I-Polycrystalline Al2O3 i-alumina ceramics elungiselelwe ukuxhathisa ubushushu obuphezulu

Polycrystalline Al2O3 alumina iiseramikhi elungiselelwe ubushushu obuphezulu ukumelana ukunxiba Featured Image

Inkcazelo emfutshane:

I-alumina ceramics (i-Al203) yimathiriyeli ye-ceramic engagugiyo echanekileyo esetyenziswa kakhulu kumashishini ahlukeneyo. Iindlela eziphambili zokubumba kwiimveliso ze-alumina ze-ceramic zicinezela ezomileyo, i-isostatic pressing, i-injection molding kunye ne-casting, njl. Iimilo zeemveliso ezahlukeneyo, ubukhulu kunye nokuchaneka kufuna iindlela ezahlukeneyo zokubumba. Emva kokushisa okuphezulu kwe-sintering yeemveliso ze-alumina ceramic, kuphela ukusetyenziswa kwenkqubo yokugaya idayimane kunokucutshungulwa. Ukucoceka kweekeramics eziqhelekileyo ze-alumina yi-90% -99.9%.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Ukusebenza kwe-aluminiyam oxide ceramics

1--Ubunzima obuphezulu

Ukuqina kwe-Rockwell yeeseramikhi ze-alumina yi-HRA80-90, okwesibini kuphela kwidayimani ebukhuni, ingaphezulu lee kunentsimbi enganyangekiyo kunye nokunganyangeki kokunxiba kwentsimbi.

2--Ukumelana neNdlela elungileyo

Ukumelana nokunxiba kweekeramics ze-alumina zilingana namaxesha angama-266 ensimbi ye-manganese kunye namaxesha angama-171.5 entsimbi ephezulu ye-chromium. Ngaphantsi kweemeko ezifanayo zokusebenza, inokwandisa ubomi benkonzo yezixhobo ubuncinane amaxesha alishumi.

3--Ubunzima obuKhanya

Ubuninzi beekeramics ze-alumina yi-3.7 ~ 3.95g / cm °, esisiqingatha kuphela sentsimbi kunye nentsimbi, kwaye inokunciphisa kakhulu umthwalo wezixhobo.

4--Uluhlu olubanzi lweSicelo

I-alumina ceramics isetyenziswa ngokubanzi koomatshini, i-fiber optics, izixhobo zokusika, unyango, ukutya, imichiza, i-aerospace kunye nezinye iindawo.

Izinto eziluncedo ze-alumina ceramics:

I-1--Ii-ceramics ze-alumina zineempawu ezintle zokugquma. Ilahleko yefrikhwensi ephezulu incinci ngokwentelekiso, kwaye ukugqunywa kwe-high-frequency kulungile.

I-2--i-alumina ceramics inokumelana nobushushu, i-coefficient encinci yokwandiswa kwe-thermal, amandla aphezulu omatshini kunye nokuhamba kakuhle kwe-thermal.

I-3--I-alumina ceramics inokumelana neekhemikhali kunye nokumelana nentsimbi etyhidiweyo.

I-4--I-alumina ceramics ayinakutsha, akulula ukugqwala kwaye yomelele kwaye akulula ukuyonakalisa, kunye nezinye izinto eziphilayo kunye nezixhobo zetsimbi azikwazi ukuthelekiswa nomgangatho obalaseleyo.

I-5--Alumina ceramics i-ceramics ephezulu yokumelana nokunxiba, ubunzima kunye ne-corundum efanayo, inokufikelela ubunzima be-Mohs 9, ukuxhathisa kwayo ukunxiba kunokudityaniswa kunye ne-alloys enzima kakhulu.