Aluminium oxide ndi chinthu choyera kapena chofiira pang'ono chooneka ngati ndodo chokhala ndi kachulukidwe ka 3.5-3.9g/cm3, malo osungunuka a 2045, ndi kuwira kwa 2980 ℃. Sisungunuka m'madzi koma imasungunuka pang'ono mu alkali kapena asidi. Pali mitundu iwiri ya ma hydrates: monohydrate ndi trihydrate, iliyonse ili ndi mitundu ya a ndi y. Kutenthetsa ma hydrates pa 200-600 ℃ kumatha kupanga alumina yolumikizidwa ndi mawonekedwe osiyanasiyana a kristalo. Muzochita zenizeni, aluminiyamu ya Y-mtundu imagwiritsidwa ntchito makamaka. Kuuma (Hr) kwa alumina ndi 2700-3000, modulus ya Young ndi 350-410 GPa, kutentha kwa matenthedwe ndi 0.75-1.35 / (m * h. ℃), ndi kukula kwa mzere ndi 8.5X10-6 ℃ -1. (kutentha kwa chipinda -1000 ℃). High purity ultrafine alumina ili ndi ubwino wa kuyera kwakukulu, kukula kwa tinthu kakang'ono, kachulukidwe kwambiri, mphamvu ya kutentha kwambiri, kukana kwa dzimbiri, komanso kutsekemera kosavuta. High purity ultrafine alumina ali ndi makhalidwe monga dongosolo labwino ndi yunifolomu, kapangidwe ka malire a tirigu, kukhazikika kwa kutentha kwapamwamba, ntchito yabwino yokonzekera, kukana kutentha, komanso kuthekera kophatikiza ndi zipangizo zosiyanasiyana.
Kugwiritsa ntchito aluminiyamu yapamwamba kwambiri
High purity alumina ali ndi mawonekedwe okana dzimbiri, kukana kutentha kwambiri, kulimba kwambiri, kulimba kwambiri, kukana kuvala, kukana makutidwe ndi okosijeni, komanso kutchinjiriza bwino komwe kuli ndi malo akulu. Amagwiritsidwa ntchito kwambiri m'magawo apamwamba kwambiri monga bioceramics, ceramics fine, catalysts chemical, rare earth three color color gene fulorescent powders, Integrated circuit chips, Aerospace light source devices, humidity sensitive sensors, ndi mayamwidwe a infrared.
Nthawi yotumiza: Feb-01-2024