Galasi ndi amorphous inorganic non-metallic material, yomwe nthawi zambiri imapangidwa ndi mitundu yosiyanasiyana ya mchere (monga mchenga wa quartz, borax, boric acid, barite, barium carbonate, laimu, feldspar, phulusa la soda, etc.) ndi zochepa zowonjezera zowonjezera zowonjezera zimawonjezeredwa.za.
Zigawo zake zazikulu ndi silicon dioxide ndi ma oxides ena.[1] Mankhwala opangidwa ndi galasi wamba ndi Na2SiO3, CaSiO3, SiO2 kapena Na2O·CaO · 6SiO2, ndi zina zotero.
Amagwiritsidwa ntchito kwambiri m'nyumba zolekanitsa mphepo ndi kufalitsa kuwala.Ndi chosakaniza.Palinso magalasi achikuda omwe amasakanizidwa ndi ma oxides achitsulo kapena mchere kuti awonetse mtundu, komanso magalasi otenthetsera opangidwa ndi njira zakuthupi kapena zamankhwala.Nthawi zina mapulasitiki owonekera (monga polymethyl methacrylate) amatchedwanso plexiglass.
Kwa zaka mazana ambiri, anthu akhala akukhulupirira kuti galasi ndi lobiriwira ndipo silingasinthidwe.Pambuyo pake, zinadziwika kuti mtundu wobiriwira unachokera kuchitsulo kakang'ono m'zinthu zopangira, ndipo zosakaniza zachitsulo za divalent zinapangitsa galasi kuwoneka lobiriwira.Pambuyo powonjezera manganese dioxide, chitsulo choyambirira cha divalent chimasandulika kukhala chitsulo chapang'onopang'ono ndipo chimawoneka chachikasu, pamene manganese a tetravalent amasanduka trivalent manganese ndikuwoneka wofiirira.Optically, chikasu ndi wofiirira akhoza kuthandizana wina ndi mzake kumlingo wakuti, ndipo pamene osakaniza pamodzi kukhala woyera kuwala, galasi sangaponye mtundu.Komabe, patapita zaka zingapo, trivalent manganese adzapitiriza kukhala ndi okosijeni ndi mpweya, ndipo chikasu chidzawonjezeka pang'onopang'ono, kotero galasi lazenera la nyumba zakalezo lidzakhala lachikasu pang'ono.
Galasi yayikulu ndi yolimba ya amorphous yokhala ndi mawonekedwe osakhazikika (kuchokera pamalingaliro ang'onoang'ono, galasi ndimadzimadzi).Mamolekyu ake alibe dongosolo lokhazikika lautali mumlengalenga ngati makhiristo, koma amakhala ndi dongosolo lalifupi lofanana ndi zakumwa.ndandanda.Galasi imasunga mawonekedwe ake ngati olimba, ndipo samayenda ndi mphamvu yokoka ngati madzi.
Nthawi yotumiza: Sep-14-2021