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固体推进剂新配方的研制和装药形式的优化，对喷管的工作条件产生显著影响．也对喷管材料提出了更高的要求。对喷管抗烧蚀和热防护材料及部件生产实践的研究表明，碳－碳复合材料除具有很高的抗烧蚀稳定性外，还具有良好的物理机械性能，而存在于喷管设计中一些问题，诸如热防护元件初始厚度的确定、各种材料的多层结合与密度差异、超声波阻尼因子较大等，也可以通过无损检测手段，实行质量控制加以解决。
The development of new formulations of solid propellants and the optimization of charge forms have a significant impact on the working conditions of the nozzle. Also made a higher nozzle material requirements. Research on nozzle ablation and heat protection material and component production practice shows that the carbon-carbon composite has good physical and mechanical properties in addition to having high anti-erosion stability, but exists in the nozzle design Some problems, such as the determination of the initial thickness of the thermal protection element, the multi-layer combination and density of various materials, the large ultrasonic damping factor, etc., can also be solved by non-destructive testing and quality control.