Functionally graded laminated composites fabricated from MAX-phase filled preceramic papers: Microstructure, mechanical properties and oxidation resistance. Issue 5 (May 2022)

• Record Type: Journal Article
• Authors: Kashkarov, E.B.; Krotkevich, D.G.; Mingazova, Y.R.; Pushilina, N.S.; Syrtanov, M.S.; Lider, A.M.; Travitzky, N.
• Is Part Of: Journal of the European Ceramic Society. Volume 42:Issue 5(2022)
• Page Start: 2062
• Page End: 2072
• Publication Date: 2022-05
• Subjects: Preceramic Paper -- MAX-phases -- Functionally Graded Materials -- Laminated Composites -- Spark Plasma Sintering; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2022.01.023
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: This paper describes the fabrication and characterization of novel preceramic paper-derived functionally graded materials (FGMs) based on Ti3 (Si, Al)C2 MAX phase. The FGMs with different architecture were fabricated via spark plasma sintering of stacked preceramic papers at 1250 °C for 5 min. Microstructure, phase composition and elemental distribution were analyzed by scanning electron microscopy, X-ray diffraction and energy-dispersive X-ray spectroscopy, respectively. Oxidation tests were performed in air at 1300 °C for 5 h. FGMs containing Al- and Si-enriched MAX-phase layers were formed. The fabricated materials exhibit high flexural strength (over 600 MPa), which are dependent on microstructure and composition of individual layers as well as the architecture of composites. It was found that texturing of MAX phase grains during SPS results in anisotropic hardness of the composite. The difference in the composition of the individual layers also provides a hardness gradient in the composite. It was shown that the formation of the outer layer from the Al-enriched Ti3 Al(Si)C2 MAX phase increases the corrosion resistance of Ti3 SiC2 -based composites. The high corrosion resistance of FGMs is due to the growth of a continuous and dense Al2 O3 oxide layer.