Zirconia yog ib yam khoom uas muaj zog txhua yam thiab tawg toughness ntawm chav tsev kub. Peb zirconia (ZrO2) ntxiv nrog 3mol% Y2O3 ib nrab ruaj khov zirconia (PSZ). Vim hais tias cov particle txoj kab uas hla ntawm PSZ cov khoom yog me me, nws muaj peev xwm ua tiav nrog high precision, thiab nws daim ntawv thov nyob rau hauv precision machining qhov chaw xws li pwm yog expanding. Tsis tas li ntawd, kuj tuaj yeem siv rau kev lag luam cov cuab yeej, kho qhov muag connector qhov chaw thiab crushing khoom nruab nrab. Lub siab tawg toughness ntawm PSZ tuaj yeem siv los ua qhov tshwj xeeb tshwj xeeb, thiab nws kuj tau siv dav hauv cov riam hauv tsev, cov hlais thiab lwm yam.
Cov yam ntxwv tseem ceeb ntawm zirconia ceramic qhov chaw:
1. Zoo heev hnav tsis kam, ntau dua 276 zaug dua stainless hlau
2. Kev ceev ntau dua li cov txheej txheem ceramics, tshaj 6 g / cm3
3. High hardness, tshaj 1300 MPa rau Vicker
4. tuaj yeem tiv taus qhov kub thiab txias txog li 2400 °
5. Tsawg thermal conductivity, tsawg dua 3 W / mk ntawm chav tsev kub
6. Zoo sib xws coefficient ntawm thermal expansion li stainless hlau
7. Exceptional fracture toughness ncav cuag 8 Mpa m1/2
8. Tshuaj inertness, aging kuj, thiab tsis xeb mus ib txhis
9. Resistance rau molten hlau vim yog ib qho txawv tshaj plaw melting point.
Khoom Khoom
| Yam khoom | 95% Alumina | 99% Alumina | Zirconia | Silicon carbide | SiliconNitride | AluminiumNitride | Machinable ceramic |
| Xim | dawb | Lub teeb daj | dawb | dub | dub | grey | dawb |
| Qhov ceev (g / cm3) | 3.7g / cm3 | 3.9g / cm3 | 6.02 g / cm3 | 3.2g / cm3 | 3.25g / cm3 | 3.2g / cm3 | 2.48g / cm3 |
| Kev nqus dej | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Hardness (HV) | 23.7 ib | 23.7 ib | 16.5 ib | 33 | 20 | - | - |
| Flexural zog (MPa) | 300MPa | 400 MPa | 1100MPa | 450 MPa | 800MPa | 310 MPa | 91mpa ua |
| Compressive zog (MPa) | 2500MPa | 2800MPa | 3600MPa | 2000MPa | 2600 MPa | - | 340 MPa |
| Young's Modulus Of Elasticity | 300 GP ua | 300 GP ua | 320 GP ua | 450 GP ua | 290 gp ua | 310 ~ 350 GPa | 65gp ua |
| Poisson tus ratio | 0.23 | 0.23 | 0.25 | 0.14 ib | 0.24 ib | 0.24 ib | 0.29 ib |
| Thermal conductivity | 20 W / m ° C | 32 W / m ° C | 3 W / m ° C | 50 W / m ° C | 25 W / m ° C | 150 W / m ° C | 1.46 W / m ° C |
| Dielectric zog | 14KV / hli | 14KV / hli | 14KV / hli | 14KV / hli | 14KV / hli | 14KV / hli | 14KV / hli |
| Volume Resistivity (25 ℃) | > 1014Ω·cm | > 1014Ω·cm | > 1014Ω·cm | > 105Ω·cm | > 1014Ω·cm | > 1014Ω·cm | > 1014Ω·cm |
Zirconia (ZrO2) Kuv siv lub ntsiab
Pwm thiab pwm cov cuab yeej (ntau yam pwm, precision positioning fixture, rwb thaiv tsev fixture); Mill qhov chaw (classifier, cua ntws zeb, hlaws zeb); Cov cuab yeej muaj (kev lag luam cutter, slitter tshuab, tiaj tus xovxwm yob); Optical connector Cheebtsam (lub nplhaib sealing, lub tes tsho, V-groove fixture); Caij nplooj ntoos hlav tshwj xeeb (coil caij nplooj ntoos hlav, phaj caij nplooj ntoos hlav); Cov khoom siv (me me insulated screwdriver, ceramic riam, slicer).
