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Maud2.0定量教程宋党育整理河南理工大学2007-6Email:dangyusong@gmail.comTel:0391-3987976QQ:48096753IntroductionHerearetheinstructionstoperformaRietveldquantitativeanalysisonaZrO2/Al2O3powdersampleusingMaud.Version2.03(releasedSeptember12,2005)orhigherisneededforthistutorial.ThespectrumfortheanalysishasbeencollectedusingastandardBragg-BrentanodiffractometerandthedatafileislocatedinthedatasetsandexamplesdirectoryofMaud(theonecreatedbyyouatthefirstrunoftheprogram).Theprocedurewillstartcreatingabasicanalysisfilesettingupthedatafileandthetwophasestoanalyze.Wewillbuildthisanalysisfileintwosteps:1)Step1:loadthedatafile2)Step2:loadandmodifythephasesOncedefinedtheanalysisfile,wewillstarttheanalysisfollowingtwosteps:3)Step3:setupsome"visible"parameters(specifically,theT-PSZcellparameters)4)Step4:refinethespectrumbythewizardThefinalstep(Step5)willshowtheanalysisoutputtotheuser.Thetutorialwillalsoguidetheusertoamoreaccurateandpreciseanalysisifsomeparameterswerenotasexpected.Thetutorialhasbeenaddedbyseveralfigurestohelpthenoviceinfiguringouteasilythebasicproceduretoperformthiskindofanalysis.Step1:loadthedatafile1)StarttheMaudprogramor,ifyouarealreadyin,choose"New"fromthe"File"menutostartanewanalysisandresetall.2)Loadthedatafilealzrc.datfromthe"Mauddatabasesandexamplesdirectory"(theoneMaudaskedforthefirsttimeyourunit).3)Therearethreewaystodoit.Chooseonlyone.a)LocatethefileinyoursystemanddraganddropthefileovertheplotwindowoftheprincipalMaudframe.Whenyouareoverwiththefileyoushouldnoticetheplotpanelborderishighlighted.b)IntheFilemenuchooseLoaddatafile...,navigatetothefilealzrc.datandloadit(Fig1-1).c)(Thisthirdoneistheusualwhenworkingwithmoredatasetsanddatafiles,togetmorecontrolwheretoaddandhowmanydatafilesforeachdatasettohave)SelecttheDataset_xwiththemouseandpresstoolbarbuttonsimilartoaneye(itsaysedittheselectedobjectofthevisiblelistwhenyougowiththemouseoverit).Anewwindowwillappear,selecttheDatafilestabpanelandpresstheBrowse..buttont
