Oxidation of ZrC–30vol% SiC composite in air from low to ultrahigh temperature

Corrosion behavior of ZrC–SiC composite ceramics in LiF–NaF–KF molten salt at high temperatures

“…However, the poor chemical stability of ZrC at high temperatures in oxidizing atmosphere significantly limits its actual application [1,2]. A common approach to improve oxidation resistance is by incorporating Si-containing compounds into the ZrC matrix to form a protective SiO 2 -containing oxide scale [3][4][5]. Zhao et al prepared composites comprising ZrC and 30 vol% silicon carbide (SiC) [4].…”

“…A common approach to improve oxidation resistance is by incorporating Si-containing compounds into the ZrC matrix to form a protective SiO 2 -containing oxide scale [3][4][5]. Zhao et al prepared composites comprising ZrC and 30 vol% silicon carbide (SiC) [4]. The protective effect of the oxide scales is enhanced by the formed SiO 2 [4].…”

“…Zhao et al prepared composites comprising ZrC and 30 vol% silicon carbide (SiC) [4]. The protective effect of the oxide scales is enhanced by the formed SiO 2 [4]. ZrC-SiC composites can generate high-performance ceramics; these composites demonstrate the passivating characteristic of SiC and the high melting temperature, hardness, and thermal stability of ZrC [3][4][5].…”

“…The protective effect of the oxide scales is enhanced by the formed SiO 2 [4]. ZrC-SiC composites can generate high-performance ceramics; these composites demonstrate the passivating characteristic of SiC and the high melting temperature, hardness, and thermal stability of ZrC [3][4][5]. ZrC-SiC composites are broadly applied under extreme conditions and can be potentially use in fluoride salts because of their good thermomechanical properties, irradiation resistance, and chemical stability at high temperatures [2,6,7].…”

Conditions for fabricating single-phase (Ta, Zr)C carbide by SHS from mechanically activated reaction mixtures

“…Oxidation of tantalum monocarbide yields the Ta-O eutectic mixture that melts at temperatures as low as 1810°C [12] and is removed from the carbide surface by hot gas flow so that no protective layer is formed. In the case of zirconium carbide, oxidation at temperatures lower than 1800°C leads to crumbling of the oxide film and intense destruction of the material, whereas above 1800°C, zirconium carbide effectively resists oxidation [13][14][15][16]. Meanwhile, binary carbide (Ta,Zr)C with 20% ZrC has the highest melting point compared to those of monocarbides [1,3]; the addition of zirconium to tantalum-based protective coatings also enhances their resistance to high-temperature oxidation [17].…”