Zirconia Ceramics Experimental

Wonder Garden Zirconia ceramic centre-post cartridges thiab cov neeg sib tw ua tus thawj coj ntawm cov hlau nruab nrab-cov ntawv cartridges tau muab los ntawm Wonder Garden rau kev tshawb nrhiav.Txhawm rau kawm txog kev ua haujlwm ntev thiab thermal degradation ntawm cov qauv, Aliovalent Material Research siv pycnometry, x-ray diffraction, scanning electron microscopy thiab zog dispersive spectroscopy ntawm cov qauv sib txawv ntawm pristine mus rau degraded (300 ° C thiab 600 ° C). Cov qauv tau muab faib los ntawm qhov ntev uas siv lub tshuab hluav taws xob qis qis qis (Allied HighTech, US) ntawm 200 rpm los xyuas kom meej qhov zoo tshaj plaws hla ntu tiav.Tom qab ntawd cov qauv raug ntxuav hauv dej deionized hauv ultrasonic nqus tsev vacuum, ces yaug nrog isopropanol thiab DIW rau lub sijhawm kawg.Cov qauv tom qab ntawd muab tso rau hauv 2 lub qhov cub tawg thiab khaws cia ntawm 300 ℃ thiab 600 ℃ hauv huab cua (~ Nitrogen 78%, Oxygen 21%, lwm tus 1%).

Qhov kev khiav hauj lwm kub ntawm cov cuab yeej no feem ntau yog nyob ntawm 250 ° C mus rau 350 ° C, nrog rau qhov siab tshaj plaws ua haujlwm kub ntawm 450 ° C txog 500 ° C.Yog li ntawd, txiav txim siab txog kev nyab xeeb ntawm 1.2, qhov no ua rau kev soj ntsuam ntawm cov khoom ntawm 600 ° C.Cov txheej txheem ua cim tau ua rau ntawm pristine, 300 ° C thiab 600 ° C rau cov ceramic thiab hlau chaw-posts.

Qhov ceev tau ntsuas siv txoj kev gravimetric buoyancy.X-ray diffraction (XRD) qauv tau txais.Crystal domain loj tau kwv yees siv Scherrer kab zauv los ntawm XRD diffraction peaks siv qhov dav dav ntawm ib nrab siab tshaj plaws (FWHM) ntawm (111) peaks.Hla-sectional scanning electron microscopy (SEM) tau ua ntawm lub tshuab nqus tsev siab kom tau txais cov duab microstructure siab tshaj plaws.Energy-Dispersive Spectroscopy (SEM/EDS) tau ua rau kev tsom xam ntawm cov qauv los tshawb xyuas yog tias muaj kev hloov pauv ntxiv tshwm sim ntawm qhov kub thiab txias.