Aluminium oxide ke ntho e bopehileng joaloka molamu o mosoeu kapa o mokhubelu hanyane ka boholo ba 3.5-3.9g/cm3, sebaka se qhibilihang sa 2045, le ntlha e belang ea 2980 ℃. Ha e qhibilihe ka metsing empa e qhibiliha hanyane ka alkali kapa asiti. Ho na le mefuta e 'meli ea li-hydrates: monohydrate le trihydrate, e' ngoe le e 'ngoe e na le mefuta ea a le y. Ho futhumatsa li-hydrates ho 200-600 ℃ ho ka hlahisa alumina e kentsoeng ka libopeho tse fapaneng tsa kristale. Lits'ebetsong tse sebetsang, alumina ea mofuta oa Y e sebelisoa haholo. The hardness (Hr) ea alumina ke 2700-3000, Young's modulus 350-410 GPa, thermal conductivity ke 0.75-1.35 / (m * h. ℃), 'me linear katoloso coefficient ke 8.5X10-6 ℃ -1 (mocheso oa kamore -1000 ℃). High purity ultrafine alumina e na le melemo ea bohloeki bo phahameng, boholo ba likaroloana tse nyane, letsoalo le phahameng, matla a mocheso o phahameng, ho hanyetsa kutu, le ho sesa habonolo. High purity ultrafine alumina e na le litšoaneleho tse kang sebopeho se setle le se ts'oanang sa mokhatlo, sebopeho se ikhethileng sa moeli oa lijo-thollo, botsitso ba mocheso o phahameng, ts'ebetso e ntle ea ts'ebetso, ho hanyetsa mocheso, le bokhoni ba ho kopanya lisebelisoa tse fapaneng.
Tšebeliso ea alumina ea boleng bo phahameng
Bohloeki bo phahameng ba alumina bo na le litšobotsi tsa ho hanyetsa kutu, ho hanyetsa mocheso o phahameng, ho thatafala ho phahameng, matla a phahameng, ho hanyetsa ho roala, ho hanyetsa oxidation, le ho kenya letsoho hantle ka sebaka se seholo. E sebelisoa haholo masimong a theknoloji e phahameng joalo ka bioceramics, ceramics, catalysts chemicals, rare earth three color gene fluorescent powders, integrated circuit chips, aerospace light source devices, lisensor tse hlokomelang mongobo, le lisebelisoa tsa ho monya ha infrared.
Nako ea poso: Feb-01-2024