Effects of Anodizing Conditions on Thermal Properties of Al 20XX Alloys for Aircraft

Anodizing was applied to improve the heat dissipation performance of aluminum (Al) alloys, by forming an oxide layer, such that they could be employed in aerospace applications. The methods were hard sulfuric acid (high hardness), soft (low boric-sulfuric mixed acid, tin-sulfuric and chromic solutions. Each process completed under optimized conditions. surface morphology observed using field emission scanning electron microscopy (FE-SEM) a digital camera. For determination thermal performance, Fourier transform infrared spectroscopy (FT-IR) used measure emissivity at 50 °C, laser flash analysis (LFA) utilized analyze diffusivity room temperature 300 °C. radiative property metals is often ignored because their low emissivity, however, this research, metal oxides found higher than bare series. This study improved properties oxidization Al via anodizing process.