一、前言随着宇航及其它尖端技术的飞速发展,迫切希望采用高比强、高比刚的纤维及其织物增强塑料、碳、金属、陶瓷和橡胶等基体材料,制成性能良好,用途广泛的复合材料,以满足苛刻条件下,对结构材料和耐烧蚀材料日益增长的需求。众所周知,碳纤维不足之处是其脆性,各向异性和抗氧化性能差等等,利用它纤细 I. INTRODUCTION With the rapid development of aerospace and other cutting-edge technologies, there is an urgent need to use high-strength, high-density fibers and their fabrics to reinforce matrix materials such as plastics, carbon, metals, ceramics and rubbers, Of composite materials to meet the growing demands of structural and erosion-resistant materials under harsh conditions. As we all know, the inadequacies of carbon fiber is its brittleness, anisotropy and poor oxidation resistance, etc., using it slender