Results 21 to 30 of about 4,174,026 (90)

Ultrahigh-Temperature Ceramics [PDF]

, 2007
Ultrahigh temperature ceramics (UHTCs) are a class of materials that include the diborides of metals such as hafnium and zirconium. The materials are of interest to NASA for their potential utility as sharp leading edges for hypersonic vehicles.
Johnson, Sylvia M., Irby, Edward, Gusman, Michael I., Beckman, Sarah E., Ellerby, Donald T., Gasch, Matthew J.   +5 more
core  

Creep of HfB2-based UHTCs up to 2000oC [PDF]

, 2017
Ultra-high temperature ceramics (UHTCs) are promising candidates for hypersonic applications as a consequence of their high melting points, in excess of 3000 ºC for ZrB2 and HfB2 UHTCs. The UHTCs community has traditionally focused on development of more
Feng, Lun, Lee, See Hun, Lee, Bill, Zapata-Solvas, Eugenio, Dominguez-Rodriguez, Arturo, Liu, Chenchen, Gomez-Garcia, Diego, Grasso, Salvatore, Reece, Mike   +8 more
core   +1 more source

Single-source-precursor synthesis and air-plasma ablation behavior of (Ti,Zr,Hf)C/SiC ceramic nanocomposites at 2200 °C

Journal of Advanced Ceramics
Dense monolithic (Ti,Zr,Hf)C/SiC ceramic nanocomposites with four different molar ratios of metallic elements in the (Ti,Zr,Hf)C phase (i.e., Ti : Zr : Hf = 1 : 1 : 1, 2 : 3 : 5, 2 : 3 : 3, and 1 : 2 : 1) were prepared upon pyrolysis of novel (Ti,Zr,Hf ...
Li Lu, Qingbo Wen, Jinrun Hu, Tianxing Jiang, Xiangchao Ren, Yalei Wang, Yi Zeng, Xiang Xiong   +7 more
doaj   +1 more source

Intrinsic Thermal Transport Properties of ZrB2 From Room Temperature to Melting Point

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Zirconium diboride (ZrB2) is a promising material for extreme‐environment applications, yet its intrinsic high‐temperature thermophysical behavior remains uncertain: Experiments are highly sensitive to processing conditions, simulations omit key mechanisms, and both rarely reach ultrahigh temperatures. Here, we predict the thermal conductivity
Yeojin Lee, Qihao Xu, Hyejin Jang, Tianli Feng   +3 more
wiley   +1 more source

High-entropy ceramics: From paradigm formation to ordered development

Journal of Advanced Ceramics
High-entropy ceramics (HECs), defined as single-phase inorganic solid solutions comprising five or more principal elements in equimolar or near-equimolar ratios, have emerged as a frontier and hotspot in materials science over the past decade.
Lei Su, Hongjie Wang, Yanchun Zhou
doaj   +1 more source

Multi-anion sublattice engineering enables exceptional ablation-resistant performance in Hf0.8Zr0.2B0.1C0.5N0.4–SiC ultra-high temperature ceramics

Journal of Advanced Ceramics
High-entropy ultrahigh temperature ceramics (UHTCs) have garnered significant attention for their outstanding designability and performance, yet existing strategies remain largely confined to cationic sublattice engineering, leaving the potential of ...
Xiaoyu Wang, Dewei Ni, Bowen Chen, Feiyan Cai, Yang Hu, Yanmei Kan, Yusheng Ding, Shaoming Dong   +7 more
doaj   +1 more source

Single‐source precursor synthesis of a compositionally complex early transitional metal nitride (V, Nb, Ta, Mo, W)Nx and its high temperature stability

International Journal of Applied Ceramic Technology, Volume 23, Issue 1, February 2026.
Abstract Compositionally complex transitional metal nitrides are an interesting class of ceramics with superior chemical, thermal, and mechanical stability, with a high potential in ultra‐high temperature applications and catalysis. The exceptionality in the properties may partly be explained as a consequence of their high configuration entropy ...
Dharma Teja Teppala, Milan Pejić, Dejan Zagorac, Esmaeil Adabifiroozjaei, Naina Goyal, Leopoldo Molina‐Luna, Sanjay Mathur, Branko Matović, Emanuel Ionescu   +8 more
wiley   +1 more source

Microstructures, phase and mechanical characterisation of Al2O3-ZrO2-TiO2 coating produced by atmospheric plasma spraying

Open Ceramics
The microstructure, crystallographic phases, and mechanical properties of a newly developed Al2O3 – TiO2 – ZrO2 ternary ceramic coating were characterized.
Cynthia Sin Ting Chang, Marcus Wyss, Michal Andrzejewski, Geoffrey Darut, Lukas Graf, Vladimir Novak, Margie Olbinado, Susanne Erpel, Alexander Vogel, Simon Bode, Michael de Wild, Armando Salito   +11 more
doaj   +1 more source

Beyond Conventional Cooling: Advanced Micro/Nanostructures for Managing Extreme Heat Flux

Advanced Materials, Volume 38, Issue 5, 22 January 2026.
This review examines the design, application, and manufacturing of biomimetic or engineered micro/nanostructures for managing high heat‐flux in multi‐level electronics by enhancing conductive, convective, phase‐changing, and radiative heat transfer mechanisms, highlighting their potential for efficient, targeted thermal management, and future prospects.
Yuankun Zhang, Huajie Li, Yuhang Zhou, Jun Ma, Keng‐Te Lin, Han Lin, Chunsheng Guo, Baohua Jia   +7 more
wiley   +1 more source

Nature-inspired (Ti,Zr,Hf)C/SiC micro-nano composites with enhanced ablation resistance through a Gobi Desert-like protective oxide layer

Journal of Advanced Ceramics
(Ti,Zr,Hf)C/SiC composites with micro-nano structure were designed inspired by the gravel–sand structure of the wind-resistant Gobi Desert to prevent air-plasma flame scouring and obtain excellent ablation resistance.
Li Lu, Shuibin Wang, Tianxing Jiang, Pengcheng Du, Jinrun Hu, Tianci Zhou, Yichen Wang, Yi Zeng, Yalei Wang, Xiang Xiong, Qingbo Wen   +10 more
doaj   +1 more source