Silicon Oxide Powder

(Silicon Oxide Powder)

Silika ndi mchere wofunikira womwe umapezeka mwachilengedwe padziko lapansi, zomera, ndi matupi athu. Amadziwika kuti amalimbikitsa kupanga mafupa, kuteteza mano, ndikuthandizira kupanga collagen.

silicon oxide ufa wakhala akugwiritsidwa ntchito zosiyanasiyana ntchito kuphatikizapo semiconductors, ulusi, magalasi, zoumba, ndi zina. Ili ndi ma dielectric okhazikika, kukana kwamakina, komanso kusankha kwamankhwala kumapangitsa kuti ikhale chinthu chabwino kwambiri chogwiritsidwa ntchito mu ma microelectronics ndi chromatography.

Njira yopangira ufa wa silicon oxide wokhala ndi malo enieni a BET pamtunda wa 5 mpaka 300 m2/g imaperekedwa. Njirayi imakhala ndi sitepe yoyika momwe ufa wosakaniza wokhala ndi silicon oxide ufa umayikidwa pagawo laling'ono potenthetsa particles zomwe zayikidwa.

Kenaka ufa woyikidwa umakhazikika kutentha pakati pa 200 ndi 400 deg C. Izi zimabwerezedwa kwa otsala a ufa woyikidwa.

Zida zogwiritsira ntchito njira yopangira silicon oxide ufa zimaperekedwa. Chida ichi nthawi zambiri chimayikidwa pa 1 ndipo chimaphatikizapo ng'anjo 10 ndi chipinda chosungiramo 20 cholumikizidwa ndi ngalande yosinthira 30 yokhala ndi muffle 11 yotayidwa mmenemo.

Pali mitundu ingapo ya amorphous ndi crystalline ya silicon dioxide yomwe ilipo, yomwe imatha kupangidwa pogwiritsa ntchito njira za LPCVD ndi PECVD. Amorphous silicon dioxide imadziwika ndi kulumikizana kwa tetrahedral kwa ma atomu ake onse mpaka maatomu anayi okosijeni.

Mtundu wa crystalline wa silica nthawi zambiri umadziwika ndi malamulo omangika awiri, momwe atomu iliyonse ya molekyulu imamangiriridwa molumikizana ndi maatomu awiri oyandikana ndi okosijeni. Kapangidwe ka tetrahedral kameneka kamasiyanitsa crystalline silicon dioxide ndi carbon dioxide, yomwe imakhala yozungulira kwambiri.

(Silicon Oxide Powder)