Experiment on ablation characteristic of EPDM insulator under particles erosion condition

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

科研成果: 期刊稿件文章同行评审

11 引用 (Scopus)

摘要

Ablation experiments of particle erosion for EPDM basic formulation, overload resistance formulation, no SiO2 formulation and no fiber formulation were performed on ground simulation test motor with high overload. Based on the results of ablation rate and surface characteristic of carburization layer, the formation mechanism of compact structure in carburization layer with both basic formulation and overload resistance formulation was studied. Ablation modes for variety formulation materials were analyzed as well. The results show that: the ablation ratios of different formulation at the same particles impacting conditions rank as follows: overload resistance formulation < basic formulation < no SiO2 formulation < no fiber formulation. It also shows that there are huge discrepancies in the surface and fracture surface profiles of insulation layer, erosion modes and destroy mechanisms of different formulations. Compact and loose structures were formed in carburization layer of both basic formulation and overload resistance formulation during erosion process. While no SiO2 formulation and no fiber formulation materials are destroyed mainly by graininess and sheet shape remove. Finally it shows that the erosion resistance of ablatives is improved by the compact structures on the surface, which are close related to the content of the fiber, SiO2 and the erosion environment.

源语言英语
页(从-至)612-617
页数6
期刊Tuijin Jishu/Journal of Propulsion Technology
31
5
出版状态已出版 - 10月 2010

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