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http://dx.doi.org/10.20910/JASE.2017.11.5.42

A Study on Erosion Structure Properties for Thermal Insulation Materials on Carbon-Carbon Composites and Graphite Nozzle Throat  

Kim, Young In (School of Aerospace & Mechanical Engineering, Korea Aerospace University(Hanseo University))
Lee, Soo Yong (School of Aerospace & Mechanical Engineering, Korea Aerospace University)
Publication Information
Journal of Aerospace System Engineering / v.11, no.5, 2017 , pp. 42-49 More about this Journal
Abstract
The solid rocket motor(SRM) consists of a motor case, igniter, propellants, nozzle, insulation, controller, and driving device. The liquid rocket propulsion systems(LRPSs) cools the nozzle by the fuel and oxidizer but SRM does not cool the nozzle. The nozzle of SRM is high temperature condition and high velocity condition so occurs the erosion by combustion gas. This erosion occurs the change of nozzle throat and reduces thrust performance of rocket. The material of Rocket nozzle is minimization of erosion and insulation effect and endure the shear force, high temperature and high pressure. The purpose of this study is to investigate the erosion characteristics of solid rocket nozzles by each combustion time. Through the structure inspection of Graphite and C-C composite, identify the characteristics of the microstructure before and after erosion.
Keywords
Rocket Nozzle Throat; Graphite; Carbon-Carbon Composites; Thermochemistry; Erosion; Char layer; Pyrolysis layer;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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