【摘要】 为提高碳纤维与铝基体之间的结合效果，本文探究了ZrO₂涂层厚度对连续碳纤维增强铝基复合材料力学性能的影响.通过溶胶-凝胶法在碳纤维表面制备了不同厚度的ZrO₂涂层，采用双辊铸轧工艺制备了连续碳纤维增强铝基复合材料板带，研究了不同涂层厚度碳纤维的微观形貌组织及所制备复合材料的界面和断口特征，并对复合板进行了拉伸力学性能测试.实验结果表明：将碳纤维浸渍于所制备的溶胶内涂覆20 min可以在其表面得到均匀的ZrO₂涂层；轧制速度2.6 m/min,辊间距2 mm,铝液浇注温度950 K时制备的复合材料性能最佳，抗拉强度提高了72.5%.更多还原

【Abstract】 In order to improve the bonding effect between carbon fiber and aluminum matrix, the effect of ZrO₂ coating thickness on the mechanical properties of continuous carbon fiber reinforced aluminum matrix composites was investigated in this paper.ZrO₂ coatings with different thickness were prepared on the surface of carbon fibers by sol-gel method.Continuous carbon fiber reinforced aluminum matrix composite strips were prepared by a twin-roll casting process.The microstructure of carbon fibers with different coating thickness and the interface and fracture characteristics of the composites were studied, and The tensile mechanical properties of the composite plates were tested.The experimental results show that the uniform ZrO₂ coating can be obtained on the surface of carbon fiber immersed in the prepared sol for 20 min; When the rolling speed is 2.6 m/min, the roll spacing is 2 mm and the pouring temperature of molten aluminum is 950 K,the properties of the composites are the best, and the tensile strength is increased by 72.5%.更多还原