Results 1 to 10 of about 78 (74)

Advances in ultra-high temperature ceramics, composites, and coatings

open access: yesJournal of Advanced Ceramics, 2021
Ultra-high temperature ceramics (UHTCs) are generally referred to the carbides, nitrides, and borides of the transition metals, with the Group IVB compounds (Zr & Hf) and TaC as the main focus.
Dewei Ni   +12 more
doaj   +2 more sources

Sol-gel derived porous ultra-high temperature ceramics

open access: yesJournal of Advanced Ceramics, 2020
Ultra-high temperature ceramics (UHTCs) are considered as a family of nonmetallic and inorganic materials that have melting point over 3000 °C. Chemically, nearly all UHTCs are borides, carbides, and nitrides of early transition metals (e.g., Zr, Hf, Nb,
Fei Li   +3 more
doaj   +2 more sources

Ti3C2Tx MXene‐Zirconium Diboride Based Ultra‐High Temperature Ceramics

open access: yesAdvanced Science
MXenes are a family of two‐dimensional (2D) transition metal carbides, nitrides, and carbonitrides with potential applications in ceramics and composites due to their nanometer‐thick morphology, hydrophilic surfaces, and negative zeta potentials. In this
Srinivasa Kartik Nemani   +11 more
doaj   +2 more sources

Scratch-Induced Wear Behavior of Multi-Component Ultra-High-Temperature Ceramics

open access: yesCeramics
Multi-component ultra-high-temperature ceramics (MC-UHTCs) are promising for high-temperature applications due to exceptional thermo-mechanical properties, yet their wear characteristics remain unexplored.
Gia Garino   +3 more
doaj   +3 more sources

Ultra-high temperature ceramics modified carbon/carbon composites

open access: yesCailiao gongcheng, 2021
Carbon/Carbon(C/C) composites are widely used in aerospace industry due to their diverse advantages such as low density, reliable thermal shock resistance and excellent mechanical properties at elevated temperatures.
XIE Qi-ying   +3 more
doaj   +1 more source

Ultra-High Temperature Ceramics for solar receivers: spectral and high-temperature emittance characterization [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
We report on the preparation, room temperature spectral reflectance and high-temperature thermal emittance characterization of different boride and carbide Ultra-High Temperature Ceramics (UHTCs).
Sani E.   +4 more
doaj   +1 more source

Progress in preparation and ablation resistance of ultra-high-temperature ceramics modified C/C composites for extreme environment

open access: yesReviews on Advanced Materials Science, 2023
Carbon/carbon (C/C) composites have received considerable attention for one of the most promising materials in thermal-structural applications owing to their low density, excellent mechanical strength at high temperature, and superior thermal shock ...
Zhu Shibu   +7 more
doaj   +1 more source

Ablation behaviour of Cf–ZrC-SiC with and without rare earth metal oxide dopants

open access: yesOpen Ceramics, 2022
Continuous carbon fibre/carbon composites are candidates for ultra-high temperature applications due to their ability to retain their strength at elevated temperatures, however they easily oxidize and ablate in high temperature oxygen-based environments,
S.R.C. Murthy Tammana   +7 more
doaj   +1 more source

Characterization of thermophysical and mechanical properties of hafnium carbonitride fabricated by hot pressing sintering

open access: yesJournal of Materials Research and Technology, 2023
Dense HfCxN1−x carbonitride ceramics are very promising as potential ultra-high temperature ceramics (UHTCs) for application under extremely harsh environments.
Xintao Zhang   +7 more
doaj   +1 more source

Effects of oxidation on the effective thermomechanical properties of porous ultra-high temperature ceramics in compression via computational micromechanics and MPM

open access: yesOpen Ceramics, 2023
Due to the harsh flight environment of hypersonic platforms, Ultra-High Temperature Ceramics (UHTCs) imbued with macroscale porosity have been introduced as candidates for providing thermal insulation of sensitive on-board components.
Brenton A. Morris   +3 more
doaj   +1 more source

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