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Amorphization, Field Activated Sintering and Superplastic Forming of UHTCs
Advances in Science and Technology, 2014This article reports new events of amorphization, field activated sintering and superplastic forming of ultrahigh temperature ceramics (UHTCs), in order to provide an advanced method of the integrated material design and solid state synthesis on demand in the framework of material system science and technology.
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Development of UHTCs and coatings on their basis for TPS applications
2016Thanks to their extremely high melting point above 3000°C and their unique combination of thermo-physical and engineering properties, ultra-high temperature ceramics (UHTCs) and coatings on their basis are envisaged as promising candidates for application at very high temperature.
M Parco +7 more
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Joining of UHTC Composites Using Metallic Interlayer
Ultra-high temperatures ceramics (UHTCs) are the subject of intense worldwide research effort, and their stability in severe environments makes them candidates for aerospace, nuclear and solar energy applications. Widespread usage UHTCs requires the development of effective and reliable joining methods that facilitate the fabrication of large, complex ...Noritaka Saito +4 more
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Joining of UHTC Diborides using Metallic Interlayers
2014So-called Ultra-High Temperature Ceramics (UHTC) are the topic of reasonable and expanding worldwide research interest. The present work focused on ZrB2 and HfB2 which exhibit good thermo-mechanical and thermo-chemical properties, and good resistance to erosion and corrosion.
N. Saito K. Nakashima +4 more
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The importance of TEM analysis for UHTC development
2019Sintering is a crucial step for structural ceramics as it leads to the elimination of porosity and hence to the achievement of high thermo-mechanical performances. The class of materials known as ultra-high temperature ceramics (UHTCs) requires a combination of severe consolidation process, such high temperature above 2000°C and the application of ...
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Characterization of UHTCs containing various kinds of fibers
2014Different kinds of fibers, such as carbon or silicon carbide, were added to UHTC matrices to improve the fracture toughness. Several sintering additives were chosen for the densification (ZrSi2, Si3N4 and TaSi2) using various sintering cycles to identify the best temperature allowing densification of the matrix and minimal fiber degradation.
L Silvestroni, D Sciti
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Arc-jet testing of UHTC demonstrators with a sharp profile
2011The ultra-high-temperature ceramics (UHTCs) are currently the most studied key enabling technology for thermal protection structures (TPS) like wing leading edges, surface control components to be applied in the next generation of space vehicles flying at hypersonic speed or/and re-entering the Earth's atmosphere.
Silvestroni, Laura +2 more
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Polymer-Derived Ultra-High Temperature Ceramics (UHTCs) and Related Materials
PoliTO Springer Series, 2021Emanuel Ionescu +2 more
exaly
Fabrication and characterization of fibre reinforced UHTC composites
2019The thermal, chemical and mechanical environments typical of aero-propulsion applications, such as those characteristic of combustion chambers of high performance propulsion engines, introduce many problems from the point of view of materials. Next generation propellants have become more energetic, resulting in higher temperatures and very hostile ...
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