Results 1 to 10 of about 187,327 (298)

Oxidation Resistance, Ablation Resistance, and Ablation Mechanism of HfC-B₄C-Modified Carbon Fiber/Boron Phenolic Resin Ceramizable Composites. [PDF]

Polymers (Basel)
Thermal protection materials with excellent performance are critical for hypersonic vehicles. Carbon fiber/phenolic resin composites (Cf/Ph) have been widely used as thermal protection materials due to their high specific strength and ease of processing. However, oxidative failure limits the extensive applications of Cf/Ph in harsh environments.
Wen H, Zhang W, Deng Z, Yang X, Huang W.
europepmc   +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

Effect of Different Reinforcing Fibers on the Properties of Phenolic Aerogel Composites [PDF]

Gels
With the rapid development of aerospace technology towards hypersonic vehicles, the synergistic demand for lightweighting and high-efficiency thermal insulation performance of ablation-resistant thermal insulation materials is becoming increasingly ...
Junjie Xu, Xudong Shao, Lijun Lei, Xin Zhang, Jianlong Chang, Hui Gao   +5 more
doaj   +2 more sources

Ablation resistance of C/C-HfC composites

Cailiao gongcheng
C/C-HfC composites with a density of 2.14 g/cm3 was successfully prepared using an inorganic hafnium solution as a precursor via chemical vapor infiltration (CVI) and precursor infiltration pyrolysis (PIP) methods, and its microstructure and composition ...
ZHENG Peng, LI Hong, YANG Min, YAO Yumin, REN Musu, SUN Jinliang   +5 more
doaj   +2 more sources

Ablation resistance properties and microstructure of plasma spraying coatings

Fenmo yejin jishu, 2023
Tungsten (W) and tungsten alloy coatings were prepared by plasma spraying on 45# steel and TC4 titanium alloys. Ablation tests were carried out under the different ablation conditions.
LIN Bingtao, ZHANG Baohong, TANG Liangliang, XIONG Ning, ZHANG Danhua, ZHANG Lei   +5 more
doaj   +2 more sources

Ablation resistance of C/C-SiCo nanoporous ceramic composites with TaSi2-MoSi2-ZrB2-borosilicate glass coating [PDF]

Processing and Application of Ceramics, 2023
The development of high-speed aerial vehicles urgently requires high-performance integrated materials for ablation resistance, thermal insulation and oxidant protection under high temperature.
Li Xiafei, Feng Junzong, Wu Xingyu, Jiang Jin   +3 more
doaj   +1 more source

Network radiofrequency ablation for drug resistant epilepsy

Epilepsy & Behavior Reports, 2021
Radiofrequency ablation (RFA) is a minimally invasive procedure for drug-resistant focal epilepsy. Although well tolerated, seizure outcomes are less favorable than standard resection. RFA is commonly performed following stereoencephalography (sEEG) identification of the seizure onset zone (SOZ).
Daniah Shamim, Jennifer Cheng, Caleb Pearson, Patrick Landazuri   +3 more
openaire   +3 more sources

Ablation Mechanism of AlSiB-C/C Composites under an Oxy-Acetylene Torch

Metals, 2023
In order to improve the ablation resistance of C/C composites, an AlSiB alloy (mass ratio of Al/Si/B = 2:4:1) was used as a dissipative agent to fill the pores of a C/C composites matrix by reactive melt infiltration to prepare AlSiB-C/C composites.
Qiuchen Han, Lei Chang, Zhaoqun Sun, Jiaqi Sun, Zengyan Wei, Pingping Wang, Ziyang Xiu, Huasong Gou, Pengchao Kang, Gaohui Wu   +9 more
doaj   +1 more source

Dual network of poly-benzoxazine /nitrile rubber composite and its ablation resistance and thermal insulation properties

Hecheng xiangjiao gongye, 2023
"　Poly-benzoxazine resin (PBR) with a unique N, O six-membered heterocyclic structure, had a potential application in the field of aerospace due to its low expansion coefficient, high weather resistance, high carbon yield, good mechanical strength, and ...
FU Quan-sheng1, WEN Yan-wei2, LOU Yang2, CHEN Meng-han1, JIA Hong-bing1*
doaj   +1 more source

Renal sympathetic nerve ablation for treatment‐resistant hypertension [PDF]

British Journal of Clinical Pharmacology, 2013
Hypertension is a major risk factor for increased cardiovascular events with accelerated sympathetic nerve activity implicated in the pathogenesis and progression of disease. Blood pressure is not adequately controlled in many patients, despite the availability of effective pharmacotherapy.
Henry, Krum, Markus, Schlaich, Paul, Sobotka   +2 more
openaire   +2 more sources