Microstructure and mechanical properties of spark plasma sintered TiB2 ceramics combined with a high-entropy alloy sintering aid |
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| Authors: | K Zhao B Niu J Zhang |
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| Affiliation: | State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | A high-entropy alloy (HEA), CoCrFeNiMn0.5Ti0.5, is used as a sintering aid for the densification of TiB2 sintered by spark plasma sintering. The HEA content in the starting TiB2-HEA mixture is varied from 0 to 10?wt-%. The microstructure and mechanical properties of the sintered samples are analysed and the optimum HEA content of 10% is found for the preparation of the TiB2-HEA ceramics, allowing combining high mechanical properties (Vickers hardness of 2174.64?HV and flexural strength of 427.69?MPa) and high relative density of 99.1%. |
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| Keywords: | Titanium diboride High-entropy alloys Spark plasma sintering |
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