I-X-Ray Diffraction
Imele iiploti zemfumba yedatha ye-Xray diffraction kwiisampuli ezicocekileyo nezithotyiweyo zeMetal (ekhohlo) kunye neCeramic (Ekunene).
Iziko le-ceramic post cartridges, njengoko kuqikelelwe ngababhali, zahlala zihambelana ngokubhekiselele kwimichiza yeekhemikhali (akukho phawu lokubola okanye utshintsho lweekhemikhali kwi-300 ° C kunye ne-600 ° C).Ngokuchasene noko isampuli yensimbi ifumana utshintsho olucacileyo lokubumba.
Njengoko kunokubonwa ngedatha ye-XRD, iisampuli ze-ceramic zibonisa ukunyaniseka kwesakhiwo sokubunjwa okuhambelanayo.Oku kubonisa ukuba akukho tshintsho kwisakhiwo sekristale njengoko ukuqina kunye neendawo eziphakamileyo zeendiza eziphazamisayo zihlala zifana.Sisebenzisa i-rietveld refinement, sibona kwipatheni yethu ye-XRD isigaba esibalaseleyo se-tetragonal esibalelwa kwinqwelomoya (101).
Idatha ye-XRD ikwabonisa ukuba kukho isakhiwo esincinci se-monoclinic esiqala ukuvela kwisampuli ye-600 °C ngenxa ye-(111) indiza kwi-angle ephantsi ye-2θ.Ekubaleni i-mol% ukusuka kubunzima obunikiweyo% (idatha ehlanganisiweyo enikezwe yi-Wonder Garden), kwagqitywa ukuba isampuli yeZirconia yi-3 mol% Yttria doped Zirconia.Xa uthelekisa iphethini ye-XRD kwidayagram yesigaba sifumanisa ukuba idatha eqokelelwe kwi-XRD ihambelana nezigaba ezikhoyo kwidayagram yesigaba.Isiphumo esivela kwidatha yethu ye-XRD ibonisa ukuba i-Zirconia yinto ezinzileyo kwaye engasebenziyo kule mimandla yokushisa.
Witz Et al:Phase Evolution in Yttria-Stabilized Zirconia Thermal Barrier Coatings ifundwe nguRietveld Refinement yeX-Ray Powder Diffraction Patterns.Journal of the American Ceramic Society.
■Itheyibhile 1 - Ukuqulunqwa kwePosti yeCeramic Centre
Ukusuka kwidatha ye-XRD, kuye kwafunyaniswa ukuba izinto zetsimbi yiBrass.Kwizicelo zobushushu obuphezulu, inokuba lukhetho oluqhelekileyo kodwa njengoko kufunyenwe, ukuthotywa kwenzeka ngokukhawuleza okukhulu xa kuthelekiswa neziko le-ceramic.Njengoko kunokubonwa kwisakhiwo kwi-600 ° C (isakhiwo sokuqala kwicala lasekhohlo), izinto eziphathekayo zitshintsha kakhulu.Kwi-engile ephantsi 2θ, sikholelwa ukuba iincopho ezintsha zibalelwa kukwenziwa kwe-ZnO (Zinc Oxide).Kwi-300 ° C kwisampulu yobhedu (isakhiwo se-XRD sasekhohlo) sibona ukuba akukho tshintsho oluninzi lwenzeke xa kuthelekiswa nesampuli ecocekileyo.Isampulu yahlala ikwimo elungileyo yomzimba kunye neekhemikhali, iboleka ukuzinza kwemathiriyeli ukusuka kubushushu begumbi ukuya kuma-300 °C.
