Virtual crystallographic Calculators V.2

) ?   Thanks in advance Best regards   Nelson ++ Please do NOT attach files to the whole list Send commands to 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/ ++

XRD information R-Phase NiTi

2theta in Cobalt radiation and Irel.) of R phase (NiTi Alloy) ? Thanks in advance Best regards Nelson ++ Please do NOT attach files to the whole list Send commands to eg: HELP as the subject with no body text The Rietveld_L

Bias - Intensity correction Nist 1976b

necessary apply any additional bias (effect of radiation) to correct intensity values ? Thank you from advance Nelson ++ Please do NOT attach files to the whole list Send commands to eg: HELP as the subject with no body text The

XRD maraging steel

Dear rietvelds One question Is possible distinguish betwen ferrite and martensite (Fe-Ni) in maraging steel (powders, in this case) by xrd. Wich ICDD cards you use for austenite, ferrite and martensite ? I normaly use 06-0696 for ferrite and 33-0397 for austenite. In case of maragin

XRD graphene

Dear rietvelds We index graphene samples with ICDD card of graphite, correct ? Wich ICDD card of graphite are usualy used ? Thanks in advance Best rergards ++ Please do NOT attach files to the whole list Send commands to eg: HELP as

Quantification and rietveld refinement

don´t have experience of rietveld analysis. Thanks in advances Best regrds Nelson ++ Please do NOT attach files to the whole list Send commands to eg: HELP as the subject with no body text The Rietveld_L list archive is on http

transmission mode Vs reflection mode

Dear rietvelds There are diferences between analyse a farmaceutical compound (powder) in transmission mode or reflection mode (bragg brentano),mainly in fase analyse (vestigial phases for exemple) ? The transmission mode give us more information ? Thanks in advance Best regards

standard reference material XRD

Dear colleagues, Is There any standard reference material or similar (and where i can buy), to doping a power sample to control the position of xrd lines but with Peaks less than 10º. Thanks a lot. Nelson ++ Please do

crystallinity polymers by xrd

Dear Rietvels, I have some polymer samples, silicone elastomer, silicone gel (elastomer) and a copolymer. I have original samples and samples with 3 months in physiological saline solution. Can I see changes of crystallinity of this polymers in this two situation by xrd ? The decrease o

limitation sherrer formula

Dear Rietvelds The Scherrer formula is only applicable if the particle size is ~ 200 nm or less - it makes use of the line width due to the limited distance range ? This is true ? Wich paper are recomended to know why ? Best regards +++