Re: Asymmetry peak shape difference between (pellet/powder)

Hi, Given the fact that the peaks are shifted between the powder and the pellet measurement, could it maybe be due to a height error of the pellet during the measurement? Best, Joachim. Am 8. Dezember 2017 20:48:35 MEZ schrieb Jon Wright : Hello, In the photo, the pellet is

Re: Asymmetry peak shape difference between (pellet/powder)

Hello, In the photo, the pellet is black and the powder is white. Why is that? Best Jon On December 8, 2017 3:35:20 PM GMT+01:00, "François Goutenoire" wrote: >Dear Rietveld users, > >We observe an unusual asymmetric peak shape on pellet and not when the

Re: Asymmetry peak shape difference between (pellet/powder)

Can the asymmetry of the peaks be attributed to difference in pressure between manually grinding and making a pellet? Maybe a study in function of pressure helps? If the pressure is constant, can it be due to a non-complete uniform formation of bigger grains (bigger on the surface and smaller in

Re: Asymmetry peak shape difference between (pellet/powder)

How was the Pellet made? Could be residual stresses on the surface. Cheers, Ed On Fri, Dec 8, 2017 at 9:35 AM, François Goutenoire < francois.gouteno...@univ-lemans.fr> wrote: > Dear Rietveld users, > > We observe an unusual asymmetric peak shape on pellet and not when the > sample has been

Asymmetry peak shape difference between (pellet/powder)

Dear Rietveld users, We observe an unusual asymmetric peak shape on pellet and not when the sample has been crushed in powder. This asymmetry is observed even at high 2theta angle. I would like to known if someone has an explanation ? I have put the data in the link here after