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Open AccessArticle

Surface Erosion Analysis for Thermal Insulation Materials of Graphite and Carbon–Carbon Composite

1
School of Comprehensive Aviation, Hanseo University, Taean 32158, Korea
2
Department of Electrical Engineering, Soonchunhyang University, Asan 31538, Korea
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(16), 3323; https://doi.org/10.3390/app9163323
Received: 17 July 2019 / Revised: 26 July 2019 / Accepted: 10 August 2019 / Published: 13 August 2019
(This article belongs to the Section Materials)
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PDF [3936 KB, uploaded 13 August 2019]
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Abstract

A rocket uses fuel and oxidizers to generate propulsion by combustion and ejection, and is used for space exploration aircrafts, weapons, and satellite launches. In particular, the nozzle generating thrust of solid-propellant rockets is exposed to a high-temperature and high-pressure environment with erosion occurring from the combustion gas. When erosion occurs on the nozzle throat of such a rocket, it has a great impact on the flight performance such as reaching distance and flight speed. Many studies have been conducted to characterize erosion based on the thermochemical erosion model, since it has become important to choose nozzle materials suitable for such environments having robustness against combustion gasses of high temperature and high pressure. However, there is a limit to fully analyze the erosion characteristics only by the thermochemical erosion model. In this paper, we thus consider the mechanical erosion model with the thermochemical model for better understanding of erosion characteristics and investigate the thermochemical and mechanical erosion characteristics of nozzle throat heat-resistant materials made of graphite and carbon–carbon composites; the main factors affecting erosion are discussed by comparing the results of the experimental and theoretical models. View Full-Text
Keywords: carbon–carbon composites; erosion; graphite; porosity; rocket nozzle throat carbon–carbon composites; erosion; graphite; porosity; rocket nozzle throat
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Kim, Y.; Cho, J. Surface Erosion Analysis for Thermal Insulation Materials of Graphite and Carbon–Carbon Composite. Appl. Sci. 2019, 9, 3323.

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