“…A chapter of book [65] is devoted to SPS materials, classified into boride, boride-boride, carbide, boride-carbide, and entropy stabilized boride UHTMs (Ultra-High-Temperature Materials); it discusses the effect of each on their SPS. Another chapter [66] aims to describe synthesis the titanium-based materials, which are of special interest. Dense B 4 C, with a theoretical density level of 95.0-98.6%, obtained using SPS in an argon/nitrogen atmosphere was tested [67] at both room temperature and 1600 • C in order to estimate flexural strength.…”