Effects of Oxygen Content on the Ablation Behavior of Silicone Rubber-Based Insulation Material
A self-designed oxygen-kerosene ablation system was employed to research the ablation properties of silicone rubber-based insulation material under different oxygen-rich conditions, that is, 0%, 5.00%, 7.71%, 17.01%, and 18.50%. The morphology of posttest specimens was analyzed via a scanning electr...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/6592972 |
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| author | Yi-ang Shi Bai-lin Zha Qing-dong Su Xu-dong Jia |
| author_facet | Yi-ang Shi Bai-lin Zha Qing-dong Su Xu-dong Jia |
| author_sort | Yi-ang Shi |
| collection | DOAJ |
| description | A self-designed oxygen-kerosene ablation system was employed to research the ablation properties of silicone rubber-based insulation material under different oxygen-rich conditions, that is, 0%, 5.00%, 7.71%, 17.01%, and 18.50%. The morphology of posttest specimens was analyzed via a scanning electron microscope (SEM), and the ablation rates were calculated. Experimental results showed that when the particle concentration was a fixed value, the mass and the linear ablation rates increased first and then decreased with the rise of oxygen content; the maximum values were 0.572 g/s and 0.933 mm/s, respectively. Under high oxygen-rich conditions, the formation of silicone rubber restricted the further increase of the ablation rates, filling more gaps of the reaction layer with liquid silicone rubber. Meanwhile, the thickness of the liquid glass layer attached to the surface was increased, which acted as a buffer against the impacts and erosion of particles and retarded the consumption and recession of materials. Excess oxygen spread to the edge of the ablation pit and reacted. Finally, these led to the increase in diameter of the ablation pit and the decrease of two types of ablation rates. |
| format | Article |
| id | doaj-art-9ebc7b40d1e54269bddd1de481da4b80 |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-9ebc7b40d1e54269bddd1de481da4b802025-08-20T03:38:43ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742019-01-01201910.1155/2019/65929726592972Effects of Oxygen Content on the Ablation Behavior of Silicone Rubber-Based Insulation MaterialYi-ang Shi0Bai-lin Zha1Qing-dong Su2Xu-dong Jia3206 Department, Rocket Force University of Engineering, Xi’an 710025, China206 Department, Rocket Force University of Engineering, Xi’an 710025, China206 Department, Rocket Force University of Engineering, Xi’an 710025, China206 Department, Rocket Force University of Engineering, Xi’an 710025, ChinaA self-designed oxygen-kerosene ablation system was employed to research the ablation properties of silicone rubber-based insulation material under different oxygen-rich conditions, that is, 0%, 5.00%, 7.71%, 17.01%, and 18.50%. The morphology of posttest specimens was analyzed via a scanning electron microscope (SEM), and the ablation rates were calculated. Experimental results showed that when the particle concentration was a fixed value, the mass and the linear ablation rates increased first and then decreased with the rise of oxygen content; the maximum values were 0.572 g/s and 0.933 mm/s, respectively. Under high oxygen-rich conditions, the formation of silicone rubber restricted the further increase of the ablation rates, filling more gaps of the reaction layer with liquid silicone rubber. Meanwhile, the thickness of the liquid glass layer attached to the surface was increased, which acted as a buffer against the impacts and erosion of particles and retarded the consumption and recession of materials. Excess oxygen spread to the edge of the ablation pit and reacted. Finally, these led to the increase in diameter of the ablation pit and the decrease of two types of ablation rates.http://dx.doi.org/10.1155/2019/6592972 |
| spellingShingle | Yi-ang Shi Bai-lin Zha Qing-dong Su Xu-dong Jia Effects of Oxygen Content on the Ablation Behavior of Silicone Rubber-Based Insulation Material International Journal of Aerospace Engineering |
| title | Effects of Oxygen Content on the Ablation Behavior of Silicone Rubber-Based Insulation Material |
| title_full | Effects of Oxygen Content on the Ablation Behavior of Silicone Rubber-Based Insulation Material |
| title_fullStr | Effects of Oxygen Content on the Ablation Behavior of Silicone Rubber-Based Insulation Material |
| title_full_unstemmed | Effects of Oxygen Content on the Ablation Behavior of Silicone Rubber-Based Insulation Material |
| title_short | Effects of Oxygen Content on the Ablation Behavior of Silicone Rubber-Based Insulation Material |
| title_sort | effects of oxygen content on the ablation behavior of silicone rubber based insulation material |
| url | http://dx.doi.org/10.1155/2019/6592972 |
| work_keys_str_mv | AT yiangshi effectsofoxygencontentontheablationbehaviorofsiliconerubberbasedinsulationmaterial AT bailinzha effectsofoxygencontentontheablationbehaviorofsiliconerubberbasedinsulationmaterial AT qingdongsu effectsofoxygencontentontheablationbehaviorofsiliconerubberbasedinsulationmaterial AT xudongjia effectsofoxygencontentontheablationbehaviorofsiliconerubberbasedinsulationmaterial |