Results 31 to 40 of about 286 (167)

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

Oxidation resistance of zirconium diboride powder.

Journal of Advanced Science, 1998
The oxidation resistance of zirconium diboride (ZrB2) powder at high temperatures was investigated in order to determine the possibility of the use of additional material for improvement of the oxidation resistance in carbon-carbon (C/C) composites. ZrB2 powder with an average particle size of about 10μm was used in this experiment.
MATSUSHITA, Jun-ichi, ENDO, Takashi
openaire   +2 more sources

Design Rules for Carboborothermic Reduction Synthesis of High Uranium Density UB4–UBC Composites

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
ABSTRACT Uranium borides are promising candidate fuel forms for use in advanced nuclear reactors due to their high thermal conductivity and potential for dual use as both fuel and burnable absorber. In this work, uranium tetraboride (UB4${\rm UB}_4$) and uranium monoboroncarbide (UBC) composite were synthesized by using industrially scalable ...
Riley Moeykens, Anthony A. Harrup, David Simonne, Mehmet Topsakal, Ericmoore Jossou   +4 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

Strategy of Sintering Ceramics Under Extreme Conditions

Interdisciplinary Materials, Volume 5, Issue 2, Page 243-251, March 2026.
Novel strategies in extreme sintering technologies, which include ultrafast sintering, strong electric field‐assisted sintering, high‐pressure and ultra‐high‐pressure sintering, and multi‐field assisted sintering, and so on. ABSTRACT Advanced ceramics play a critical role in high‐tech industries.
Shuai Fu, Weimin Wang, Hanxing Liu, Wei Ji   +3 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

An Investigation on the Effect of TiC Additive on the Microstructural and Mechanical Properties of Ultra-High Temperature ZrB2-SiC-Based Ceramic Composite by Multi-Step Spark Plasma Sintering Method [PDF]

Journal of Advanced Materials in Engineering
This study investigates the fabrication and characterization of an ultra-high temperature ceramic composite based on ZrB2-20 vol. % SiC using the spark plasma sintering method with a multi-step technique.
S. Pourbahraini, M. Ahmadian
doaj   +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

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

Numerical prediction of thermal conductivity in ZrB2-particulate-reinforced epoxy composites based on finite element models

Science and Engineering of Composite Materials, 2018
Epoxy composites reinforced by Zirconium diboride (ZrB2) particles were investigated by finite element models (FEMs). It helped to explore the relationship between the thermal conductivity of composites and the volume fraction, size, shape, orientation ...
Wu Yicheng, Yu Zhiqiang
doaj   +1 more source