Iipropati zeZirconia Ceramics

I-Zirconia ceramics (i-ZrO2), enezinga eliphezulu lokunyibilika, ubunzima obuphezulu, ukuxhathisa okugqwesileyo, njenge-insulator kwiqondo lokushisa eliqhelekileyo, kwaye kwiqondo lokushisa eliphezulu linempahla yokuqhuba. I-ZrO2 ecocekileyo imhlophe, ityheli okanye ingwevu xa iqulethe ukungcola, kwaye ngokubanzi iqulethe i-HfO2, ekungekho lula ukuyohlula. I-Zirconia idla ngokuhlanjululwa kwi-ore ye-zirconium.

I-Zirconia ineentlobo ezintathu zeekristale: i-crystal monoclinic (m-ZrO2), i-medium-tetragonal crystal (t-ZrO2), i-high-temperature cubic crystal (c-ZrO2), iikristale ezintathu zingentla zikhona kwiindidi ezahlukeneyo zokushisa, kwaye inokuguqulwa omnye komnye.

I-Zirconia ceramics luhlobo olutsha lweekeramics ezikumgangatho ophezulu, ukongeza kumandla aphezulu, ukuqina, ukumelana nobushushu obuphezulu, i-asidi kunye ne-alkali yokumelana nokugqwala kunye nokuzinza okuphezulu kweekhemikhali, kwangaxeshanye kunye nokumelana nokuqala, akukho khuselo lomqondiso, ukusebenza kakuhle kokutshabalalisa ubushushu. , ngelixa i-machinability, isiphumo esihle sokubonakala, esifanelekileyo kwimveliso yobuninzi.

1. Indawo ephezulu yokunyibilika

Indawo yokunyibilika ye-zirconia yi-2715 ℃, kwaye indawo ephezulu yokunyibilika kunye nokungangeni kweekhemikhali kwenza i-zirconia ibe yinto efanelekileyo yokuchasa.

2. ubunzima obuphezulu, ukumelana nokunxiba kakuhle

I-Zirconia ceramics inobunzima obuphezulu kunye nokumelana nokunxiba okungcono. Ukusuka kwidatha ethile, ubunzima be-Mohs be-zirconia ceramics bumalunga ne-8.5, esondele kakhulu kubulukhuni be-Mohs besafire 9.

3. amandla kunye nokuqina bukhulu kakhulu

I-Zirconia ceramics inamandla aphezulu (ukuya kuthi ga kwi-1500MPa).

4. i-conductivity ephantsi ye-thermal, i-coefficient yokwandisa okuphantsi

I-thermal conductivity ye-zirconia iyona nto iphantsi kwizinto eziqhelekileyo ze-ceramic (1.6-2.03W / (mk)), kwaye i-coefficient yokwandiswa kwe-thermal isondele kwintsimbi. Ngoko ke, i-zirconias ceramics ifanelekile kwi-ceramics yesakhiwo se-ceramics.

5. ukusebenza kakuhle kombane

I-dielectric constant ye-zirconia ngamaxesha angama-3 esafire, isignali iyancipha ngakumbi, kwaye ifaneleke ngakumbi kwiipatches zokuqaphela iminwe. Ngokusekelwe kwimbono yokukhusela ukusebenza kakuhle, i-zirconias ceramics, njengezinto ezingezona zetsimbi, azikho impembelelo yokukhusela kwizibonakaliso ze-electromagnetic, kwaye ayiyi kuchaphazela ukwakheka kwe-antenna yangaphakathi, enokuthi idibaniswe ngokulula kwaye ihambelane nexesha le-5G.