have unique properties and are considered potential candidates for the thermal protection system of hypersonic aircraft. However, research on HETMCC is still in the initial stage, requiring further exploration in theoretical design, preparation methods, and property studies.
As a new emergence material, high-entropy ceramics possess unique properties due to its high configurational entropy. Among these ceramics, high-entropy transition metal carbide ceramics (HETMCC) are expected to be the potential candidates for the thermal protection system of hypersonic aircraft. Compared with single-component ceramics, the comprehensive performance of single-phase HETMCC is greatly improved. At present, the research on HETMCC is still in the initial stage, and the composition design and theoretical analysis of HETMCC are lack of sufficient research support. In addition, it is necessary to further explore the preparation of high purity HETMCC. In terms of the properties of HETMCC, further in-depth research has been conducted. In this paper, the theoretical design and preparation methods of high-entropy ceramics are reviewed. Research progress of the mechanical properties, thermal conductivity, and oxidation resistance properties of HETMCC are introduced in detail. The concerned scientific issues of HETMCC are pointed out and their future development direction are also prospected.
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