Abstract
Abstract Nanocarbon materials (carbon nanotubes, graphene, graphene oxide, reduced graphene oxide, etc.) are considered the ideal toughening phase of ceramic matrix composites because of their unique structures and excellent properties. The strengthening and toughening effect of nanocarbon is attributed to several factors, such as their dispersibility in the matrix, interfacial bonding state with the matrix, and structural alteration. In this paper, the development state of nanocarbon-toughened ceramic matrix composites is reviewed based on the preparation methods and basic properties of nanocarbon-reinforced ceramic matrix composites. The assessment is implemented in terms of the influence of the interface bonding condition on the basic properties of ceramic matrix composites and the methods used to improve the interface bonding. Furthermore, the strengthening and toughening mechanisms of nanocarbon-toughened ceramic matrix composites are considered. Moreover, the key problems and perspectives of research work relating to nanocarbon-toughened ceramic matrix composites are highlighted.
Highlights
Nanocarbon materials are considered the ideal toughening phase of ceramic matrix composites because of their unique structures and excellent properties
The development state of nanocarbon-toughened ceramic matrix composites is reviewed based on the preparation methods and basic properties of nanocarbon-reinforced ceramic matrix composites
The assessment is implemented in terms of the influence of the interface bonding condition on the basic properties of ceramic matrix composites and the methods used to improve the interface bonding
Summary
Abstract: Nanocarbon materials (carbon nanotubes, graphene, graphene oxide, reduced graphene oxide, etc.) are considered the ideal toughening phase of ceramic matrix composites because of their unique structures and excellent properties. The strengthening and toughening mechanisms of nanocarbon-toughened ceramic matrix composites are considered. Nanocarbon materials (carbon nanotubes, graphene, graphene oxide, reduced graphene oxide, etc.) have excellent thermal, electrical, and mechanical properties. Nanocarbon is regarded as an ideal reinforcing phase in ceramic matrix materials. The composites in these studies exhibit outstanding improvement of the mechanical properties that results from the strengthening and toughening effect of nanocarbon. (I) Nanocarbon is difficult to disperse in ceramic matrix composites because of its considerably large specific surface area, surface energy, van der Waals forces caused by the intermolecular electrical dipole moment, and interactions between functional groups, along with easy aggregation and entanglement properties [22]. Because a rigorous toughness should be measured from the energy releasing rate, i.e., the energy needs to make the crack propagating
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