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 the bulk)?
On Fri, 8 Dec 2017 at 15:47, Edward Laitila <ealai...@mtu.edu> wrote: > 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 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 >> >> http://perso.univ-lemans.fr/~fgouten/Asymmetry >> >> Best Whishes, François Goutenoire >> >> -- >> ********************************************************************************************* >> Pr. Francois GOUTENOIRE >> e-mail: francois.gouteno...@univ-lemans.fr >> Tel: 02.43.83.33.54 >> FAX: 02.43.83.35.06 >> Département des Oxydes et Fluorures >> Institut des Molécules et des Matériaux du Mans >> IMMM - UMR CNRS 6283 >> Université du Maine - Avenue Olivier Messiaen >> F-72085 Le Mans Cedex 9 >> FRANCE >> ********************************************************************************************* >> Formation Rietveld CNRShttps://cnrsformation.cnrs.fr/stage.php?stage=18098 >> Formation SAXS et Réflectivités pour couches minces et matériaux >> nanostructurés. https://cnrsformation.cnrs.fr/stage.php?stage=18104 >> >> >> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >> Please do NOT attach files to the whole list <alan.he...@neutronoptics.com >> > >> Send commands to <lists...@ill.fr> eg: HELP as the subject with no body >> text >> The Rietveld_L list archive is on >> http://www.mail-archive.com/rietveld_l@ill.fr/ >> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >> >> >> > > > -- > Dr. Edward A. Laitila > Senior Research Engineer/Scientist II/Adjunct Assistant Professor > Michigan Technological University > Dept. of MSE > Room 628 M&M Building > (906) 369-2041 > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Please do NOT attach files to the whole list <alan.he...@neutronoptics.com > > > Send commands to <lists...@ill.fr> eg: HELP as the subject with no body > text > The Rietveld_L list archive is on > http://www.mail-archive.com/rietveld_l@ill.fr/ > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > -- Sent from Gmail Mobile
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Please do NOT attach files to the whole list <alan.he...@neutronoptics.com> Send commands to <lists...@ill.fr> eg: HELP as the subject with no body text The Rietveld_L list archive is on http://www.mail-archive.com/rietveld_l@ill.fr/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
