Results 271 to 280 of about 9,574,494 (334)

Ablation resistance of certain epoxy compounds

Polymer Mechanics, 1972
The rate of ablation in oxidative and inert media at flow velocities up to 200 m/sec has been investigated for certain epoxy compounds containing powdered copper and zinc dust. The causes of ablative destruction and the factors tending to improve the ablation resistance are examined.
A. N. Machyulis, L. P. Zhilinskaite
openaire   +1 more source

In Situ Nanoscale Rapid Phase Stabilization Enables Zr-Phenolic Aerogel Composites with Excellent Ablation Resistance in Extreme Thermal Environments.

ACS Applied Materials and Interfaces
Element-hybrid phenolic aerogel composites are often utilized as lightweight thermal protection materials for aerospace craft. Zr-phenolic (Zr-PR) aerogels have been extensively studied due to their exceptional high-temperature resistance.
Huadong Fu, Rui Chen, Yong Xie, Zheng Wei, Yan Qin, Zhi-Xiong Huang   +5 more
semanticscholar   +1 more source

Effect of CrSi2 on the ablation resistance of a ZrSi2-Y2O3/SiC coating prepared by SAPS

, 2021
To improve the ablation resistance of carbon/carbon (C/C) composites, a proportional amount of ZrSi2-CrSi2-Y2O3 mixed particles were deposited on the surface of SiC-coated C/C composites by supersonic air plasma spraying (SAPS) to form a ZrSi2-CrSi2-Y2O3/
Fei Liu, He-Jun Li, Wei Zhang, Xiyuan Yao, Qian-Gang Fu, Xinhai He   +5 more
semanticscholar   +1 more source

Construction of phosphonitrile derivative-hybridized EPDM dense crosslinked networks for enhanced mechanics and ablation resistance

Journal of Materials Chemistry A
Construction of phosphonitrile derivative-hybridized EPDM dense crosslinked networks to simultaneously enhance the mechanics and ablation-resistance performance.
Shu-Meng Wang, Jian Wang, Xu-Tao Ma, Zhao-Qi Niu, Zong-Wu Zhang, Pei-Bo Xu, Beixi Chen, Xiao-Yan Ma, Shishan Yang, Xiao Hou   +9 more
semanticscholar   +1 more source

Ablation Resistance of HfC Coating Reinforced by HfC Nanowires in Cyclic Ablation Environment

Journal of the European Ceramic Society, 2017
Abstract To improve the ablation resistance of carbon/carbon composites in cyclic ablation environment, SiC/HfC ceramic coating reinforced by HfC nanowires was prepared. The microstructure, bonding strength, coefficient of thermal expansion and cyclic ablation resistance of the as-prepared coating were investigated. After incorporating HfC nanowires,
Jincui Ren, Yulei Zhang, Pengfei Zhang, Tao Li, Jinhua Li, Yang Yang   +5 more
exaly   +2 more sources

High‐temperature ablation resistance prediction of ceramic coatings using machine learning

Journal of The American Ceramic Society
Surface ablation temperature and linear ablation rate are two crucial indicators for ceramic coatings under ultrahigh temperatures service, yet the results collection of such two indicators in the process is difficult due to the long‐period material ...
Jia Sun, Zhixiang Zhang, Yu-Jia Zhang, Xuemeng Zhang, Jing-Jing Guo, Qian-Gang Fu, Lianwei Wu   +6 more
semanticscholar   +1 more source

Irrigated Tip Catheter Ablation in Right Posteroseptal Accessory Pathways Resistant to Conventional Ablation

Pacing and Clinical Electrophysiology, 2002
GARCÍA‐GARCÍA, J., et al.: Irrigated Tip Catheter Ablation in Right Posteroseptal Accessory Pathways Resistant to Conventional Ablation. Although RF ablation is an effective treatment of arrhythmias due to atrioventricular accessory pathways, there are cases refractory to conventional catheter ablation.
Javier, García-García, Jesús, Almendral, Angel, Arenal, José A, Serrano, Juan Carlos, Rodríguez, Olga, Medina, Julián, Villacastín, Esteban, Torrecilla, Vicente, Nieto   +8 more
openaire   +2 more sources

Harmonizing lightweight and ablation resistance: Design and performance of multilayer composite insulation materials for solid rocket motors

Polymer Composites
The realization of lightweight insulation materials is often accompanied by a decrease in ablation performance. Coordinating the contradiction between lightweight and ablation resistance is the key to the development of thermal protection technology ...
Li Wang, Jiang Li, Yi-Wei Wang, Jia-Xin Dong, L. Wan   +4 more
semanticscholar   +1 more source

ZrB2-based "Brick-and-Mortar" Composites Achieving the Synergy of Superior Damage Tolerance and Ablation Resistance.

ACS Applied Materials and Interfaces, 2020
The intrinsic brittleness and poor damage tolerance of ultra-high-temperature ceramics are the key obstacles to their engineering applications as non-ablative thermal protection materials.
Yehong Cheng, Y. An, Yaxiong Liu, Qiang Wei, W. Han, Xing-Hong Zhang, Peng Zhou, Chuncheng Wei, Ning Hu   +8 more
semanticscholar   +1 more source

Experimental Rocket Motor Applied in Evaluate the Ablation Performance of Ablation Resistance Materials

44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2008
In order to evaluate the ablative performance of ablation resistance material and to validate the effect of cooling structure exactly, the experimental system based on rocket motor is developed, then the experimental researches on how the ablative performance of the C/SiC ceramic matrix composite material and penetration C/C composite material is ...
Xianggeng Wei, Guoqiang He, Jiang Li, Peijin Liu, Wenbin Wang   +4 more
openaire   +1 more source