Results 51 to 60 of about 113 (106)

Combustion synthesis of ultra‐high temperature ceramics: Review

International Journal of Applied Ceramic Technology, Volume 22, Issue 6, November/December 2025.
Abstract Novel and future‐oriented aerospace, energy, transportation, and other industrial technologies require materials capable of operating at temperatures above 2000°C. Ultra‐high temperature ceramic materials (UHTCs), based on carbides, borides, carbonitrides, and nitrides of transition metals—many with melting points exceeding 3000°C—possess the ...
Alexander S. Mukasyan, Alexander S. Rogachev   +1 more
wiley   +1 more source

Brazing ZrB2 ultra‐high‐temperature ceramics to Zr metals for hypersonic thermal protection systems

International Journal of Applied Ceramic Technology, Volume 22, Issue 5, September/October 2025.
Abstract Porous and dense zirconium diboride (ZrB2) materials are promising ultra‐high‐temperature ceramics (UHTCs) for transpiration cooling in hypersonic applications, providing an effective means to reduce component temperatures and mitigate oxidation effects. While porous ZrB2 enables coolant flow, dense ZrB2 offers structural integrity.
Younes Belrhiti, M. Watson Grossman, R. Hedgecock, M. McGilvray, L. Vandeperre   +4 more
wiley   +1 more source

Synthesis of hafnium carbide (HfC) via one‐step selective laser reaction pyrolysis from liquid polymer precursor

Journal of the American Ceramic Society, Volume 108, Issue 9, September 2025.
➢ A one‐step selective laser reaction pyrolysis (SLRP) technique was developed to rapidly synthesize hafnium carbide (HfC) from liquid polymer precursors. ➢ XRD and TEM confirmed the nanocrystalline structure of the HfC. ➢ The SLRP‐based process achieved up to 54% ceramic yield, 18% higher than furnace‐based methods.
Shalini Rajpoot, Kaushik Nonavinakere Vinod, Tiegang Fang, Chengying Xu   +3 more
wiley   +1 more source

Twin Toughening‐Driven Martensitic Transformation Strategy Synergistic Improvement for Plasticity‐Thermal Shock Resistance of (Hf─Zr─Ti)C Ceramic Coating in Severe Thermal Environments

Advanced Science, Volume 12, Issue 26, July 10, 2025.
A “ceramic self‐toughening strategy” is introduced for enhancing the plasticity and thermal shock resistance of (Hf─Zr─Ti)C coatings through twin toughening‐driven martensitic transformations in oxide scales. It facilitated the formation of stable, dense, and high‐toughness oxide scales after repeat ablation, and endowed prepared coatings with superior
Jiachen Li, Yulei Zhang, Yanqin Fu, Tao Li, Jian Zhang, Deyu Yang, Lingfei Cao, Fanyu Lu, Junhao Zhao, Junshuai Lv, Hejun Li   +10 more
wiley   +1 more source

Thermal properties of MB2-WC (M = Ti, Zr, Hf) and tungsten and their stability after deuterium plasma exposure

Open Ceramics
The thermal properties of ultra-high temperature ceramics (UHTCs) in the MB2-WC (M = Ti, Zr, Hf) system and tungsten were studied for potential application as plasma-facing materials in fusion power plants.
Pietro Galizia, Andrea Uccello, Francesco Ghezzi, Luca Labate, Bruno Tiribilli, Ondrej Hanzel, Martina Salvadori, Fernando Brandi, Simone Failla, Cesare Melandri, Anna Cremona, Matteo Pedroni, Marco De Angeli, Enrico Perelli Cippo, Leonida Antonio Gizzi, Peter Tatarko, Diletta Sciti   +16 more
doaj   +1 more source

From Processing to Performance: Innovations and Challenges in Ceramic-Based Materials

Crystals
In aerospace, defense, and energy systems, ceramic matrix composites (CMCs) are smart structural materials designed to function continuously in harsh mechanical, thermal, and oxidative conditions.
Sachin Kumar Sharma, Sandra Gajević, Lokesh Kumar Sharma, Yogesh Sharma, Mohit Sharma, Saša Milojević, Slobodan Savić, Blaža Stojanović   +7 more
doaj   +1 more source

Mechanistic insights into high strain rate deposition of tantalum carbide coatings via cold spray

Materials & Design
While cold spray (CS) is traditionally limited to metals and metal-ceramic composites, this study demonstrates its capability to consolidate a pure ultra-high temperature ceramic (UHTC), tantalum carbide (TaC), a superhard material considered highly ...
Ambreen Nisar, Sohail M.A.K. Mohammed, Denny John, Anil Lama, Yiefi Fu, Rony T Murickan, Sudipta Seal, Arvind Agarwal   +7 more
doaj   +1 more source

Near-net shape fabrication process of ZrB2-SiC ceramics using highly concentrated ZrB2 slurries and a precursor impregnation & pyrolysis process

Materials & Design
Near-net-shape fabrication of ZrB2–SiC ultra-high-temperature ceramics (UHTCs) remains challenging due to shrinkage and deformation during drying and densification, which compromise dimensional accuracy and densification reliability.
Hyun-Hee Choi, Yun Zou, Ji-Su Yoon, Sea-Hoon Lee   +3 more
doaj   +1 more source

Low-Temperature Synthesis of Ta_xHf_1−xC Solid Solutions via Pectin Gelation: Phase and Morphological Evolution

Inorganics
Ultra-high-temperature ceramics (UHTCs) in the Ta–Hf–C ternary system are of significant interest for extreme aerospace and energy applications due to their melting points near 4000 °C. However, their synthesis typically requires extreme temperatures and
Aimé L. Acosta-Soto, Laura G. Ceballos-Mendívil, Jonathan C. Luque-Ceballos, Rody Soto-Rojo, Francisco Baldenebro-López, Adriana Cruz-Enríquez, José J. Campos-Gaxiola, Carlos A. Pérez-Rábago, Jesús Baldenebro-López   +8 more
doaj   +1 more source

Accelerated discovery of near-zero ablation ultra-high temperature ceramics via GAN-enhanced directionally constrained active learning

Advanced Powder Materials
In materials science, a significant correlation often exists between material input parameters and their corresponding performance attributes. Nevertheless, the inherent challenges associated with small data obscure these statistical correlations ...
Wenjian Guo, Fayuan Li, Lingyu Wang, Li'an Zhu, Yicong Ye, Zhen Wang, Bin Yang, Shifeng Zhang, Shuxin Bai   +8 more
doaj   +1 more source