Effect of Interfacial Structure on Mechanical Properties of Graphene Reinforced AlO-WC Matrix Ceramic Composite.

The interfacial structures and interfacial bonding characteristics between graphene and matrix in graphene-reinforced AlO-WC matrix ceramic composite prepared by two-step hot pressing sintering were systematically investigated. Three interfacial structures including graphene-AlO, graphene-AlOC and graphene-WC were determined in the AlO-WC-TiC-graphene composite by TEM. The interfacial adhesion energy and interfacial shear strength were calculated by first principles, and it has been found that the interfacial adhesion energy and interfacial shear strength of the graphene-AlOC interface (0.

Reinforcing Mechanisms of Graphene and Nano-TiC in AlO-Based Ceramic-Tool Materials.

Graphene and nano-TiC, which have good reinforcing effects on AlO-based ceramic-tool materials, are generally used as additive phases for ceramics. In this study, nine kinds of samples were sintered, to investigate the effects of graphene and nano-TiC on the reinforcing mechanisms of AlO-based ceramics. The experimental results indicated that adding 0.