Zirconia toughened alumina, tseem hu ua ZTA yog ib yam khoom uas ua ke nrog alumina nrog zirconia. Qhov sib xyaw no belongs rau ib pawg ntawm ceramics hu ua AZ composites.
Cov yam ntxwv tseem ceeb ntawm ZTA
Zirconia toughened alumina sawv tawm vim, rau nws cov khoom. Nws pom kev siv hauv kev siv cov cuab yeej txiav thiab ntau yam kev kho mob. Lub zog siab, tawv, elasticity, hardness thiab hnav tsis kam ntawm AZ composites ua rau lawv zoo heev, rau cov ntawv thov no.
Mechanical Properties ntawm Zirconia Toughened Alumina
Tus nqi vaj tsev
Tshuaj Formula Zr-Al2O3
Qhov ntom 4.1-4.38 g/cm3
Hardness 1750-2100 Khawm
Elasticity 45-49 x 10^6 psi
Flexure zog 100-145 ksi ua
Pisces Ratio 0.26
Fracture Toughness 5-7 MPa m^1/2
Coefficient ntawm Thermal Expansion 8.0-8.1 x 10^ ib 6 1/C
Thermal conductivity 20.0-21.0 W/mK
Shock Resistance 325 °C
Ua haujlwm kub siab tshaj plaws 1650 °C
Nco tseg:Tag nrho cov khoom muaj nyob rau ntawm chav tsev kub.
Tus qauv ntawm ZTA
Zirconia toughened alumina (ZTA) paub txog nws lub zog piv rau cov ntshiab alumina. Lub zog no los ntawm kev hloov pauv ntawm zirconia nplej thaum lawv raug kev nyuaj siab.
Stress Induced Transformation Toughening
Lub zog ntawm ZTA nce, los ntawm tus txheej txheem hu ua kev nyuaj siab induced transformation toughening. Cov txheej txheem no tsim cov kab mob uas ua rau cov kab nrib pleb hauv cov qauv zirconium tso cai rau cov zirconium hais kom hloov cov theem thiab txav mus los ntawm cov alumina hais..
Lub Versatility ntawm ZTA
ZTA nthuav tawm ntau yam khoom ua rau nws muaj txiaj ntsig zoo hauv kev siv. Hauv kev lag luam nws pom kev siv los ua cov khoom siv rau kev sib koom ua ke hloov thiab kho lub hom phiaj.
ZTA hauv Kev Kho Mob Kev Lag Luam
ZTAs siab hnav tsis kam ua rau nws zoo tagnrho rau kev tsim cov kev cog qoob loo zoo. Nws lub zog tshwj xeeb thiab kev tiv thaiv corrosion ua rau nws tuaj yeem tiv taus cov khoom tsis muaj degradation ua rau nws tsim nyog rau kev siv cov kabmob load.
ZTA hauv Cov Cuab Yeej Txiav
Vim nws cov tawv tawv ZTA feem ntau ua haujlwm hauv cov cuab yeej txiav nrog rau cov ntaub ntawv ntawm alumina hauv cov ntawv txiav hlau.
ZTA hauv Cav Cheebtsam
cav Cheebtsam, labware cov khoom, industrial crucibles thiab refractory hlab tuaj yeem tsim tau siv ZTA.
ZTA hauv sandblasting
Zirconia toughened alumina, tseem hu ua ZTA tuaj yeem siv rau hauv daim ntawv thov, zoo li sandblasting.
Ib qho ntawm qhov zoo ntawm ZTA yog nws cov txiaj ntsig zoo. Nws ntog ntawm tus nqi ntau ntawm Alumina thiab Zirconium ua rau nws pheej yig dua piv rau cov ntaub ntawv.Zirconia toughened alumina muaj cov khoom uas ua rau nws tsim nyog rau kev siv.. Nws qhov kev txhim kho pob txha toughness ua rau nws zoo haum rau cov khoom uas ua rau muaj kev cuam tshuam kev thauj khoom.Lwm qhov zoo ntawm ZTA yog nws cov conductivity uas tso cai rau cov cua kub dissipation los ntawm kev sib txhuam.. Tsis tas li ntawd, cov txheej txheem sintering ua rau muaj qhov microstructure uas txhim khu kev ua haujlwm ntawm zirconia toughened alumina yog ib qho khoom siv zoo nrog cov khoom muaj txiaj ntsig rau ntau yam lag luam.. Nws lub zog thiab tawv ua ke nrog kev hnav zoo heev thiab thermal conductivity ua rau nws yog qhov kev xaiv zoo tshaj plaws hauv kev lag luam xws li kev kho mob mus rau kev tsim khoom..