Hi,
Can any one tell me what is the minimum phase volume fraction that can
be detected by a laboratory X-ray diffractometer. In there any
reference for this.
I am using the new Empyrean from PANalytical.
Thanks
Apu
Department of Nuclear Engineering
NC State University
Raleigh, USA
++
I guess you are talking about detection limit only, not quantification limit,
right?
The answer largely depends on your material (scattering power, domain size),
tube (sampling volume) and counting time. I have seen cases where you can
clearly see something below 0.1 wt% and cases where already
Yes, I meant detection limit.
In my sample I have a second phase which dissolves at some
temperature. I tried to identify the dissolution temperature using
XRD. With increasing temperature the peak intensity for the second
phase decreased. After certain temperature the peak disappeared. I
understa
With the appropriate sample and high-resolution synchrotron powder diffraction
data, you can do even better than 0.1 wt%.
Here at the APS beamline 11-BM, we've managed to perform quantitative
refinements on a suspected very dilute ZrB2 impurity in the NIST SRM LaB6 660a
powder sample, at a lev
Hi Apu,
It is definitely case dependent. If you have a sample with a known (small)
quantity of the second phase, you can do a quantitative analysis and obtain the
phase fraction. Then, just diminish the phase fraction until you see the point
of disappearance. It disappears when the largest s
