Microstructure and properties of ZrB2–SiC composites prepared by spark plasma sintering using TaSi2 as sintering additive

Mechanical Properties of Zirconium‐Diboride Based UHTCs

“…Guo [64] investigated the effect of SiC additions to ZrB 2 -20 vol% MoSi 2 and ZrB 2 -40 vol% MoSi 2 ceramics. Additions of SiC to ZrB 2 -TaSi 2 [88,89] resulted in similar trends in mechanical properties as additions to ZrB 2 -MoSi 2 . Further, toughness increased with the addition of SiC, but was relatively insensitive to the amount.…”

“…room-temperature flexure strength and fracture toughness as a function of sic content for Zrb 2 -Mosi 2 -sic and Zrb 2 -tasi 2 -sic ceramics[64,88,89]. room-temperature flexure strength and fracture toughness as a function of sic content for Zrb 2 -Mosi 2 -sic and Zrb 2 -tasi 2 -sic ceramics[64,88,89].…”

Microstructure evolution of ZrB2–MoSi2 composite coatings at middle and high temperatures

“…Some methods have been applied to fabricate bulk UHTCs, including pressureless sintering [1], hot pressing [2], reactive hot-pressing [3], spark plasma sintering [4] and so on, most of them are energy and time consuming. Moreover, the unsatisfactory mechanical properties of bulk UHTCs, such as low toughness, restrict their extensive applications [5].…”

ZrO2 removing reactions of Groups IV–VI transition metal carbides in ZrB2 based composites

“…1,4,7 In recent years, much effort has been devoted to seek proper third phases to improve both the densification process and the properties of ZrB 2 -SiC. 1 tiple effects they induce once added to ZrB 2 -composites.…”