1996
DOI: 10.1016/0257-8972(95)02428-x
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Electrochemical studies on the corrosion of a range of zinc alloy coated steel in alkaline solutions

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Cited by 83 publications
(31 citation statements)
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“…The conversion of the precursors into OIH materials proceeds via the formation of siloxane (Si-O-Si) bonds. This process takes place by hydrolysis of monomeric tetrafunctional alkoxide precursors that can be catalyzed by an acid (e.g., HCl) or alkaline compound (e.g., NH 3 ).Several studies have shown [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] that the mechanical, thermal and electrical properties of OIH materials obtained by sol-gel methods based on siloxanes are interesting and as such, these materials can be used as pre-treatments to improve the corrosion resistance of several metals and alloys.The combination of functionalized siloxanes and polymeric structures is a route to produce homogeneous OIH materials with enhanced properties. This is due to their capacity to host chemical species with distinct properties within the produced matrix.…”
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confidence: 99%
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“…The conversion of the precursors into OIH materials proceeds via the formation of siloxane (Si-O-Si) bonds. This process takes place by hydrolysis of monomeric tetrafunctional alkoxide precursors that can be catalyzed by an acid (e.g., HCl) or alkaline compound (e.g., NH 3 ).Several studies have shown [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] that the mechanical, thermal and electrical properties of OIH materials obtained by sol-gel methods based on siloxanes are interesting and as such, these materials can be used as pre-treatments to improve the corrosion resistance of several metals and alloys.The combination of functionalized siloxanes and polymeric structures is a route to produce homogeneous OIH materials with enhanced properties. This is due to their capacity to host chemical species with distinct properties within the produced matrix.…”
mentioning
confidence: 99%
“…A method that is widely accepted and recognized as efficient at providing corrosion protection of the RC structures is the application of hot-dip galvanized steel (HDGS), since it is considered economically favorable when compared to others. The use of HDGS has been recognized by several authors 7,[8][9][10][11][12] as an effective measure to increase the service life of RC structures exposed to carbonation or to chloride ions. However, zinc in contact with fresh concrete (high alkaline environment) is oxidized and hydrogen evolution occurs, for a limited period, until passivating formation layers occur and concrete hardens.…”
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“…Protože při expozicích pozinkované oceli v modelovém pórovém roztoku betonu o pH 12,6 (nasycený roztok Ca(OH) 2 -simulace idealizovaného betonu bez přítomnosti oxidů alkalických kovů ve slínku) lze na počátku expozice u zinkované oceli zaznamenat E kor ~ -1100 až -1200 mV vs. SCE [33], což je nižší potenciál než teoreticky vypočtený rovnovážný potenciál pro redukci vodíku při pH 14 (E rov = -1070 mV vs. SCE) [35]. Lze se tedy úspěšně domnívat, že koroze žárově zinkované oceli je v čerstvém betonu třídy "NSC" ("Normal Strength Concrete") z čistého portlandského cementu (CEM I) doprovázena vždy vývojem vodíku.…”
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“…Rozdíl v dosažených pevnostech mezi záměsí číslo 1 a záměsí číslo 2 je pravděpodobně způsoben cementem. Přestože [9,35]. Obvykle se tvrdí, že intermetalické fáze Fe-Zn jsou v modelových pórových roztocích méně odolné než fáze η nebo čistý zinek [60,61].…”
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