5Paladino A E. Phase Equilibriain the Ferrite Region of the SystemFeO-MgO-Fe2 03 [ J ]. Journal of American Ceramic Society, 1960,43 (4) :183- 191.
6Atlas L M, Sumida W K. Solidus, Subsolidus and Subdissociation Phase Equilibria in System Fe-AI-O[ J]. J. Am. Ceram. Soc. , 1958,41:150- 160.
7Verwaye J W E, Heilmanm L. Physical Properties and Cation Arrangement of Oxides with Spinel Structures : I, Cation Arrangement in Spinels [J].J. Chem. Phys. ,1947,15(4):174-180.