UHTCs: Ultra-High Temperature Ceramic Materials for Extreme Environment Applications

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Graphene NanoPlatelets reinforced tantalum carbide consolidated by spark plasma sintering (2013, background): “In contrast the edges of the burst in the TaC sample were smooth and glassy; these glassy phases in the TaC sample imply higher temperatures have been experienced as it indicate Ta2O5 has not only formed, but it has reached its melting point (1872 ̊C [150]) and resolidified.”
Prediction of the material with highest known melting point from ab initio molecular dynamics calculations (2015, background): “High-performance refractory materials [1–5] play an important role in applications ranging from gas turbines to heat shields for hypersonic vehicles.”
High-entropy high-hardness metal carbides discovered by entropy descriptors (2018, background): “. The resistance of disordered carbides to extreme heat [26{28], oxidation [23] and wear makes them promising ultra-high-temperature ceramics for thermal protection coatings in aerospace applications [29], and as high-hardness, relatively low density high-performance drill bits and cutting tools in ”