Precise Determination of the MgAlON/(AlN + MgAlON) Phase Bound rise in the MgO-Aln-Al_2O_3 Ternary System at 1600 deg C and 1700 deg C

摘要

The accurate phase boundary of MgAION/(AIN+MgAION) in MgO-AIN-Al_2O_3 ternary system, has not been determined precisely so far. In the present study, the lattice parameters of MgAION solid solution with various compositions were determined precisely with X-ray powder diffraction. According to the relationship between the lattice parameters of MgAION solid solution and the contents of AIN and MgO, the phase boundaries of MgAION/(AIN+MgAION) in MgO-AIN-Al_2O_3 ternary system at 1600 deg C and 1700 deg C were precisely determined.