Insulator material screen experiments and ablation characteristic under high acceleration condition

Yang Liu, Jiang Li, Guo Qiang He, Qiang Li, Xiang Yu Sun, Shu Fang Hu

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Focusing on the abnormal ablation of certain model solid rocket motor under flight overload condition, insulator material screen experiments were carried out based on the experimental simulation facility of high acceleration condition. Through the screen experiments the maximal carburization ablation rate and mass ablation rate were obtained, and the sort order of three kind of insulator ablation characteristic was achieved. In order to analyze the ablation mechanism of insulator, the surface and cross section configuration of the carburization layer were obtained by using the scanning electron microscope. The results show that: (1) under the same particles impacting conditions, the carburization ablation rate and mass ablation rate of insulator material B is maximal and A1 is minimal than others, and the material A take second place. The anti-particle erosion ability of material A1 is best than others. (2) the appropriate quantity of fiber and SiO2 could intensify the erosion resistance of ablatives because of the formation of the framework structures on carburization layer through the carbonization in situ of aramid fiber; (3) the new type insulator material system reinforced by aramid fiber and asbestos fiber synchronously was proposed.

Original languageEnglish
Pages (from-to)569-575
Number of pages7
JournalTuijin Jishu/Journal of Propulsion Technology
Volume32
Issue number4
StatePublished - Aug 2011

Keywords

  • Ablation
  • Experimental investigation
  • Insulator
  • Solid propellant rocket motor (SRM)

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