关键词: 烧蚀试验;难熔金属合金;喷管喉部

Abstract: Experimental method for ablation of throat liner material in a high pressure gas launch device is introduced.Experimental results of materials such as gun brass, tungsten infiltrated copper, tungsten infiltrated silver, tantalum 10-tungsten, and molybdenum alloy are presented in this paper. The tantalum 10-tungsten displayed the best ablation resistant ability.

Key words: Ablation test;Refractory metal alloy;Nozzle throat