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Towards The Understanding Of Key Properties Of Ultra-high Temperature Ceramics For Hypersonic Applications | 31632
ISSN: 2169-0022

Journal of Material Sciences & Engineering
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Towards the understanding of key properties of ultra-high temperature ceramics for hypersonic applications

International Conference and Expo on Ceramics

Eugenio Zapata-Solvas

Posters-Accepted Abstracts: J Material Sci Eng

DOI: 10.4172/2169-0022.C1.026


Ultra-high temperature ceramics (UHTCs) are promising candidates for hypersonic applications as a consequence of their
high melting point, in excess of 3000ºC for ZrB2 and HfB2 UHTCs. The UHTCs community has traditionally focused on the
development of more oxidation resistant UHTCs composites in the last decade as a consequence of poor oxidation resistance of
monolithic UHTCs. However, hypersonic applications, such as in sharp nose cones (SNC) and sharp-leading edges (SLE), require
a combination of high temperature capability and high temperature strength, whereas high thermal conductivity is particularly
desirable due to greater thermal transport during exposure in high-temperature reactive environments, by conduction and radiation
back to the environment. At last but not least, UHTCs components have to ensure the structural stability of the hypersonic vehicle
and should be structurally stable under operating conditions. However, SiC-reinforced UHTCs are not structurally stable above
1800ºC in spite of being considered baseline UHTCs for hypersonic applications as a consequence of their high oxidation resistance
compared to other UHTCs composites and concentrate more than 50% of the research articles on UHTCs. In addition, there is a
lack of information about structural properties and deformation mechanisms active at high temperature of UHTCs. Therefore, there
is a needing for the understanding of UHTCs structural properties to perform a new approach for the development of UHTCs for
hypersonic applications, as it will be illustrated; Novel UHTCs components that maximize their structural stability and resistance
in addition to its oxidation resistance.


Eugenio Zapata-Solvas has completed his PhD studies on the role of grain boundaries in the plasticity of advanced ceramics at the University of Seville in 2008.
Then, he carried out Postdoctoral studies about physical and chemical properties of UHTCs at Imperial College London and about flash sintering of advanced
ceramics at the University of Oxford. He is currently a Research Fellow from the Materials Science Institute of Seville working on high temperature physical
properties of UHTCs and new technologies for ceramics sintering. He has published more than 20 papers in indexed journals.