Mechanical and electrical properties of B 4 C–CrB 2 ceramics fabricated by liquid phase sintering
Source abstract
Abstract
Abstract B 4 C based ceramic composites with additions of CrB 2 up to 25 mol% were fabricated by hot pressing at 2050 °C with a low applied load of 5 MPa. The CrB 2 addition enhanced the densification of B 4 C due to the formation of CrB 2 –B 4 C eutectic liquid. Both a high strength of 684 MPa and a modest fracture toughness of 3.2 MPa m 1/2 were obtained for the B 4 C– 22.5 mol% CrB 2 specimen. Furthermore, the electrical conductivity was increased remarkably for the specimens with more than 15 mol% CrB 2 , which was attributed to the formation of three-dimensional network of the electrically conductive CrB 2 phase.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Boron and Carbon Nanomaterials Research · MXene and MAX Phase Materials
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References (27)
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