Results 1 to 10 of about 53 (47)

Numerical Simulation for Thermal Shock Resistance of Thermal Protection Materials Considering Different Operating Environments [PDF]

The Scientific World Journal, 2013
Based on the sensitivities of material properties to temperature and the complexity of service environment of thermal protection system on the spacecraft, ultrahigh-temperature ceramics (UHTCs), which are used as thermal protection materials, cannot ...
Weiguo Li, Dingyu Li, Ruzhuan Wang, Daining Fang   +3 more
doaj   +2 more sources

Hierarchical Strain‐Modified Medium‐Entropy Carbide Ceramics Exhibit Exceptional Ablation Resistance up to 2400°C [PDF]

Advanced Science
Carbide ultrahigh‐temperature ceramics (UHTCs) exhibit high melting points and are regarded as promising candidate materials for applications in ultrahigh‐temperature conditions, such as high‐speed flight vehicles.
Junyi Xiao, Pengfei He, Lin Xue, Shujun Hu, Liliang Shao, Chuan Sun, Yunyun Ge, Jiangbo Cheng, Xiubing Liang   +8 more
doaj   +2 more sources

High-Throughput Screening of the Thermoelastic Properties of Ultrahigh-Temperature Ceramics [PDF]

ACS Applied Materials & Interfaces, 2021
Pinku Nath, JOSÉ J Plata, Ernesto J Blancas   +2 more
exaly   +2 more sources

Research Progress on Ultrahigh-Temperature Ceramics Modified C/C Composites [PDF]

Materials
Tianxing Jiang, Qingbo Wen, Xiang Xiong   +2 more
exaly   +2 more sources

Mathematical modeling and simulation of porosity on thermomechanical properties of UHTCs under hypersonic conditions

International Journal of Ceramic Engineering & Science, 2023
Ultrahigh temperature ceramics (UHTCs) were analyzed for their suitability in hypersonic flight conditions using balanced heat equations, transport equation, and finite element modeling technique. Mathematical model was derived on the assumption that the
Carmine Zuccarini, Karthikeyan Ramachandran, Stefano Russo, Yasith C. Jayakody, Doni Daniel Jayaseelan   +4 more
doaj   +1 more source

Ultrahigh temperature ceramics (UHTCs) based on ZrB₂and HfB₂systems: Powder synthesis, densification and mechanical properties

Journal of Physics: Conference Series, 2009
Phase pure ZrB2 and HfB2 powders were synthesized by boro/carbothermal reduction (BCTR) of ZrO2 and borothermal reduction of HfO2, respectively. Combining the thermodynamic calculations and XRD results, the reaction process of BCTR of synthesized ZrB2 powder was shown.
Guo-Jun Zhang, Wei-Ming Guo, De-Wei Ni, Yan-Mei Kan   +3 more
openaire   +1 more source

Reactive Spark Plasma Sintering and Mechanical Properties of Zirconium Diboride–Titanium Diboride Ultrahigh Temperature Ceramic Solid Solutions

Technologies, 2016
Ultrahigh temperature ceramics (UHTCs) such as diborides of zirconium, hafnium tantalum and their composites are considered to be the candidate materials for thermal protection systems of hypersonic vehicles due to their exceptional combination of ...
Karthiselva N. S., Srinivasa Rao Bakshi
doaj   +1 more source

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

The effect of nitrogen doping on the ablation resistance of zirconium carbide ceramics

Journal of Advanced Ceramics
Ultrahigh-temperature ceramics (UHTCs) are prominent candidates for use in thermal protection systems in the aerospace and nuclear industries. This study introduces a nitrogen-doped zirconium carbide that demonstrates remarkable ablation resistance ...
Zheng Peng, Yingjie Cui, Jianbo Song, Sian Chen, Zengsheng Ma, Fuhua Cao   +5 more
doaj   +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