Solid Solution Effects on the MgAl2O4-MgGa2O4 System
Abstract
This study focuses on the effect of solid solution on thermal diffusivity. a common refractory material, MgAl2O4, is investigated. Solid solution effects on thermal diffusivity in the MgO-Al2O3-Ga2O3 system are studied. Various additions of MgGa2O4 to MgAl2O4 were prepared and the laser flash technique was used to determine thermal diffusivity at temperatures between 200°C and 1300°C. It has been determined that solid solution in the MgAl2O4-MgGa2O4 system significantly decreases thermal conductivity up to 1000°C. at 200°C thermal conductivity decreased 25% with just 10 mol% addition of MgGa2O4 to the system. at 800°C the thermal conductivity decreased 10% with 10 mol% addition. Steady state calculations showed an 11% decrease in heat flux with 10 mol% MgGa2O4 considered across a 12 inch brick wall.
Recommended Citation
K. R. O'Hara et al., "Solid Solution Effects on the MgAl2O4-MgGa2O4 System," Proceedings UNITECR 2011 Congress: 12th Biennial Worldwide Conference on Refractories - Refractories-Technology to Sustain the Global Environment, pp. 420 - 423, Curran Associates, Inc., Dec 2011.
Department(s)
Materials Science and Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Curran Associates, Inc., All rights reserved.
Publication Date
01 Dec 2011
