Results 31 to 40 of about 549 (213)

A novel highly porous dual-phase high-entropy ultrahigh-temperature ceramic with outstanding properties

Journal of Advanced Ceramics
Ultrahigh-temperature ceramics (UHTCs) have a unique combination of high melting points, high strengths, and high chemical stabilities, which makes them unique materials for a wide range of ultrahigh-temperature (> 2000 °C) applications.
Zhuojie Shao, Dawei Zeng, Mengjun Xu, Xirui Lv, Zhen Wu, Luchao Sun, Jingyang Wang   +6 more
doaj   +1 more source

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

Open 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, Mengyuan Duan, Ji Zou, James Wade, Vinothini Venkatachalam, Ben Baker, Shahrouz Nayebossadri, Jon Binner   +7 more
doaj   +1 more source

Zirconium‐Based High Emissivity Multilayer Coating for Carbon/Carbon Composite With Enhanced Ablation Resistance

International Journal of Applied Ceramic Technology, Volume 23, Issue 3, June 2026.
ABSTRACT A multilayer coating system was developed as an ablation and thermal protection measure for C/C composites. The multilayer coating architecture consists of SiC, ZrB2‐SiC (ZBS), and ZrC‐ZrO2 (ZZC) sublayers with a Sm2O3‐ZrO2 (SZC) topcoat.
Abdullah Al Saad, Michael Helminiak, Molly M. O'Connor, Michael Brennan, Carlos J. Martinez, Rodney W. Trice   +5 more
wiley   +1 more source

Expanding the members of ultra-high temperature ceramics and their maximum service temperature exceeding 3000 °C

Journal of Advanced Ceramics
Aerodynamic heating, oxidation, ablation, and high dynamic pressure represent the extreme environments that aerospace vehicles must withstand during high-Mach atmospheric or trans-atmospheric flight. The temperature of critical components on the vehicles
Fei Li, Guo-Jun Zhang, Yanchun Zhou, Xinghong Zhang   +3 more
doaj   +1 more source

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

Advanced Engineering Materials, Volume 28, Issue 9, 6 May 2026.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko, Evelyn Wang, Michael A. Hickner   +2 more
wiley   +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

Effect of Sintering Parameters on the Densification, Microstructure, and Mechanical Performance of ZrB2–SiC Ceramics

International Journal of Applied Ceramic Technology, Volume 23, Issue 2, April 2026.
This graphical abstract illustrates the systematic investigation of Spark Plasma Sintering (SPS) parameters, temperature, pressure, and dwell time, on the densification and mechanical performance of ZrB2–20 vol% SiC composites. It highlights the critical influence of powder processing history (WC vs.
Prakhar Jindal, Iason Krinis, Vera Popovich, Hans Brouwer, Jyoti Botchu, Yinglu Tang   +5 more
wiley   +1 more source

Advanced Ceramics in Aerospace and Defense: The Interrelationship between Traditional and Additive Manufacturing Approaches

Advanced Materials Technologies, Volume 11, Issue 3, 5 February 2026.
Additive manufacturing revolutionizes production by enabling on‐demand, customized, and sustainable manufacturing with streamlined supply chains. While metal and polymer AM are well‐established, advanced ceramic AM is rapidly emerging, overcoming traditional material challenges.
Kateryna Oleksandrivna Shvydyuk, Senentxu Lanceros‐Mendez, Abílio Pereira Silva   +2 more
wiley   +1 more source

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

Journal 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, Xingchao Li, Jun Zuo, Ruiying Luo, Jinming Wang, Yuhai Qian, Meishuan Li, Jingjun Xu   +7 more
doaj   +1 more source

Microstructure, mechanical, and thermal properties of compositionally complex (Hf,Zr,Nb,Ti)B2‒LaB6 ceramics

International Journal of Applied Ceramic Technology, Volume 23, Issue 1, February 2026.
Abstract Novel compositionally complex borides, (Hf,Zr,Nb,Ti)B2 and (Hf,Zr,Nb,Ti)B2‒LaB6, were fabricated using spark plasma sintering process. (Hf,Zr,Nb,Ti)B2‒LaB6 exhibits a dual‐phase microstructure, in which (Hf,Zr,Nb,Ti)B2 is a primary phase with the hexagonal structure and LaB6 is a secondary phase with a cubic structure.
Xin Chen, Lanh Trinh, Zilong Hua, Fei Wang, Xiang Zhang, Yongchul Yoo, Kaustubh Bawane, Yongfeng Lu, Bai Cui   +8 more
wiley   +1 more source