MODIFICATION OF CALCULATED REFERENCE INTENSITY RATIO FOR X-RAY QUANTI-TATIVE PHASE ANALYSIS

An improved method for the quantitative X-ray phase analysis is developed. The reference intensity ratio is first calculated theoretically, then modified by the analogue specimens with the true physical state and the testing conditions including microabsorption, preferred orientation, monochromator and automatic divergence slit. Thus, its accuracy can be much improved. Result of experiment showed that this modification is available for those samples which are hard to analyse by conventional method if their crystalline structure parameters associated with the phase are given. It may be also used to verify the accuracy of the reference intensity ratio measurement and to judge by what reason the error caused.