I-Alumina ceramic iwuhlobo lwe-alumina (Al2O3) njengento eyinhloko yobumba, esetshenziswa kumjikelezo ohlanganisiwe wefilimu.Ama-ceramics e-alumina ane-conductivity enhle, amandla emishini kanye nokumelana nokushisa okuphezulu.
I-alumina ceramics okwamanje ihlukaniswe yaba izinhlobo ezimbili: ukuhlanzeka okuphezulu nokujwayelekile.Ukuhlanzeka okuphezulu kwe-alumina ceramic kungaphezu kuka-99.9% i-Al2O3 yokuqukethwe kwezinto zobumba, ngenxa yokushisa kwayo okushisayo kuze kufike ku-1650-1990℃, ubude begagasi lokudlulisa obungu-1 ~ 6μm, ngokuvamile lwenziwa ngengilazi encibilikisiwe ukuze kuthathelwe indawo i-platinum crucible.Ngenxa yokudlulisa ukukhanya nokumelana nokugqwala kwensimbi ye-alkali, ingasetshenziswa njengeshubhu lesibani se-sodium, embonini ye-elekthronikhi ingasetshenziswa futhi njengebhodi lesifunda elididiyelwe kanye nezinto ezifakwayo eziphakeme kakhulu.
Ama-alumina ceramics ajwayelekile ahlukaniswe abe yi-porcelain engama-99, i-porcelain engama-95, i-porcelain engama-90, i-porcelain engama-85 nezinye izinhlobo ngokusho kokuqukethwe kwe-Al2O3, kwesinye isikhathi okuqukethwe kwe-Al2O3 ku-80% noma 75% nakho kubhekwa njengochungechunge olujwayelekile lwe-alumina ceramic.Phakathi kwazo, izinto zokwakha ze-alumina zobumba ezingu-99 zisetshenziselwa ukwenza izinga lokushisa eliphakeme le-crucible, ishubhu yesithando somlilo nezinto ezikhethekile ezingagugi, njengamabheringi e-ceramic, ama-ceramic seal nama-valve amanzi, njll. I-95 alumina ceramic material isetshenziswa kakhulu njenge-corrosion resistant, i-wear resistant. izingxenye;I-85 alumina ceramic material ivame ukuxutshwa nengxenye ye-talc, ithuthukise izakhiwo zikagesi namandla emishini, futhi ingavalwa nge-molybdenum, i-niobium, i-tantalum nezinye izinsimbi, ezinye zibuye zisetshenziswe njengamadivayisi kagesi wokuvala.
Isikhathi sokuthumela: Apr-28-2022