Results 71 to 80 of about 549 (213)

Oxidation resistance of multi-component carbide and boride UHTCS

, 2017
Bulk samples of high entropy ultra-high temperature ceramics (UHTCs) of the composition (HfNbTaTiZr)C and (HfNbTaTiZr)B2 were fabricated via high energy ball milling and spark plasma sintering.
Harrington, Tyler, Vecchio, Kenneth, Backman, Lavina, Gild, Joshua, Opila, Elizabeth, Luo, Jian   +5 more
core  

Exploring new approaches and applications for multi-scale porous UHTCS

, 2017
The control of processing conditions is key to achieve the desire amount, size and shape of porosity in materials for any application, including extreme applications.
Minas, Clara, Hicks, David, Tallon, Carolina, Franks, George V., Jukes, Laura   +4 more
core  

Flash spark plasma sintering of UHTCs

, 2017
During the five year XMat research project supported by EPSRC (Engineering and Physical Sciences Research Council, UK) at Queen Mary we developed a novel sintering technique called Flash Spark Plasma Sintering (FSPS[1]) which is particularly suitable for
Hvizdos, Pavol, Cedillos-Barraza, Omar, Girman, Vladimir, Grasso, Salvatore, Sedlák, Richard, Csanádi, Tamás, Dusza, Ján, Duff, Andrew, Mellan, Thomas, Finnis, Michael W., Zou, Ji, Zapata-Solvas, Eugenio, Humphry-Baker, Samuel, Lee, William E., Binner, Jon, Saunders, Theo   +15 more
core  

Development of Ultra High Temperature Matrix Composites using a Reactive Melt Infiltration Process

, 2021
Ultrahochtemperatur-Keramiken (UHTCs) bezeichnen eine Gruppe von Keramiken, deren Eigenschaften es ermöglichen, sie in einem Ultrahoch-Temperaturbereich von über 2000°C zu verwenden. Entscheidende Eigenschaften von UHTCs sind ein hoher Schmelzpunkt, gute
Kütemeyer, Marius
core   +1 more source

The effect of MoAlB substitutions on the oxidation behavior of ZrB2-SiC Composites at 1600 °C

Materials Research Express
ZrB _2 -SiC ceramics are potential candidates for thermal protection materials for re-entry and hypersonic vehicles. Phases are typically added to ZrB _2 -SiC to enhance the oxidation resistance of the material.
Yashuang Xu, Ling Liu, Yanbo Liu, Zhuang Ma, Shirui Yang   +4 more
doaj   +1 more source

Fabrication and microstructure of ZrB2–ZrC–SiC coatings on C/C composites by reactive melt infiltration using ZrSi2 alloy

Journal of Advanced Ceramics, 2018
ZrB2–ZrC–SiC ternary coatings on C/C composites are investigated by reactive melt infiltration of ZrSi2 alloy into pre-coatings. Two different pre-coating structures, including porous B4C–C and dense C/B, are designed by slurry dip and chemical vapor ...
Chaoqiang Xue, Haijun Zhou, Jianbao Hu, Hongda Wang, Jiayue Xu, Shaoming Dong   +5 more
doaj   +1 more source

Accelerated discovery of near-zero ablation ultra-high temperature ceramics via GAN-enhanced directionally constrained active learning

Advanced Powder Materials
In materials science, a significant correlation often exists between material input parameters and their corresponding performance attributes. Nevertheless, the inherent challenges associated with small data obscure these statistical correlations ...
Wenjian Guo, Fayuan Li, Lingyu Wang, Li'an Zhu, Yicong Ye, Zhen Wang, Bin Yang, Shifeng Zhang, Shuxin Bai   +8 more
doaj   +1 more source

Thermodynamic modeling of the Hf-Ta-O system for the design of oxidation resistant HfC-TaC ceramics

Open Ceramics
An improved understanding of the oxidation resistance of HfC-TaC ultra-high temperature ceramics (UHTCs) is developed through modeling of the phase equilibria in the Hf-Ta-O system and HfO2-Ta2O5 isoplethal section. CALculation of PHAse Diagrams (CALPHAD)
Rahim Zaman, Elizabeth J. Opila, Bi-Cheng Zhou   +2 more
doaj   +1 more source

EVALUATION OF OXIDATION BEHAVIOR OF UHTC COMPOSITE MATERIALS

, 2015
Oxidation behavior of C-ZrB2-SiC-ZrC under dynamic heating condition at 1800C was investigated. The composite showed better recession and oxidation resistance with the optimized composition.
Mamoru Yano, Yuki Kubota, Hiroki Tanaka, Yasuo Kogo, Ken Goto   +4 more
openaire   +1 more source

Creep and Oxidation of Hafnium Diboride-Based Ultra High Temperature Ceramics at 1500°C

, 2015
Ultra high temperature ceramics (UHTCs) are leading candidates for aerospace structural applications in high temperature environments, including the leading edges of hypersonic aircraft and thermal protection systems for atmospheric re-entry vehicles ...
DeGregoria, Anthony J., Anthony J. DeGregoria   +1 more
core   +1 more source