DEGRADATION OF CARBON-BASED MATERIALS UNDER ABLATIVE CONDITIONS PRODUCED BY A HIGH ENTHALPY PLASMA JET. doi: 10.5028/jatm.2010.02013340
A stationary experiment was performed to study the degradation of carbon-based materials by immersion in a plasma jet. In the experiment, graphite and C/C composite were chosen as the target materials, and the reactive plasma jet was generated by an air plasma torch. For macroscopic study of the mat...
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Instituto de Aeronáutica e Espaço (IAE)
2011-07-01
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Series: | Journal of Aerospace Technology and Management |
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Online Access: | https://www.jatm.com.br/jatm/article/view/37 |
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author | Gilberto Petraconi Alexei Mikhailovich Essiptchouk Leonid Ivanovich Charakhovski Choyu Otani Homero Santiago Maciel Rodrigo Pessoa Maria Luisa Gregori Sônia Fonseca Costa |
author_facet | Gilberto Petraconi Alexei Mikhailovich Essiptchouk Leonid Ivanovich Charakhovski Choyu Otani Homero Santiago Maciel Rodrigo Pessoa Maria Luisa Gregori Sônia Fonseca Costa |
author_sort | Gilberto Petraconi |
collection | DOAJ |
description | A stationary experiment was performed to study the degradation of carbon-based materials by immersion in a plasma jet. In the experiment, graphite and C/C composite were chosen as the target materials, and the reactive plasma jet was generated by an air plasma torch. For macroscopic study of the material degradation, the sample’s mass losses were measured as function of the exposure time under various temperatures on the sample surface. A microscopic analysis was then carried out for the study of microscopic aspects of the erosion of material surface. These experiments showed that the mass loss per unit area is approximately proportional to the exposure time and strongly depends on the temperature of the material surface. The mass erosion rate of graphite was appreciably higher than the C/C composite. The ablation rate in the carbon matrix region in C/C composite was also noticeably higher than that in the fiber region. In addition, the latter varied according to the orientation of fibers relatively to the flow direction. These tests indicated an excellent ablation resistance of the C/C composite, thus being a reliable material for rocket nozzles and heat shielding elements of the protection systems of hypersonic apparatuses from aerodynamic heating. |
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institution | Directory Open Access Journal |
issn | 2175-9146 |
language | English |
last_indexed | 2024-04-13T03:19:46Z |
publishDate | 2011-07-01 |
publisher | Instituto de Aeronáutica e Espaço (IAE) |
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series | Journal of Aerospace Technology and Management |
spelling | doaj.art-8415b2aa29554594837e5aec2b734f7f2022-12-22T03:04:48ZengInstituto de Aeronáutica e Espaço (IAE)Journal of Aerospace Technology and Management2175-91462011-07-0121DEGRADATION OF CARBON-BASED MATERIALS UNDER ABLATIVE CONDITIONS PRODUCED BY A HIGH ENTHALPY PLASMA JET. doi: 10.5028/jatm.2010.02013340Gilberto Petraconi0Alexei Mikhailovich Essiptchouk1Leonid Ivanovich Charakhovski2Choyu Otani3Homero Santiago Maciel4Rodrigo Pessoa5Maria Luisa Gregori6Sônia Fonseca Costa7Technological Institute of Aeronautics São José dos Campos – BrazilLuikov Heat and Mass Transfer Institute Minsk – BelarusLuikov Heat and Mass Transfer Institute Minsk – BelarusTechnological Institute of Aeronautics São José dos Campos – BrazilTechnological Institute of Aeronautics São José dos Campos – BrazilTechnological Institute of Aeronautics São José dos Campos – BrazilInstitute of Aeronautics and Space São José dos Campos – BrazilInstitute of Aeronautics and Space São José dos Campos – BrazilA stationary experiment was performed to study the degradation of carbon-based materials by immersion in a plasma jet. In the experiment, graphite and C/C composite were chosen as the target materials, and the reactive plasma jet was generated by an air plasma torch. For macroscopic study of the material degradation, the sample’s mass losses were measured as function of the exposure time under various temperatures on the sample surface. A microscopic analysis was then carried out for the study of microscopic aspects of the erosion of material surface. These experiments showed that the mass loss per unit area is approximately proportional to the exposure time and strongly depends on the temperature of the material surface. The mass erosion rate of graphite was appreciably higher than the C/C composite. The ablation rate in the carbon matrix region in C/C composite was also noticeably higher than that in the fiber region. In addition, the latter varied according to the orientation of fibers relatively to the flow direction. These tests indicated an excellent ablation resistance of the C/C composite, thus being a reliable material for rocket nozzles and heat shielding elements of the protection systems of hypersonic apparatuses from aerodynamic heating.https://www.jatm.com.br/jatm/article/view/37GraphiteC/C CompositeAblationPlasma torchCalorimetric probeEnthalpy probe |
spellingShingle | Gilberto Petraconi Alexei Mikhailovich Essiptchouk Leonid Ivanovich Charakhovski Choyu Otani Homero Santiago Maciel Rodrigo Pessoa Maria Luisa Gregori Sônia Fonseca Costa DEGRADATION OF CARBON-BASED MATERIALS UNDER ABLATIVE CONDITIONS PRODUCED BY A HIGH ENTHALPY PLASMA JET. doi: 10.5028/jatm.2010.02013340 Journal of Aerospace Technology and Management Graphite C/C Composite Ablation Plasma torch Calorimetric probe Enthalpy probe |
title | DEGRADATION OF CARBON-BASED MATERIALS UNDER ABLATIVE CONDITIONS PRODUCED BY A HIGH ENTHALPY PLASMA JET. doi: 10.5028/jatm.2010.02013340 |
title_full | DEGRADATION OF CARBON-BASED MATERIALS UNDER ABLATIVE CONDITIONS PRODUCED BY A HIGH ENTHALPY PLASMA JET. doi: 10.5028/jatm.2010.02013340 |
title_fullStr | DEGRADATION OF CARBON-BASED MATERIALS UNDER ABLATIVE CONDITIONS PRODUCED BY A HIGH ENTHALPY PLASMA JET. doi: 10.5028/jatm.2010.02013340 |
title_full_unstemmed | DEGRADATION OF CARBON-BASED MATERIALS UNDER ABLATIVE CONDITIONS PRODUCED BY A HIGH ENTHALPY PLASMA JET. doi: 10.5028/jatm.2010.02013340 |
title_short | DEGRADATION OF CARBON-BASED MATERIALS UNDER ABLATIVE CONDITIONS PRODUCED BY A HIGH ENTHALPY PLASMA JET. doi: 10.5028/jatm.2010.02013340 |
title_sort | degradation of carbon based materials under ablative conditions produced by a high enthalpy plasma jet doi 10 5028 jatm 2010 02013340 |
topic | Graphite C/C Composite Ablation Plasma torch Calorimetric probe Enthalpy probe |
url | https://www.jatm.com.br/jatm/article/view/37 |
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