以泡沫SiC陶瓷为基本骨架, 以改性酚醛树脂为基体, 加入短切高硅氧玻璃纤维制备出陶瓷/纤维/树脂超混杂复合材料(SHCM),研究了泡沫陶瓷骨架和高硅氧纤维对材料力学性能的影响. 结果表明,泡沫陶瓷骨架有利于材料的刚度和尺寸稳定性提高. 加入泡沫陶瓷骨架后, 纤维/树脂/陶瓷超混杂复合材料的压缩强度和压缩模量增大,随着泡沫陶瓷骨架含量的提高, 弯曲模量大幅度提高而弯曲强度略有下降;随着高硅氧纤维含量的提高, 材料的弯曲强度及弯曲模量均明显提高.
A novel super--hybrid composite (SHCM) was prepared with foam SiC ceramics, high performance fibers and modified phenolic resin. Effect of foam ceramics and high silica glass fibers on the mechanical properties of super--hybrid composite was studied. The results show that foam ceramics can improve the hardness, size stability of the composite. Foam ceramics increases the compressive strength and compressive modulus of the composite. With the rise of foam ceramics' content, the flexural modulus of the composites increases greatly and the flexural strength decreases slightly. With the rise of high silica glass fibers' content, the flexural strength and modulus of the composite increase.
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