Zirconia zolimba alumina, amadziwikanso kuti ZTA ndi zinthu zomwe zimaphatikiza alumina ndi zirconia. Chophatikizika ichi ndi cha gulu lazoumba lotchedwa AZ composites.
Zochititsa chidwi za ZTA
Zirconia toughened alumina imawonekera chifukwa, ku katundu wake. Amapeza ntchito ntchito kudula zida ndi madera osiyanasiyana azachipatala. Mphamvu zazikulu, kulimba, elasticity, kuuma komanso kukana kuvala kwa ma composites a AZ kumawapangitsa kukhala oyenera kwambiri, za mapulogalamu awa.
Ma Mechanical Properties a Zirconia Toughened Alumina
Mtengo wa Katundu
Chemical Formula Zr-Al2O3
Kuchulukana 4.1-4.38 g/cm3
Kuuma 1750-2100 Batani
Kusangalala 45-49 x 10^6 psi
Flexure Mphamvu 100-145 ksi
Pisces Ration 0.26
Kulimba kwa Fracture 5-7 MPa m^1/2
Coefficient of Thermal Expansion 8.0-8.1 x 10 pa 6 1/C
Thermal Conductivity 20.0-21.0 W/mK
Shock Resistance 325 °C
Maximum Ntchito Kutentha 1650 °C
Zindikirani:katundu onse amaperekedwa kutentha firiji.
Kapangidwe ka ZTA
Zirconia zolimba alumina (ZTA) amadziwika chifukwa cha mphamvu zake poyerekeza ndi alumina woyera. Mphamvu iyi imachokera ku kusinthika kwa njere za zirconia pamene akuvutika maganizo.
Stress Indused Transformation Toughening
Mphamvu ya ZTA ikuwonjezeka, kudzera munjira yotchedwa stress induced transformation toughening. Izi zimapanga zovuta zomwe zimayambitsa ming'alu ya zirconium zomwe zimalola kuti zirconium particles zisinthe magawo ndikuyenda momasuka pakati pa alumina particles..
Kusintha kwa mtengo wa ZTA
ZTA imawonetsa zinthu zingapo zomwe zimapangitsa kuti ikhale yofunikira pakugwiritsa ntchito. M'makampani amapeza kugwiritsidwa ntchito ngati chinthu chothandizira kusinthana ndi kukonzanso.
ZTA mu Medical Viwanda
ZTAs high wear resistance imapangitsa kuti ikhale yabwino popanga ma implants apamwamba kwambiri. Mphamvu zake zapadera komanso kukana kwa dzimbiri zimathandizira kupirira katundu popanda kuwonongeka ndikupangitsa kuti ikhale yoyenera kunyamula katundu..
ZTA mu Zida Zodula
Chifukwa cha kulimba kwake ZTA imagwiritsidwa ntchito podula zida pamodzi ndi mitundu ya aluminiyamu pakudula zitsulo..
ZTA mu Engine Components
injini zigawo, zinthu za labware, crucibles mafakitale ndi refractory machubu akhoza kupanga ntchito ZTA.
ZTA mu sandblasting
Zirconia zolimba alumina, amadziwikanso kuti ZTA angagwiritsidwe ntchito ntchito, ngati sandblasting.
Chimodzi mwazabwino za ZTA ndi mtengo wake. Zimagwera pakati pa mtengo wa Alumina ndi Zirconium zomwe zimapangitsa kuti zikhale zotsika mtengo poyerekeza ndi zipangizo.Zirconia toughened alumina ali ndi katundu zomwe zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito.. Ubwino wina wa ZTA ndi mawonekedwe ake omwe amalola kuti kutentha kumatenthedwe chifukwa cha kukangana.. Kuphatikiza apo, sintering imabweretsa kachipangizo kakang'ono kamene kamathandizira kavalidwe.. Mphamvu zake ndi kulimba kwake kuphatikiza ndi kukana kwabwino kwa kuvala komanso kuwongolera kwamafuta kumapangitsa kuti ikhale chisankho chabwino m'magawo kuyambira zamankhwala mpaka kupanga..