关键词: 绝热材料;动态烧蚀率;烧蚀形貌 

Abstract: To investigate the dynamic ablation characteristics of insulation materials, a real-time ablation test method for insulation material in open environment, in which the position and structure of insulation material ablation surface can be recorded by high-speed CCD camera, was established. The dynamic ablation rate and the morphology of the ablation surface can be obtained from the ablation images by means of optical data process technology. The test can be used to evaluate the real-time ablation property of the insulation materials. The dynamic ablation rate at any time and average ablation rate can be obtained by batch process of the serial surface recession images. The images can be also used to study the characteristics of charring layer formation and consumption.

Key words: Insulation material; Dynamic ablation rate; Ablation morphology