【求助】XRD半定量的问题

XRD测试结果肯定与试样大小有关的，一般XRD样品在5微米左右。制样当然应该首先把样品磨得足够细，另外在载样品玻片上不要老是往一个方向划，容易引起取向，够熟练的话一般划一两遍就可以了，要么就用压的方法.

可以做的。没有问题。利用RIR法，求出质量比，然后转化为莫尔比就行！

Could you explain the RIR method in detailed.
Thanks

You can get the RIR value from the PDF cards or doing tests by yourself. And then you can compare the differrent phase's characteristc peak's intensity and get their wt% in the samples from a foemula (you can get it from any books on X-ray diffraction).

Do you mean RIRs(=relative intensity ratio???) of two different cards can be compared ? Or, we can prepare the standard samples with various relative compositions. Then we measure the samples by XRD. By comparing the relative intensities of the main peaks of the two phases, the phase content can obtain from the standard line.