What materials are used in the iPhone 16's cooling system

1. Graphite: Graphite is used to conduct heat away from the chip to the chassis. This material is effective at enhancing thermal dissipation, allowing for better heat management within the device[1][2].

2. Aluminum: The chassis of the iPhone 16 is made from 100% recycled aluminum, which is bonded to the titanium frame using a solid-state diffusion process. This design facilitates efficient heat transfer from the internal components to the outer frame of the device[2].

3. Graphite-Clad Aluminum Substructure: The iPhone 16 Pro features a graphite-clad aluminum substructure that further improves heat conduction from the chips to the chassis, contributing to better overall thermal performance[2].

4. Potential Graphene: There are reports suggesting that Apple is exploring the use of graphene for future models, which would significantly enhance thermal conductivity compared to graphite. Graphene is known for its superior heat dissipation properties, potentially allowing for even better cooling performance[3][4][5].

Overall, the combination of these materials is aimed at reducing overheating issues and improving sustained performance during demanding tasks, such as gaming.