Abstract
Our previous study found that the thermal conductivity of nonflammable Mg-Al-Ca alloys is improved by heat treatment. Heat-treated Mg-Al-Ca alloys exhibited a high thermal conductivity of 100–130 W m−1 K−1 because of C15 (Al2Ca) compound precipitation in the α-Mg phase. In this study, the optimal heat treatment condition and the effect of C15 precipitation behavior on thermal conductivity were investigated using Mg91.98Al5Ca3Mn0.02 alloys. The thermal conductivity saturated at approximately 120 W m−1 K−1 in the shortest time at a heat treatment temperature of 673 K. This suggests that the nucleation rate of the C15 compounds could reach the highest at 673 K. Through the formation of dense, long, and thick C15 compounds, thermal conductivity increased with decreasing Al concentration in the α-Mg matrix.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.