Dear all,
I have a problem with the new version of Fullprof. I cannot obtain the
calculation of the bond distances and bond angles; at the end of the
refinement a FILE_1.dis is generated, ending with the sentence PROGRAM_STR
finished in error!, instead of the expected FILE.dis. Note that I
Dear Apu,
I know I will start up a good debate here, but size-strain analysis
with GSAS is a non-sense. The program was not written with that purpose
in mind and in fact it does not contains the instrumental aberration
part of the broadening that is necessary for such computation.
Indeed it is
Dear Prof. Lutterotti,
I was also aware of the fact that GSAS is not made for Size Strain analysis. I
got interested to use the Size strain refinement feature of GSAS only after
going through the article :
Size-strain line broadening analysis of the ceria round-robin sample by Prof.
D. Balzar
Dear all,
I think the statement that one cannot do line-profile analysis using GSAS is
too strong. In principle it is possible to do some
size strain analysis using GSAS, if the instrumental profile is e.g.
sufficiently described previously
by the Thompson-Cox-Hastings (TCH) profile function
Dear Apu,
difficult to say without seeing the pattern with your actual fitting.
Broadening with small domain size is normally more easy to fit. It
could be you didn't use the proper function or refines all necessary
parameters, or there is an anisotropic broadening or faulting.
Every
Hi,
I wrote an article [ that appeared in Dean Smith's book ] some time back
that describes how to use SRM 660a, LaB6, and the TCH function of GSAS for
characterization of the IPF, and then refine the only the microstructure
specific terms for an estimation of the size and strain in subsequent
hello everyone,
I was just curious to know that is there anyone who works on
xpertplus ?
do let me know asap
regards
vikrant
Hi Apu:
As everybody pointed out, there are better ways (for now) to do the
size/strain analysis, but GSAS can also be used if observed, size-broadened
and strain-broadened profiles can all be approximated with Voigt functions.
Paragraph 3.3 of the article that you mentioned explains how were
