Results 81 to 90 of about 549 (213)

Advances in oxidation and ablation resistance of high and ultra-high temperature ceramics modified or coated carbon/carbon composites

, 2017
Carbon/carbon (C/C) composites are considered as one of the most promising materials in structural applications owing to their excellent mechanical properties at high temperature.
Fan, X., Lu, Chunsheng, Jin, X., Wang, T.   +3 more
core   +1 more source

Rapid heating thermal shock study of ultra high temperature ceramics using an in situ testing method

Journal of Advanced Ceramics, 2017
In this paper, the rapid cooling thermal shock behaviors of ZrB2–SiC ceramics were measured using traditional water quenching method, and the rapid heating thermal shock behaviors of ZrB2–SiC ceramics were investigated using a novel in situ testing ...
Rujie He, Zhaoliang Qu, Dong Liang
doaj   +1 more source

Characterization of Ablation Behaviors of Hf-based Ultra High Temperature Ceramics (UHTCs) Using Oxyacetylene Torch

, 2015
An increasing interest in re-entry hypersonic vehicles and weapons has driven the demand on the materials for leading edges, nosetips, and propulsion system components.
김동석, 이세훈, 성영훈, 김도경, 김주형, 백창연   +5 more
core  

Crystal-size dependence of the spark-plasma-sintering kinetics of ZrB2 ultra-high-temperature ceramics

, 2012
The crystal-size dependence of the spark-plasma-sintering (SPS) kinetics of ZrB2 ultra-high-temperature ceramics (UHTCs) was investigated. It was found that refining the starting powder enhances the SPS kinetics, reducing the onset temperatures of ...
A.L. Ortiz, Nygren, Mats,, Zamora, V., Ortiz, A. L., M. Nygren, V. Zamora, F. Guiberteau, Guiberteau, F.   +7 more
core   +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

Numerical Simulation for Thermal Shock Resistance of Thermal Protection Materials under Temperature Rising

, 2011
Due to the complexity of service environment of thermal protection system on the aerocraft, the thermal shock resistance (TSR) of ultra-high-temperature ceramics (UHTCs), which are used as thermal protection materials, is no longer the material itself’s.
Wei Guo Li, Ding Yu Li, Chao Wang, Dai Ning Fang   +3 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

Assessment of the State of the Art of Ultra High Temperature Ceramics

, 2009
Ultra High Temperature Ceramics (UHTCs) are a family of materials that includes the borides, carbides and nitrides of hafnium-, zirconium- and titanium-based systems.
Stackpoole, Mairead, Gasch, Matt, Johnson, Sylvia   +2 more
core  

Advances in High-Performance Ceramic Materials for Aerospace and Defence Applications: A State-of-the-Art Review

Ceramics
Ceramic materials are indispensable to aerospace and defence technologies, where structural and functional components are required to withstand extreme thermal, mechanical, and chemically aggressive environments.
Alfredo Aguilar-Elguezabal, Armando Reyes-Rojas, Hilda Esperanza Esparza-Ponce, Daniel Lardizábal-Gutiérrez, Miguel Humberto Bocanegra-Bernal   +4 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