In the current research, we analyse various mechanical and machining characteristics of SIC/Al 7075 aluminium composites. These alloys exhibit twinning effects at high temperatures, which reduce their usage for functional applications. To overcome this, we add several reinforcements such as carbide and oxide groups, as well as ceramic strengthening particulates and biochar reinforcement. Micron-sized reinforcement is commonly utilized for several applications, thus improving the percentage of reinforcement to a maximum because it promotes higher hardness and toughness for machining characteristics. In this regard, we replace nano-sized strengthening particulates for such applications. We infer that the percentage of reinforcement of such ceramic particles cannot be increased due to particle agglomeration. Considering this as a major drawback, we illustrate a study on nano-sized reinforcement on Al7075 alloy with different processing methods in this investigation. We also carry out the modification of biochar. © 2024 Elsevier B.V., All rights reserved.