Determination of heat capacity of carbon composites with application to carbon/phenolic ablators up to high temperatures

Torres-Herrador, Francisco; Turchi, Alessandro; Blondeau, Julien; Magin, Thierry

doi:10.1016/j.ast.2020.106375

Cited by 20 publications

(9 citation statements)

References 25 publications

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“…Design codes for heat shields [35,36] track the elemental composition of the gases and then compute the equilibrium composition. Therefore, it is important that the elemental composition of the pyrolysis products resembles that of the one obtained through other means such as Organic Elemental Analysis [37]. Moreover, this comparison also validates our methodology for yield quantification.…”

Section: Comparison With Elemental Analysissupporting

confidence: 65%

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Decomposition of carbon/phenolic composites for aerospace heatshields: Detailed speciation of phenolic resin pyrolysis products

Torres-Herrador

Eschenbacher

Coheur

et al. 2021

Aerospace Science and Technology

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Section: Comparison With Elemental Analysissupporting

confidence: 65%

“…A comparison between the stepwise measurements and TGA data on phenolic resin [37] has also been performed. The TGA experiment was performed using a STA 449 F3 Jupiter (Netzsch) in argon atmosphere at 20 K/ min with a purging gas of 50 ml/ min and platinum crucibles with a pierced lid [7].…”

Section: Comparison With Tgamentioning

confidence: 99%

Decomposition of carbon/phenolic composites for aerospace heatshields: Detailed speciation of phenolic resin pyrolysis products

Torres-Herrador

Eschenbacher

Coheur

et al. 2021

Aerospace Science and Technology

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“…Each sample was heated between room temperature and 1400 °C at a heating rate of 20 °C/min. In order to obtain reliable results [40] the bulk samples were reduced to powder with an agata mortar, then the powders were well mixed and divided with the quartering method until obtaining the desired quantity for the test (about 40 mg).…”

Section: Thermal and Mechanical Properties Evaluationmentioning

confidence: 99%

Design of New Carbon-Phenolic Ablators: Manufacturing, Plasma Wind Tunnel Tests and Finite Element Model Rebuilding

et al. 2021

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Ablative materials represent a widespread solution for shielding space vehicles from overheating during a reentry phase in atmosphere where the high heating fluxes and the consequent high temperatures cannot be compatible with the vehicle structure and with the safety of the payload and/or the crew. In this work, two different kinds of carbon-phenolic ablators with a density of 0.3 g/cm3 were manufactured and their mechanical and thermal properties were experimentally evaluated. The thermal protection performances of the developed ablators were assessed in a hypersonic plasma wind tunnel facility, setting representative enthalpy and heat flux conditions (6 and 13 MW/m2), consistent with atmospheric reentry missions from high energy orbits. Data of the experimental tests were compared with the results obtained by a finite element model built up for these materials with the commercial software SAMCEF Amaryllis. All results enlighten the good performances of the ablators under severe heat flux conditions and outline their operating limits.

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“…In recent years, with the development of material science and the demand of application field, new carbon phenolic materials based on modified high performance phenolic resin have been paid more and more attention. The studies are mainly focused on the fabrication, ablation mechanism and thermodynamic parameters of the C/Ph composite [3][4][5][6][7][8][9]. The physical and mechanical properties of this new material, especially the characteristics of thermal shock wave produced by pulse radiation, is one of the hot issues that people pay close attention to.…”

Section: Introductionmentioning

confidence: 99%

Experimental measurement of thermal shock wave in C/Ph induced by electron beam radiation

Peng¹,

Lin²

2021

Vib. proced.

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The attenuation characteristic of thermal shock wave in a new type of carbon phenolic (C/Ph) radiated by pulsed electron beam were studied experimentally on "FLASH II" accelerator with PVDF transducer. The attenuation trend of thermal shock wave produced by electron beam radiation in the material is calculated by means of numerical simulation. Experimental results show that: when electron beam energy fluxes are in the range of 169-531 J•cm -2 and the electron's mean energy is about 0.6 MeV, stress at 4 mm from the irradiation surface of C/PH are in the range of 0.12-2.22GPa. The experimental results of the attenuation trend of thermal shock waves are in good agreement with the simulation results.

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Determination of heat capacity of carbon composites with application to carbon/phenolic ablators up to high temperatures

Cited by 20 publications

References 25 publications

Decomposition of carbon/phenolic composites for aerospace heatshields: Detailed speciation of phenolic resin pyrolysis products

Decomposition of carbon/phenolic composites for aerospace heatshields: Detailed speciation of phenolic resin pyrolysis products

Design of New Carbon-Phenolic Ablators: Manufacturing, Plasma Wind Tunnel Tests and Finite Element Model Rebuilding

Experimental measurement of thermal shock wave in C/Ph induced by electron beam radiation

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