以聚碳硅烷(PCS)为先驱体,T300碳纤维和光威(GW)碳纤维为增强纤维,采用先驱体浸渍-裂解工艺(PIP)分别制备了Cf/SiC复合材料.在相同工艺条件下,所制备GW碳纤维复合材料的力学性能达到了T300纤维复合材料的性能水平,两种纤维增强SiC基复合材料抗弯强度分别为364 MPa和437 MPa.采用扫描电镜观察试样断口形貌及纤维拔出情况,并分析了复合材料的结构和性能差异.
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