Polymer-derived SiAlOC coating to improve the high-temperature resistance of chromium

被引：3

作者：

Petry, Nils-Christian ^{[1
]}

Bik, Maciej ^{[2
]}

Wilk, Lukasz ^{[2
]}

Swadzba, Radoslaw ^{[3
]}

Ulrich, Anke Silvia ^{[1
,4
]}

Sitarz, Maciej ^{[2
]}

Lepple, Maren ^{[1
,5
]}

Galetz, Mathias Christian ^{[1
]}

机构：

[1] DECHEMA Forschungsinst Mat & Corros, Theodor Heuss Allee 25, D-60486 Frankfurt, Germany

[2] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Av Mickiewicza 30, PL-30059 Krakow, Poland

[3] Lukasiewicz Res Network, Uppersilesian Inst Technol, St K Miarki 12-14, PL-44100 Gliwice, Poland

[4] Univ Bayreuth, Met & Alloys 2, Prof Rudiger Bormann Str 1, D-95447 Bayreuth, Germany

[5] Justus Liebig Univ Giessen, Dept Inorgan & Analyt Chem, Heinrich Buff Ring 17, D-35392 Giessen, Germany

来源：

SURFACE & COATINGS TECHNOLOGY | 2023年 / 474卷

关键词：

Raman spectroscopy; STEM; Polymer-derived ceramics; Chromium; Oxidation; Thin film coatings; TRANSMISSION ELECTRON-MICROSCOPY; SOL-GEL; OXIDATION RESISTANCE; TRANSITION-METALS; PURE CHROMIUM; GLASSES; ALLOYS; OXIDE; BEHAVIOR; ENERGY;

D O I：

10.1016/j.surfcoat.2023.130049

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cr and its alloys are interesting materials for applications at temperatures higher than 1000(degrees)C. However, challenges such as limited oxidation resistance and nitridation still restrict their usage as high-temperature structural materials. The present work investigates the influence of a 0.6 mu m thin SiAlOC sol-gel coating on the oxidation resistance and kinetic of Cr at 950(degrees)C for 50 h and 1050(degrees)C for up to 100 h of exposure time in dry synthetic air using thermogravimetric analysis. The resulting oxide scale and microstructure were extensively studied by combining different techniques such as EPMA, XRD, SEM, Raman spectroscopy, FT-IR, and STEM. Overall, a reduction in mass gain and an improved scale adhesion was observed. The interaction of coating and substrate causing nanosized Cr2O3 and cristobalite formation in the SiAlOC coating was further supported by investigations of bulk materials.

引用

页数：22

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