Lokacin da muke tunani game da kalmar “tsatsa,” Hoton farko da sau da yawa ke zuwa a zuciya shi ne rufin ja-ja-jaja-launin ruwan kasa wanda ke samuwa akan ƙarfe ko karfe lokacin da aka fallasa shi ga ɗanɗanar iska., wani al'amari a kimiyance da aka sani da iron oxide.Za a iya misalta halayen sinadaran kamar haka:

4𝐹𝑒+3𝑂2+6𝐻2𝑂→4𝐹𝑒(𝑂𝐻)3;

Wannan halayen yana haifar da samuwar ƙarfe mai ruwa(III) oxide, wanda aka fi sani da tsatsa.

Duk da haka, lokacin da ya zo ga aluminum, tambayar ta taso: Yana lalata aluminum? Domin amsa wannan, muna bukatar mu zurfafa cikin mene ne tsatsa da gaske, yadda yake shafar karafa daban-daban, kuma musamman, yadda aluminum ke amsawa a ƙarƙashin irin wannan yanayi.

Menene Tsatsa?

Tsatsa musamman nau'in lalata ce da ke faruwa da ƙarfe da ƙarfe lokacin da aka fallasa su ga iskar oxygen da danshi. Sakamakon sinadaran yana haifar da baƙin ƙarfe oxide. Siffar tsatsa ta bambanta ba kawai launinta ba ne, har ma da yadda take sa ƙarfen ya faɗaɗa ya ɓalle, wanda a ƙarshe zai iya yin lahani ga daidaiton tsarin ƙarfe.

Aluminum da lalata

Aluminum, sabanin ƙarfe, ba ya tsatsa. Wannan saboda aluminum bai ƙunshi ƙarfe ba, don haka, takamaiman halayen sinadaran da ke haifar da baƙin ƙarfe oxide (tsatsa) ba zai iya faruwa ba. Duk da haka, wannan ba yana nufin aluminum yana da kariya ga kowane nau'i na lalata ba. Maimakon tsatsa, aluminum undergoes a process called oxidation.The chemical reaction for the formation of aluminum oxide is as follows:

4𝐴𝑙+3𝑂2→2𝐴𝑙2𝑂3;

Wannan dauki ba zato ba tsammani kuma exothermic, ma'ana yana sakin zafi. Layin aluminum oxide yana da wuyar gaske kuma yana ba da kyakkyawan kariya daga ƙarin lalata.

Tsarin Oxidation a cikin Aluminum

Lokacin da aluminum ke fallasa zuwa yanayi, yana amsawa da iskar oxygen don samar da aluminum oxide akan samansa. Wannan Layer oxide na aluminum ya bambanta da tsatsa ta hanyoyi da yawa:

1. Launi da Rubutu: Aluminum oxide ba ya fashe ko ja kamar baƙin ƙarfe oxide. A maimakon haka, yana yin fari ko bayyananne, Layer na kariya wanda gabaɗaya ba a sani ba.
2. Kariya Kariya: Sabanin baƙin ƙarfe oxide, wanda ke lalacewa kuma yana lalata ƙarfe, Aluminum oxide a haƙiƙa yana kare ƙaƙƙarfan ƙarfe daga ƙara lalacewa. Wannan Layer yana buɗewa da sauri lokacin da sabon aluminum ya fallasa zuwa iska kuma yana da matukar juriya ga ci gaba da lalata.

Me yasa Aka Zaba Aluminum don Aikace-aikacen Waje

Abubuwan da ke tattare da aluminum sun sa ya zama kyakkyawan zaɓi don aikace-aikacen waje. Ga 'yan dalilan da ya sa:

• Dorewa: Saboda kariyar oxide Layer, aluminum yana da matukar juriya ga lalacewar yanayi, musamman a wuraren da yawanci ke hanzarta tsatsawar ƙarfe.
• Mai nauyi: Aluminum yana da haske sosai idan aka kwatanta da sauran karafa, yin shi manufa zabi ga aikace-aikace inda nauyi ne factor, kamar a cikin jirgi, gina motoci, da kuma šaukuwa Tsarin.
• Mara Guba da Maimaituwa: Aluminum is non-toxic and highly recyclable, wanda ke ba da gudummawa ga shahararsa a cikin marufi da gine-gine.

Abubuwan Da Suka Shafi Lalacewar Aluminum

Yayin da aluminum ke jure lalata, wasu yanayi na iya hanzarta aiwatarwa ko haifar da wasu nau'ikan lalata:

• Lalacewar Galvanic: Wannan yana faruwa ne lokacin da aluminum ke hulɗa da wani ƙarfe mafi daraja a gaban na'urar lantarki, yana haifar da ƙara lalata.
• Dalilan Muhalli: Fitarwa ga gurɓacewar masana'antu, muhallin gishiri (kamar yankunan bakin teku), kuma matsanancin yanayin pH na iya haɓaka lalata.

Aluminum vs. Sauran Karfe: Juriya na Lalata

Comparing the corrosion resistance of aluminum to other metals helps illustrate its advantages and limitations.

Tebur : Juriya na Lalata na Ƙarfe-Ƙarfe na gama-gari