A high-entropy alloy (HEA), CoCrFeNiMn 0.5 Ti 0.5 , is used as a sintering aid for the densification of TiB 2 sintered by spark plasma sintering. The HEA content in the starting TiB 2 -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 TiB 2 -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%.
The high-temperature storage stability of styrene-butadiene-styrene triblock copolymer (SBS) modified asphalt can be improved to some extent with the addition of phosphorus trichloride. The dynamic mechanical and physical properties of SBS-modified asphalts before and after adding phosphorus trichloride were studied respectively. The addition of phosphorus trichloride to asphalt improved the high-temperature performance of asphalt and reduced its temperature susceptibility to a great extent with unfavourable effect on low-temperature ductility. The addition of SBS to phosphorus trichloride modified asphalt increased the low-temperature ductility, viscosity of asphalt and improved its high-temperature performance further. Different SBS structures influenced the rheological and physical properties of asphalt before and after adding phosphorous trichloride.
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