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尖端科学技术的飞速发展,对难熔金属和金属陶瓷材料的使用日益迫切。对其性能的要求也很严峻,如固体火箭发动机用的喷管喉衬,不仅要承受高温、高压、高速气流的作用,还必须经受严重的烧蚀考验。因此,这种材料应具有相应条件下的机械、物理以及热力学等性质。但是,这些性能的测定、用普通的方法和设备是无法完成的。
The rapid development of cutting-edge science and technology, the use of refractory metal and cermet materials is increasingly urgent. Its performance requirements are also very serious, such as solid rocket engine nozzle throat lining, not only to withstand the role of high temperature, high pressure, high-speed airflow, you must also undergo a severe test of ablation. Therefore, this material should have the corresponding conditions of mechanical, physical and thermodynamic properties. However, the determination of these properties can not be done by ordinary methods and equipment.