Results 31 to 40 of about 187,327 (298)

The Influence of Environmental Temperature on the Passive Oxidation Process in the C/SiC Composite

Fractal and Fractional
The C/SiC composite plays a crucial role in providing thermal protection for hypersonic vehicles. The SiO2 oxide layer formed via passive oxidation during ablation constitutes a typical porous medium with self-similarity.
Qingyong Zhu, Haixin Jie, Shun Lu, Zhihui Li   +3 more
doaj   +1 more source

Preparation of Silicon Rubber/2,2'-(3-methyl-4-dihydro-1,3,2-benzoxazine)Propane Ablative-resistant Composites and Its Ablative Structure

Journal of Aeronautical Materials, 2017
Benzoxazine resin is a new generation of anti-ablation resin with high char yield and high-temperature oxidation resistance. Using high temperature vulcanized silicon rubber as ablation resistance matrix and 2,2'-(3-methyl-4-dihydro-1,3,2-benzoxazine ...
DONG Yimin, YIN Zhengshuai, LI Yong
doaj   +1 more source

Ablation state assessment of SF6 circuit breaker contacts based on BP neural network and mean impact value

Energy Reports, 2022
In order to evaluate the ablation state of the SF6 circuit breaker contacts, simulated ablation tests were carried out on the circuit breaker, and the dynamic resistance curve as a function of contact travel was measured with three levels of injected ...
Qiang Wu, Yu Wang, Yaoping Wang, Jian Wang, Lei Lan, Yeqiang Deng, Xishan Wen, Bing Luo, Wei Xiao   +8 more
doaj   +1 more source

Conditions for the growth of smooth La0.7Sr0.3MnO3 thin films by pulsed electron ablation

, 2012
We report on the optimisation of the growth conditions of manganite La0.7Sr0.3MnO3 (LSMO) thin films prepared by Channel Spark Ablation (CSA). CSA belongs to pulsed electron deposition methods and its energetic and deposition parameters are quite similar
Bergenti, Ilaria, Borgatti, Francesco, Busquets-Mataix, David Jeronimo, Dediu, Valentin Alek, Gambardella, Alessandro, Graziosi, Patrizio, Kitts, Catherine, Pernechele, Chiara, Prezioso, Mirko, Pullini, Daniele, Rakshit, Rajib Kumar, Riminucci, Alberto, Solzi, Massimo   +12 more
core   +1 more source

Investigation on the Properties of Phenolic-Resin-Based Functional Gradient Thermal Protection Composite Materials

Aerospace
Crosslinked phenolic resin was prepared using hexamethylenetetramine (HMTA) as a crosslinking agent in hydrochloric acid solution. The ablation-heat-resistant material was prepared by a pressure-assisted RTM (resin transfer molding) process with ...
Jiangman Li, Weixiong Chen, Jianlong Chang   +2 more
doaj   +1 more source

Ablation Resistance and Spray-Ability of Nano-Magnesium Silicate Reinforced Sprayable Silicone-Based Thermal Insulation Materials

Nanomaterials
In order to satisfy the requirement for lightweight, highly reliable sprayable silicone rubber insulation material (SASI) in next-generation spacecraft, and to achieve a synergistic balance among the sprayability, mechanical properties and ablation ...
Junjie Hu, Yanbin Chen, Tingting Ge, Shuang Wu, Qianqiu Wu, Lifen Li, Yage Chen, Yifu Zhang, Yang Li   +8 more
doaj   +1 more source

Improved interfacial strength and ablation resistance of carbon fabric reinforced phenolic composites modified with functionalized ZrSiO4 sol

Materials & Design, 2020
The using performance of carbon fabric reinforced phenolic composites in the aerospace industry is determined by the fibre/matrix interfaces performance and ablation resistance.
Feng Xu, Shizhen Zhu, Zhuang Ma, Yanbo Liu, Hezhang Li, Jingdan Hu   +5 more
doaj   +1 more source

Wide temperature range protection performance of Zr–Ta–B–Si–C ceramic coating under cyclic oxidation and ablation environments

High Temperature Materials and Processes
In order to improve the oxidation and ablation resistance of carbon materials, Zr–Ta–Si–C–B coatings with different Zr/Ta ratios were successfully prepared on the graphite surface by combining slurry impregnation and reactive melt infiltration (RMI). The
Guo Xiaoyang, Tian Yuan, Wang Na, Jiang Yan   +3 more
doaj   +1 more source

Effect of carbon fiber tow structure on ablative properties of carbon fiber/phenolic composites

Cailiao gongcheng, 2022
Carbon fiber reinforced carbon/phenolic composites were prepared by using phenolic resin as matrix, plain carbon cloth and short carbon fiber as reinforcing agent.
KONG Guoqiang, AN Zhenhe, WEI Huazhen, LI Ying, SHAO Meng, YU Qiubing, JI Xiaojun, LI Juying, WANG Kang   +8 more
doaj   +1 more source

Macrophage depletion disrupts immune balance and energy homeostasis. [PDF]

, 2014
Increased macrophage infiltration in tissues including white adipose tissue and skeletal muscle has been recognized as a pro-inflammatory factor that impairs insulin sensitivity in obesity.
Feng, Gen-Sheng, Kinney, Brice, Lee, Bonggi, Qiao, Liping, Shao, Jianhua   +4 more
core   +2 more sources