Preparation method of Cf-HfCnw micronano multiscale toughened carbon matrix composite

• Main Authors: FU YANQIN, REN JINCUI, ZHAO ZHIGANG, ZHANG YULEI
• Format: Patent
• Language: Chinese; English
• Published: 18.09.2018
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention relates to a preparation method of a Cf-HfCnw micronano multiscale toughened carbon matrix composite. The preparation method comprises the following steps: soaking a low-density C/C composite with the density of 0.7-1.0 g/cm in a nickel nitrate ethanol solution, wherein generation of unnecessary change of state is avoided in the drying process; adding a 0.01-1% peroxide as an initiator to initiate the cross-linked polymerization of a precursor PHC and divinyl benzene; and successively preparing an HfC nanowire on the surface of the low-density C/C composite by adopting a precursor conversion method to realize the toughing of the carbon matrix composite on the micronano scale to obtain the Cf-HfCnw micronano multiscale toughened carbon matrix composite. The large-scale in-situ growth of the HfC nanowire on the surface of the low-density C/C composite is realized, and the effectively control to the appearance and the purity of the HfC nanowire can be realized. 本发明涉及种C-HfCnw微纳多尺度强韧化碳基复合材料的制备方法，将将密度