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高超声速导弹在大气层中飞行时气动加热严重,防热系统必不可少,而烧蚀型防热是目前应用最广泛的一种防热形式。现阶段利用风洞烧蚀法考核防热材料最为有效,但成本高昂、周期较长,不宜用作材料筛选阶段的考核手段。结合静态高温炉烧蚀法和等离子热流烧蚀法,设计出一种简便易行、热流条件易于调整的热防护材料烧蚀性能测试方法,并利用该方法开展了对几种热防护材料烧蚀性能的考核。实验结果表明,该方法能够模拟热防护材料在服役环境下的冲蚀行为,利用该方法可初步进行热防护材料的配方筛选和防热性能研究。
Hypersonic missiles in the atmosphere when the flight aerodynamic heating serious, essential anti-heat system, and ablation-type heat is currently the most widely used form of heat. At this stage the use of wind tunnel ablation method to assess the most effective heat-resistant materials, but the high cost, longer cycle, not suitable for material screening stage assessment means. Combining the static high temperature furnace ablation method and the plasma heat ablation method, a simple and easy-to-test test method of ablation property of heat-protective materials with easy adjustment of heat flow conditions is designed. By using this method, ablation of several heat- Performance assessment. The experimental results show that this method can simulate the erosion behavior of the thermal protection material under service environment, and can be used to study the formulation of the thermal protection material and the thermal protection performance.