Fabrication of Aluminum Alloy Composite Reinforced with Carbonized Biocoke by Casting Process and Its Thermal Expansion Properties
Year: 2026
Type: article
Abstract: As the issue of global warming becomes increasingly serious, we strive to transition the energy infrastructure toward renewable energy sources.In particular, technological development targeted at reducing CO 2 emissions through biomass has attracted significant attention, and the development of various solid biofuels is progressing.Biocoke (BIC), developed at Kindai University, is intended to achieve direct CO 2 reductions in the steel industry, and research is underway into its various properties as an alternative fuel to coal coke.On the other hand, there is little research on its use as an industrial material.The carbonized BIC would have a potential as a sustainable alternative to conventional reinforcing materials, such as carbon fibers, for metal matrix composites.Thus, this study investigated the potential of BIC as a reinforcing material of the aluminum alloy matrix composites that reduces the environmental impact.The composites were fabricated by squeeze casting, that the aluminum alloy melt was infiltrated with the carbonized rice husk BIC.Microstructure and thermal expansion properties of the composites were investigated, comparing them with those of the unreinforced aluminum alloy and PAN-based carbon fiber-reinforced aluminum alloy composites.The carbonized BIC-reinforced aluminum alloy composite indicated a lower average coefficient of thermal expansion (CTE) than the aluminum alloy in both the parallel and vertical to the melt infiltration directions.Moreover, compared with PAN-based carbon fiber composites, it demonstrated superior thermal stability along certain directions.Therefore, carbonized BIC has a potential as a reinforcing material replaced with carbon fiber.
Source: Journal of Smart Processing
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7214614541