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B4C–TiB2 composite ceramics with adjustable mechanical and electrical properties - EurekAlert


<p>In recent years, electro-conductive composite ceramics have gradually become a research hotspot in the functionalization of structural ceramics. However, the improvement of conductivity generally achieved at the cost of increasing the content of conductive phases or sacrificing the mechanical properties of the composite ceramics. Therefore, achieving high conductivity of composite ceramics at low conductive phase content is of great significance. In this study, electrically conductive B<sub>4</sub>C&ndash;TiB<sub>2</sub> composite ceramics containing only 15 vol% TiB<sub>2</sub> were prepared by a two-step spark plasma sintering process, and their mechanical and electrical performances were adjusted by the optimal particle size coupling of raw material powders.</p>

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