Simultaneous strengthening and toughening of reduced graphene oxide/alumina composites fabricated by molecular-level mixing process

Spark Plasma Sintered Zirconia Ceramic Composites with Graphene-Based Nanostructures

“…Concerning the starting materials, different advanced ceramics have been used as matrices, such as Si 3 N 4 [1], which has the highest fracture toughness reported for 1.5 vol% GBN filler content [2], SiC [3,4], hydroxyapatite [5], alumina [6,7], and, more recently, zirconia [8,9].…”

Fabrication of Al2O3/AlN micro-composites designed for tailored physical properties

“…Particles sizes were controlled to provide a large difference in the surface areas (particle sizes: AlN about 50 μm, Al 2 O 3 about 2~5 μm). The normal sintering temperature for AlN (> 1700℃) is much higher than that of Al 2 O 3 (1400-1600℃) [17][18][19][20][21]. The thickness of the interdiffusion layer in the final stage of sintering can be minimized when the composite is sintered at 1400℃…”

Preparation and mechanical properties of Si3N4 nanocomposites reinforced by Si3N4@rGO particles

“…14 However, graphene inevitably tends to agglomerate in the ceramic matrix due to van der Waals force and the π-π stacking effect, and this agglomeration phenomenon leads to the appearance of pores and stress concentrations. 17 Graphene oxide (GO), a layered material consisting of oxygen-containing functional groups on its basal planes and edges, 18 such as hydroxyl groups, carboxylic groups, and epoxy groups, has attracted wide attention due to its unique two-dimensional structure, extraordinary mechanical properties, and rich chemical properties. 16 Therefore, the dispersed state of graphene in the matrix directly determines the mechanical properties of nanocomposites to a large extent.…”

“…16 Therefore, the dispersed state of graphene in the matrix directly determines the mechanical properties of nanocomposites to a large extent. 17 Graphene oxide (GO), a layered material consisting of oxygen-containing functional groups on its basal planes and edges, 18 such as hydroxyl groups, carboxylic groups, and epoxy groups, has attracted wide attention due to its unique two-dimensional structure, extraordinary mechanical properties, and rich chemical properties. [19][20][21] A large number of oxygen-containing groups on the GO surface have the ability to react with organic and inorganic components to participate in novel surface/interface chemical reactions.…”