Solid Solution Effects on the Thermal Properties in theMgAl2O4–MgGa2O4System

• DOI: 10.1111/jace.12125
• Publication Date: 2012-12-24T09:30:09Z
• Authors: K. R. Wilkerson; J. D. Smith; T. P. Sander; J. G. Hemrick
• Keywords: Laser flash analysis

Solid solution effects on thermal conductivity within the MgO – Al 2 O 3 Ga system were studied. Samples with systematically varied additions of MgGa 4 MgAl prepared and laser flash technique was used to determine diffusivity at temperatures between 200°C 1300°C. Heat capacity as a function temperature from room 800°C also determined using differential scanning calorimetry ( DSC ). in decreases up 1000°C. At decreased 24% 5 mol% addition system. 1000°C, 13% addition. Steady‐state calculations showed 12.5% decrease heat flux considered across 12 inch thickness.