Abstract Super hard carbon microtubes derived from natural cotton are developed as a cost effective filler for composite applications. Two different carbon materials including synthesized carbon microtubes (CMT) and carbon nanotube (CNT) were used to produce titanium laminate composite via spark plasma sintering process. The sintering process was performed at 1200 °C for both Ti-CMT and Ti-CNT samples which led to the fully densified composites. The proposed mechanism confirmed by cross-sectional XRD investigation revealed formation of Titanium Carbide (TiC) between Ti layers as interfacial bonding phase. A significant improvement in bending strength (1273 ± 11 MPa) and hardness (537 ± 28 Vickers) of Ti-CMT composites was observed compared to titanium laminate and Ti-CNT composite. The results of current study demonstrate the considerable potential of inexpensive yet super hard carbon based material for various composite applications.

中文翻译：

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源自天然棉的超硬碳微管用于开发高性能钛复合材料

摘要 源自天然棉的超硬碳微管被开发为一种具有成本效益的复合材料应用填料。使用两种不同的碳材料，包括合成碳微管（CMT）和碳纳米管（CNT），通过放电等离子体烧结工艺生产钛层压复合材料。Ti-CMT 和 Ti-CNT 样品的烧结过程均在 1200°C 下进行，这导致了完全致密的复合材料。通过横截面 XRD 研究证实的拟议机制揭示了在 Ti 层之间形成了碳化钛 (TiC) 作为界面结合相。与钛层压板和 Ti-CNT 复合材料相比，观察到 Ti-CMT 复合材料的弯曲强度 (1273 ± 11 MPa) 和硬度 (537 ± 28 Vickers) 显着提高。