<div dir="auto">Dear everyone. <div dir="auto">I used GSAS-II to estimate crystallite size from lab PXRD. The sample was annealed anatase.</div><div dir="auto">Before annealing all results (GSAS-II, Debye function analysis (DFA), GSAS and HRTEM) were the same, about 5nm.</div><div dir="auto">After annealing GSAS-II gave 19/21(0.3) nm, while DFA gave 14(5) nm and HRTEM gave 12(3).</div><div dir="auto">Does anyone got the same , what seem to be, over estimation by GSAS-II?</div><div dir="auto">Of course, using standard deviation give not so far results.</div><div dir="auto">Best regards,Victor</div></div><br><div class="gmail_quote"><div dir="ltr">בתאריך יום ה׳, 23 באוג׳ 2018, 20:00, מאת <<a href="mailto:gsas-ii-request@aps.anl.gov">gsas-ii-request@aps.anl.gov</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send GSAS-II mailing list submissions to<br>
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Today's Topics:<br>
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1. Help with refining instrumental parameters (Emily Siska)<br>
2. Re: Help with refining instrumental parameters (Sergey Ushakov)<br>
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Message: 1<br>
Date: Wed, 22 Aug 2018 10:58:38 -0700<br>
From: Emily Siska <<a href="mailto:siskae@unlv.nevada.edu" target="_blank" rel="noreferrer">siskae@unlv.nevada.edu</a>><br>
To: <a href="mailto:gsas-ii@aps.anl.gov" target="_blank" rel="noreferrer">gsas-ii@aps.anl.gov</a><br>
Subject: [GSAS-II] Help with refining instrumental parameters<br>
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<br>
In GSAS I when there was more than one phase you could refine GU GV, GW<br>
and LX, LY for each<br>
phase separately. Is that possible in GSAS II? If so how?<br>
<br>
Sorry if you have received this message multiple times - I have been having<br>
trouble with the server.<br>
<br>
<br>
Thank you for your help!<br>
<br>
Best Regards,<br>
Emily Siska<br>
<br>
<br>
-- <br>
Emily Siska<br>
<br>
Chemistry Graduate Assistant<br>
Chemistry/HiPSEC<br>
<br>
Science and Engineering Building, Room 2173<br>
University of Nevada, Las Vegas<br>
4505 S. Maryland Pkwy.<br>
Las Vegas, NV 89154-4003<br>
Office: (702) 894-1478<br>
Cell: (818) 642-7718<br>
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Message: 2<br>
Date: Wed, 22 Aug 2018 11:16:49 -0700<br>
From: Sergey Ushakov <<a href="mailto:svushakov@ucdavis.edu" target="_blank" rel="noreferrer">svushakov@ucdavis.edu</a>><br>
To: <a href="mailto:gsas-ii@aps.anl.gov" target="_blank" rel="noreferrer">gsas-ii@aps.anl.gov</a><br>
Subject: Re: [GSAS-II] Help with refining instrumental parameters<br>
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<br>
In GSAS-2 you refine size and strain for each phase instead. It makes sense<br>
since instrument parameters do not vary with phase!<br>
<br>
On Wed, Aug 22, 2018 at 10:58 AM, Emily Siska <<a href="mailto:siskae@unlv.nevada.edu" target="_blank" rel="noreferrer">siskae@unlv.nevada.edu</a>><br>
wrote:<br>
<br>
> In GSAS I when there was more than one phase you could refine GU GV, GW<br>
> and LX, LY for each<br>
> phase separately. Is that possible in GSAS II? If so how?<br>
><br>
> Sorry if you have received this message multiple times - I have been<br>
> having trouble with the server.<br>
><br>
><br>
> Thank you for your help!<br>
><br>
> Best Regards,<br>
> Emily Siska<br>
><br>
><br>
> --<br>
> Emily Siska<br>
><br>
> Chemistry Graduate Assistant<br>
> Chemistry/HiPSEC<br>
><br>
> Science and Engineering Building, Room 2173<br>
> University of Nevada, Las Vegas<br>
> 4505 S. Maryland Pkwy.<br>
> Las Vegas, NV 89154-4003<br>
> Office: (702) 894-1478<br>
> Cell: (818) 642-7718<br>
><br>
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><br>
<br>
<br>
<br>
-- <br>
--<br>
Sergey Ushakov PhD<br>
<br>
Staff Research Associate<br>
<br>
Peter A Rock Thermochemistry Laboratory and NEAT ORU<br>
Rm 4415, Chemistry Annex<br>
University of California, Davis<br>
Davis, CA 95616<br>
phone (530) 902-8185<br>
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End of GSAS-II Digest, Vol 174, Issue 1<br>
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</blockquote></div>