2）來優(yōu)化界面結(jié)合的新工藝，并比對了原石墨烯及具有包覆層石墨烯對鋁基納米復合材料的力學性能和微觀結(jié)構(gòu)的影響。結(jié)果表明，與添加純GNP相比，添加具有TiO2涂層的GNP的納米復合材料的力學性能提高。相比于基體，TiO2包覆GNP增強的納米復合材料的屈服強度、抗拉強度和顯微硬度分別增加了38.9%、34.4%和20.1%。性能的進一步改善是由于TiO2涂層優(yōu)化了增強相與基體之間的界面結(jié)合，從而提高了載荷傳遞的有效性。;Graphene nanoplatelets (GNPs) reinforced 7075Al nanocomposites were synthesized by pressure sintering method. A novel method for optimizing interfacial bonding through TiO2 coated GNPs was proposed. The effects of TiO2 coated GNPs on mechanical properties and microstructure of the aluminum matrix nanocomposites were investigated. Results show that the mechanical properties of the nanocomposites are improved by addition of TiO2 coated GNPs, compared with those of nanocomposites with pure GNPs. The yield strength, ultimate tensile strength, and microhardness of the nanocomposites reinforced by TiO2 coated GNPs are increased by 38.9%, 34.4%, and 20.1%, respectively, compared with those of the matrix. The improvement of the mechanical properties is attributed to the coating layer, which optimizes the interface bonding between the reinforcement and the matrix, thereby improving the efficiency of load transfer."/>
2涂層;7075鋁合金;復合材料;graphene nanoplatelets;TiO2 coating;7075Al alloy;composite"/>