美国开发超高温C/C复合材料 抗烧蚀抗氧化性能提升20倍

Core Viewpoint - MATECH has partnered with a well-known defense contractor to develop hypersonic missile shells using its unique carbon fiber reinforced ZrOC (C/ZrOC) ceramic matrix composites, having successfully mass-produced 50 kilograms of these materials in 2023 [1] Group 1: Material Properties and Performance - The C/ZrOC ceramic matrix composite developed by MATECH is designed to withstand extreme temperatures exceeding 2760°C, making it suitable for hypersonic environments [1] - This material exhibits low ablation rates, is cost-effective, and can be produced on a large scale, with a relatively simple manufacturing process [1][7] - MATECH's C/ZrOC thermal protection system is also applicable to reusable thermal shields for commercial spacecraft, capable of enduring extreme thermal flux during lunar and Mars re-entry [3] Group 2: Technological Innovations - MATECH has developed a high-density carbon fiber reinforced carbon matrix (C/C) composite that enhances ablation and oxidation resistance by up to 20 times compared to existing products, indicating potential for widespread application in hypersonic missiles and re-entry vehicle components [7] - The company has focused on commercializing high-temperature and ultra-high-temperature ceramic fiber and ceramic matrix composites since its establishment in 1989, developing a range of pre-ceramic polymers for high-temperature structural applications [3] Group 3: Manufacturing Techniques - MATECH has successfully demonstrated a strategy to achieve higher density in ceramic matrix composites by reducing porosity to 7-10% from the preform stage, resulting in materials with desired strength and toughness [6]