Oxidation behavior of spark plasma sintered ZrC–SiC composites obtained from the polymer-derived ceramics route

Syntheses of ZrC–SiC nanopowder via sol–gel method

“…On the other hand, introducing sintering aid, such as silicon carbide [7,12,13], is also a very common technique to improve the sintering behavior of ZrC. Meanwhile, introduce of SiC can also improve the oxidation resistance of ZrC-based ceramic material [8,13].…”

“…However, poor sinterability and low oxidation resistance in air limit its wide applications in extreme conditions [4,[7][8][9][10]. Using ultrafine ZrC powders with crystallite sizes down to the nanoscale as the raw materials is a promising way to improve the its sinterability [11].…”

Thermomechanical properties of a spark plasma sintered ZrC–SiC composite obtained by a precursor derived ceramic route

“…In our previous studies, it has been shown that the SiC can be introduced by mixing the ZrC powder with a SiC polymer precursor following the precursor derived ceramic (PDC) route [7,8]. In this way, the ZrC-SiC composites, made by densified by spark plasma sintering (SPS), have good oxidation resistance [9]. Indeed, the amount of SiC and the temperature were found to be critical parameters for the oxidation behaviour of such ZrC-SiC composites in ambient air.…”

“…This ZrC-30 wt% SiC composite has been selected since it exhibits a good oxidation resistance up to 1550°C [9], and hence its application as structural material can be considered up to such a high temperature. More particularly, the main objective is to study the effect of SiC on elastic properties, mechanical strength, and in particular on deformation mechanism induced during compressive creep tests at high temperature (at temperatures ranging from 1500 to 1600°C).…”

Ablation properties of ZrC-SiC-HfB2 ceramic with different amount of carbon fiber under an oxyacetylene flame

“…Recently, the ultra-high temperature ceramics (UHTCs) used in temperature protection systems and other components of hyper sonic aerospace vehicles have attracted much attention [7,8]. UHTCs are carbides, nitrides and borides of group IV and V transition metals such as ZrB 2 , HfB 2 , ZrC, TaC, HfC, HfN and ZrN [9]. Zirconium carbide (ZrC) is an extremely hard and refractory ceramic material due to its high melting point (3420°C), it has been placed in the UHTCs class [10].…”