Expanded graphite (EG) was added to lauric acid (LA)-stearic acid (SA) phase change materials to enhance their thermal conductivities. The PCMs were prepared in varying mass fractions of LA and SA, and 10 wt. % of EG was added. The phase change temperature and phase change enthalpy were determined by DSC, while the thermal conductivities, and thermal stabilities of the PCMs were determined by the transient plane source and thermogravimetric analysis, ...