The content of amorphous phase in refractories was quantitatively analyzed by X-ray diffraction.The fireclay brick was analyzed by internal standard,and the silica brick was quantitatively analyzed by external standard.Through the comparison of the test results from Sinosteel Luoyang Institute of Refractories Research Co.,Ltd., Bruker (Beijing) and our laboratory,it is found that the amorphous phase content in fireclay brick and silica brick were satisfactory and achieve the expected goal.

"> Fireclay brick, Silica brick, Internal standard method, External standard method,  , Amorphous phase, Quantitative analysis, X-ray diffraction