It appears you don't have support to open PDFs in this web browser. To view this file, Open with your PDF reader
Abstract
Carbon fiber reinforced silicon carbide-hafnium carbide (C/SiC-HfC) composite was prepared by precursor infiltration and pyrolysis process. Then, ablation behavior of C/SiC-HfC was evaluated in plasma wind tunnel. It was found that oxide layer formed during ablation significantly influenced the surface temperature. Formation of dense HfO2-SiO2 layer under low heat flux led to stable surface temperature. Silica (SiO2) on the surface was gradually consumed when heat flux increased, resulting in conversion of HfO2-SiO2 on the surface to HfO2. Converted HfO2 with high catalytic coefficient absorbed more energy, causing gradual increase in the surface temperature. Formed oxide layer was destroyed at high heat flux and high stagnation point pressure. After carbon fiber lost the protection of HfO2-SiO2 layer, it burned immediately, leading to surface temperature jump.
You have requested "on-the-fly" machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Show full disclaimer
Neither ProQuest nor its licensors make any representations or warranties with respect to the translations. The translations are automatically generated "AS IS" and "AS AVAILABLE" and are not retained in our systems. PROQUEST AND ITS LICENSORS SPECIFICALLY DISCLAIM ANY AND ALL EXPRESS OR IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES FOR AVAILABILITY, ACCURACY, TIMELINESS, COMPLETENESS, NON-INFRINGMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Your use of the translations is subject to all use restrictions contained in your Electronic Products License Agreement and by using the translation functionality you agree to forgo any and all claims against ProQuest or its licensors for your use of the translation functionality and any output derived there from. Hide full disclaimer
Details
1 Northwestern Polytechnical University, Science and Technology on Thermostructural Composite Materials Laboratory, Xi’an, China (GRID:grid.440588.5) (ISNI:0000 0001 0307 1240)
2 Beijing Institute of Long March Aerospace Vehicles, Beijing, China (GRID:grid.440588.5)
3 Northwestern Polytechnical University, Science and Technology on Thermostructural Composite Materials Laboratory, Xi’an, China (GRID:grid.440588.5) (ISNI:0000 0001 0307 1240); China Aerodynamics Research and Development Center, Ultrahigh Speed Aerodynamics Research Institute, Mianyang, China (GRID:grid.469557.c)
4 Beijing Institute of Technology, Institute of Advanced Structure Technology, Haidian District, Beijing, China (GRID:grid.43555.32) (ISNI:0000 0000 8841 6246)