Overview of Advanced Sintering Technologies for High-entropy Ceramics
As a newly discovered ceramic material,high-entropy ceramics are highly valued,due to their unique structure and high entropy effects.However,the sluggish diffusion effect makes it difficult to densify high-entropy ceramics by using the conventional sintering technology,which requires several hours or even a dozen hours of heat preservation at high temperature,making the preparation process both time-and energy-consuming.With the development of advanced sintering techniques,such as flash sintering,spark plasma sintering and ultrafast high-temperature sintering,the preparation of high-entropy ceramics could be achieved for short time at low sintering temperature.The research progress of high-entropy ceramics prepared by using various advanced sintering technologies is analyzed and summarized.The principles,characteristics,advantages and development prospects of different sintering techniques are discussed.Also,the research direction of sintering methods for high-entropy ceramics is evaluated.
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维普
