Results 1 to 10 of about 4,174,047 (104)

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   +3 more sources

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   +3 more sources

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

ACS Appl Mater Interfaces, 2021
Ultrahigh-temperature ceramics (UHTCs) are a group of materials with high technological interest because of their applications in extreme environments.
Nath P, Plata JJ, Santana-Andreo J, Blancas EJ, Márquez AM, Fernández Sanz J.   +5 more
europepmc   +4 more sources

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

Materials (Basel)
C/C composites have excellent high-temperature mechanical properties and are one of the most promising high-temperature structural materials. However, poor oxidation and ablation resistance of the C/C composites in high-temperature oxygen-containing ...
Gao R, Wang S, Zhou T, Jiang T, Lu L, Wen Q, Tao S, Xiong X.   +7 more
europepmc   +3 more sources

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

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   +2 more sources

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   +2 more sources

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

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

A novel lightweight near-non-ablation HfO2–SiBOC ceramic: From SiHfBOC precursor synthesis to oxyacetylene flame testing at 2000 °C

Journal of Advanced Ceramics
Carbide- and boride-based ultrahigh temperature ceramics (UHTCs) are the materials of choice for hypersonic vehicles and scramjet engines. Nevertheless, these UHTCs are prone to oxidation in an oxygen-containing atmosphere.
Yang Lyu, Wei Zhang, Fei Li, Chunlin Wang, Yuhao Fang, Wenzheng Zhang, Mingyi Tan, Ping Hu, Yuan Cheng, Wenbo Han, Xinghong Zhang   +10 more
doaj   +1 more source