X ray diffration K value’s method was applied to the phase quantitative analysis of Y 2O 2S∶Eu 3+ phosphors synthesized by microwave irradiation method

using α Al 2O 3 as the reference phase. The experimental result shows that this method’s maximum relative deviation is about 2 4% and which has many advantages such as quickness

simplicity and practicality

is of great value to choose the optimal control parameters for microwave synthesis technique and to study the process of microwave synthestic chemistry.