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Kinetic Parameters and Thermal Properties of a Cork-Based Material

Böhrk, Hannah and Stokes, Jamesa (2015) Kinetic Parameters and Thermal Properties of a Cork-Based Material. 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, Jul. 2015, Glasgow, UK. DOI: 10.2514/6.2015-3532

Full text not available from this repository.

Official URL: http://arc.aiaa.org/doi/pdf/10.2514/6.2015-3532

Abstract

In order to model the thermal response of recessing or degrading material, the rate of thermal decomposition and various physical properties must be known. A cork-based ablative material is investigated for the rate of thermal decomposition from room temperature to 1823 K. Thermogravimetric analysis (TGA) measurements are obtained at different heating rates and several isoconversional methods are used to determine the activation energy, and a parallel distributed activation energy model was used to describe the overall rate of decomposition. The parameters of the model were calculated using a pattern search optimization method, and predicted behaviors of the ablator at additional heating rates are discussed. Results from differential thermal analysis (DTA), laser flash analysis (LFA) and scanning electron microscopy (SEM) are also presented here.

Item URL in elib:https://elib.dlr.de/98676/
Document Type:Conference or Workshop Item (Speech)
Title:Kinetic Parameters and Thermal Properties of a Cork-Based Material
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Böhrk, HannahHannah.Boehrk (at) dlr.deUNSPECIFIED
Stokes, JamesaDLR StuttgartUNSPECIFIED
Date:July 2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.2514/6.2015-3532
Status:Published
Keywords:ablation, degradation
Event Title:20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
Event Location:Glasgow, UK
Event Type:international Conference
Event Dates:Jul. 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Shefex III
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Space System Integration
Deposited By: Böhrk, Hannah
Deposited On:13 Jan 2016 11:57
Last Modified:10 May 2016 23:32

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