Ọlaọcha bụ ihe ọla na-ewu ewu nke ukwuu ruo etiti 1930s, mgbe ọ bụ ihe nkiri na-egosipụta isi maka ngwa ngwa anya nke ọma, nke a na-etinyekarị na mmiri mmiri. A na-eji usoro ihe mkpuchi mmiri mmiri na-emepụta enyo maka iji mee ihe na ihe owuwu, na n'ime ngwa a, a na-eji akwa akwa tin dị ezigbo mkpa iji hụ na ihe nkiri ọlaọcha ahụ jikọtara n'elu iko ahụ, bụ nke a na-echebe site na mgbakwunye nke akwa ọla kọpa. N'ime ngwa ndị dị n'elu, ọlaọcha na-emeghachi omume na oxygen na ikuku ma na-efunahụ ya n'ihi nhazi nke ọlaọcha sulfide. Otú ọ dị, n'ihi na nke elu reflectivity nke ọlaọcha film dị nnọọ mgbe plating na eziokwu na ọlaọcha evaporates nnọọ mfe, ọ ka na-eji dị ka a nkịtị ihe maka obere oge ojiji nke components. A na-ejikarị ọla ọcha eme ihe na ihe ndị chọrọ mkpuchi nwa oge, dị ka efere interferometer maka ịlele ịdị larịị. Na ngalaba na-esote, anyị ga-emeziwanye ihe nkiri ọlaọcha na mkpuchi mkpuchi.
N'afọ ndị 1930, John Strong, bụ́ onye ọsụ ụzọ n'enyo nke mbara igwe, jiri ihe nkiri alumini nwere vepo dochie ihe nkiri ọlaọcha ndị e ji kemịkal mepụta.
Aluminom bụ ọla a na-ejikarị eme ihe maka ịkwanye enyo n'ihi ịdị mfe nke evaporation, ezigbo ultraviolet, nke a na-ahụ anya, na infrared reflectivity, na ikike ya ịrapagidesi ike na ọtụtụ ihe, gụnyere plastik. Ọ bụ ezie na a mkpa oxide oyi akwa mgbe niile na-etolite n'elu aluminum mirrors ozugbo plating, nke na-enyere aka igbochi n'ihu corrosion nke mirror elu, reflectivity nke aluminum mirror ka ji nwayọọ nwayọọ ibelata n'oge ojiji. Nke a bụ n'ihi na a na-eji ya eme ihe, karịsịa ma ọ bụrụ na enyo aluminom na-ekpuchi ya kpamkpam na ọrụ mpụga, ájá na unyi na-apụghị izere ezere na-anakọta n'elu enyo, si otú a na-ebelata ihe ngosi. Arụmọrụ nke ọtụtụ ngwa anaghị emetụta nke ukwuu site na mbelata nlegharị anya. Otú ọ dị, n'ọnọdụ ndị ahụ ebe ebumnuche bụ ịnakọta oke ọkụ ọkụ, ebe ọ bụ na ọ na-esiri ike ihicha enyo aluminom na-enweghị imebi oyi akwa ihe nkiri, a na-emegharị akụkụ ndị ahụ plated kwa oge. Nke a na-emetụta karịsịa telescopes nnukwu reflector. N'ihi na enyo ndị bụ isi buru ibu ma dị arọ, a na-edobe enyo ndị bụ isi nke teliskop kwa afọ na igwe mkpuchi nke etinyere na ebe a na-ekiri ihe, a naghị atụgharịkarịkwa ha n'oge evaporation, kama a na-eji ọtụtụ isi mmalite evaporation iji hụ na ịdị n'otu nke ọkpụrụkpụ ihe nkiri ahụ. A ka na-eji aluminom eme ihe n'ọtụtụ teliskop taa, ma ụfọdụ n'ime teliskop ndị ọhụrụ na-eji ihe nkiri ọla dị elu ka ukwuu nke na-agụnye ihe mkpuchi ọlaọcha na-ekpuchi ikuku.
Ọlaedo nwere ike ịbụ ihe kachasị mma maka itinye ihe nkiri na-egosipụta infrared. Ebe ọ bụ na ngosipụta nke ihe nkiri ọla edo na-ebelata ngwa ngwa na mpaghara a na-ahụ anya, na omume, a na-eji ihe nkiri ọla edo mee naanị n'ogologo nm karịa 700 nm. Mgbe edobere ọla edo na iko, ọ na-eme ihe nkiri dị nro nke nwere ike imebi. Otú ọ dị, ọla edo na-akwadosi ike na chromium ma ọ bụ nickel-chromium (ihe nkiri na-eguzogide nwere 80% nickel na 20% chromium) ihe nkiri, ya mere a na-ejikarị chromium ma ọ bụ nickel-chromium eme ihe dị ka oghere oghere n'etiti ihe nkiri ọla edo na mkpụrụ iko.
Rhodium (Rh) na platinum (Pt) reflectivity dị ala karịa ọla ndị ọzọ a kpọtụrụ aha n'elu, a na-ejikwa ha naanị n'ọnọdụ ndị ahụ ebe enwere ihe pụrụ iche a chọrọ maka nguzogide corrosion. Ihe nkiri metal abụọ ahụ na-akwadosi ike na iko ahụ. A na-ejikarị rhodium kpuchie enyo eze n'ihi na a na-ekpughere ya na ọnọdụ mpụga dị njọ nke ukwuu, ọ ga-abụrịrị na ọ ga-ekpochapụ ya. A na-ejikwa ihe nkiri Rhodium mee ihe na enyo nke ụfọdụ ụgbọ ala, nke na-abụkarị ihe ngosi ihu ihu nke dị n'èzí ụgbọ ala ahụ, ma na-enwe ike ịnweta ihu igwe, usoro nhicha, na nlekọta ọzọ mgbe ị na-eme ọgwụgwọ ihicha. Isiokwu ndị gara aga kwuru na uru nke ihe nkiri rhodium bụ na ọ na-enye nkwụsi ike ka mma karịa ihe nkiri aluminom.
–E wepụtara akụkọ aonye na-emepụta igwe mkpuchi ikukuGuangdong Zhenhua
Oge nzipu: Sep-27-2024