Aluminiyamu Oxide: Katundu, Ntchito, ndi Kufunika

Aluminium oxide, yomwe imadziwikanso kuti aluminiyamu, ndi mankhwala omwe amapangidwa ndi aluminiyamu ndi okosijeni, omwe ali ndi njira yakuti Al₂O₃. Zinthu zosunthikazi ndi chinthu choyera, cha crystalline chomwe chimagwira ntchito yofunika kwambiri m'mafakitale osiyanasiyana chifukwa cha mawonekedwe ake apadera.

Chimodzi mwazinthu zofunika kwambiri za aluminium oxide ndi kuuma kwake kwapadera. Ili pa 9 pamlingo wa Mohs, ndikupangitsa kuti ikhale imodzi mwazinthu zovuta kwambiri zomwe zilipo. Kuuma kumeneku kumapangitsa kuti aluminiyamu oxide ikhale yonyezimira bwino, yomwe imagwiritsidwa ntchito popanga sandpaper, mawilo opera, ndi zida zodulira. Kukhazikika kwake kumatsimikizira kuti imatha kupirira ntchito zolimba, ndikupangitsa kuti ikhale chisankho chokondedwa pakupanga ndi zomangamanga.

Kuphatikiza pa kuuma kwake, aluminiyamu okusayidi amadziwikanso chifukwa cha mphamvu zake zotentha komanso zotetezera magetsi. Izi zimapangitsa kukhala chinthu chofunikira kwambiri pamakampani opanga zamagetsi, komwe amagwiritsidwa ntchito ngati insulator mu capacitors ndi zida zina zamagetsi. Kuphatikiza apo, malo ake osungunuka kwambiri (pafupifupi 2050 ° C kapena 3722 ° F) amalola kuti agwiritsidwe ntchito pakutentha kwambiri, monga zida zokanira m'ng'anjo ndi ng'anjo.

Aluminium oxide imagwiritsidwanso ntchito kwambiri popanga zitsulo zotayidwa kudzera mu njira ya Bayer, pomwe miyala ya bauxite imayengedwa kuti ichotse aluminiyamu. Izi ndizofunikira kwambiri pamakampani opanga aluminiyamu, chifukwa zimapereka zida zofunikira popanga zinthu zopepuka komanso zosachita dzimbiri za aluminiyamu.

Kuphatikiza apo, aluminiyamu oxide imagwira ntchito m'mafakitale a ceramic, pomwe imagwiritsidwa ntchito popanga zida zadothi zapamwamba zomwe zimagwiritsidwa ntchito paukadaulo wapamwamba kwambiri, kuphatikiza zida zakuthambo ndi zamoyo. Biocompatibility yake imapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito mu implants zamano ndi ma prosthetics.

Pomaliza, aluminiyamu okusayidi ndi gulu lazinthu zambiri lomwe limagwiritsidwa ntchito m'mafakitale osiyanasiyana. Makhalidwe ake apadera, kuphatikizapo kuuma, kukhazikika kwa kutentha, ndi kutsekemera kwa magetsi, zimapangitsa kuti zikhale zofunikira kwambiri pa zamakono zamakono ndi kupanga. Pamene mafakitale akupitirizabe kusintha, kufunikira kwa aluminium oxide kuyenera kukula, kulimbitsanso ntchito yake pazatsopano ndi chitukuko.