Results 21 to 30 of about 276 (148)

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

Local Structure and Vacancy Distribution in Transition Metal Carbides: Results From High‐Resolution 13C NMR Spectroscopy

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
The local carbon environment in the refractory transition metal carbides ZrC, HfC, NbC, and TaC was studied using high‐resolution magic angle spinning 13C NMR spectroscopy. Results show that carbon nuclei with next nearest neighbor vacant sites or oxygen/nitrogen impurities are distinguishable through 13C NMR, and that the technique can be used to ...
William F. Rosenberg, Ping Yu, Sabyasachi Sen, Scott J. McCormack   +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

Synthesis and Electronic Structure Modulation of 2D MBenes for Conversion of Nitrates Into Green Ammonia

Small Structures, Volume 7, Issue 3, March 2026.
Two‐dimensional transition metal boride‐based materials as electrocatalysts for nitrate reduction reaction (NO3RR). It covers the synthesis and structure of Mbenes for electrocatalytic nitrate reduction reaction (NO3RR) to ammonia, including ammonia detection methods, following the future perspectives.
Naseem Ahmad Khan, Tayyaba Najam, Muhammad Altaf Nazir, Nadia Tahir, Aziz ur Rehman, Syed Shoaib Ahmad Shah, Pengcheng Guo, Xingke Cai   +7 more
wiley   +1 more source

Preparation and properties of composite material based on hafnium diboride and aluminum [PDF]

, 2019
Hafnium diboride (HfB[2]) in aluminum matrix (Al) material was prepared by diffusion sintering of a mixture of hafnium diboride and aluminum micropowders.
Belyakovich, S. A., Mostovshchikov, Andrey Vladimirovich, Ilyin, Aleksandr Petrovich, Gubarev, Fedor Aleksandrovich   +3 more
core  

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

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

Melting point of group IV and V transition metal diborides

Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
The environmental conical nozzle levitator system enables cooling trace experiments above 4000 K. These cooling trace experiments were used to determine the melting points through observation of thermal arrest of group IV and V transition metal diborides (TiB2, Tm = 3313 ± 33 K; ZrB2, Tm = 3404 ± 38 K; HfB2, Tm = 3529 ± 33 K; and TaB2, Tm = 3284 ± 10 K;
Fox Thorpe, Elizabeth Sobalvarro Converse, Jesus Rivera, William Rosenberg, Scott J. McCormack   +4 more
wiley   +1 more source

A unified thermo‐chemo‐mechanical model for passive, active, and interfacial oxidation of silicon carbide

Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Abstract Silicon carbide (SiC) is a promising material for hypersonic thermal protection systems, but its complex oxidation behavior—marked by transitions between passive, active, and interfacial bubbling regimes—can lead to catastrophic failure. Existing SiC models typically focus exclusively on either passive or active oxidation.
Théo A. Rulko, Raúl A. Radovitzky
wiley   +1 more source

A Review on Composite Railway Sleepers: Global View, Life‐Cycle Sustainability, and Regional Gaps in West Africa

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
Composite railway sleepers encompass a diverse range of material systems, including polymer‐based composites manufactured from virgin and recycled polymers, as well as hybrid formulations tailored for structural and environmental performance. They withstand deterioration, insect infestations, and humidity, resulting in enhanced durability and prolonged
Ekow Quansah, Acheampong Antwi Afari, Sullaiman Alhassan, Ebenezer Adu Kyeremeh, Ezekiel Sakitey Nanor, Yakubu Issaka, Mohammad Rezwan Habib   +6 more
wiley   +1 more source