DataVXJournal of Materials ResearchPaper
journal article·2008-08

Improving the high-temperature oxidation resistance of Zr2Al3C4 by silicon pack cementation

L.F. He, Y.W. Bao, M.S. Li, J.Y. Wang, Y.C. Zhou

Journal of Materials Research· Volume 23· Issue 8
Publisher page
Source abstract

Abstract

Silicon pack cementation has been applied to improve the oxidation resistance of Zr2Al3C4. The Si pack coating is mainly composed of an inner layer of ZrSi2 and SiC and an outer layer of Al2O3 at 1200 °C. The growth kinetics of silicide coating at 1000–1200 °C obey a parabolic law with an activation energy of 110.3 ± 16.7 kJ/mol, which is controlled by inward diffusion of Si and outward diffusion of Al. Compared with Zr2Al3C4, the oxidation resistance of siliconized Zr2Al3C4 is greatly improved due to the formation of protective oxidation products, aluminosilicate glass, mullite, and ZrSiO4.
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Research context

Ceramics & glasses

OpenAlex topics: MXene and MAX Phase Materials · Advanced ceramic materials synthesis · Intermetallics and Advanced Alloy Properties

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