Oxidation Behavior of Yb2Si2O7 Modified SiC/SiC Mini-composites
Source abstract
Abstract
Silicon carbon fiber reinforced silicon carbide ceramic matrix composites (SiC/SiC composites) possess excellent properties such as low density, high temperature resistance, and high strength.It is the promising materials for structural components in the aerospace field.In this study, Yb2Si2O7 modified SiC/SiC mini-composites (SiC/SiC-Yb2Si2O7 minicomposites) were prepared by introducing Yb2Si2O7 anti-oxidation phase into SiC fiber bundles via sol-gel method, and depositing SiC matrix by chemical vapor deposition (CVD).The influence of Yb2Si2O7 on the microstructure, mechanical, and oxidation properties of SiC/SiC mini-composites was investigated.The results showed that the strength retention of SiC/SiC mini-composites after oxidation in air at 1200 °C and 1400 °C for 50 h was 77% and 70%, and the fracture morphology exhibited a flat area.The Yb2Si2O7 introduced by sol-gel method partially distributed in a layered, contributed to the toughening of the material.The interlayer debonding phenomena were observed on the fracture surface, which extends the energy dissipation mechanism of SiC/SiC mini-composites.The room temperature tensile strength of SiC/SiC-Yb2Si2O7 mini-composites was 484 MPa, and after oxidation in air at 1200 °C and 1400 °C for 50 h, the strengths were 425 MPa and 374 MPa, with retention rates of 88% and 77%, respectively.It displayed typical non-brittle fracture characteristics.EDS results indicated that the interface oxygen content at the fracture surface of SiC/SiC mini-composites was higher than that of SiC/SiC-Yb2Si2O7 mini-composites.The introduction of Yb2Si2O7 alleviated oxygen diffusion towards the interface, improving the oxidation resistance of SiC/SiC mini-composites.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties · Advanced Surface Polishing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (18)
Show source-provided references
1. HE F, CAO Y, LIU Y, et al. Self-healing and failure behavior of yttrium silicate coated SiCf/SiC composites in air at elevated temperatures. Ceramics International, 2023, 49(3): 5335.10.1016/j.ceramint.2022.10.057 ↗
2. YANG H, YANG Y, CAO X, et al. Thermal shock resistance and bonding strength of tri-layer Yb2SiO5/mullite/Si coating on SiCf/SiC composites. Ceramics International, 2020, 46(17): 27292.10.1016/j.ceramint.2020.07.214 ↗
3. DETWILER K N, OPILA E J. Oxidation of SiC/BN/SiC ceramic matrix composites in dry and wet oxygen at intermediate temperatures. Journal of the European Ceramic Society, 2022, 42(10): 4110.10.1016/j.jeurceramsoc.2022.04.003 ↗
4. XU X, LUAN X, ZHANG J, et al. Single-source-precursor derived SiHfBCN enhancing oxidation resistance of SiC/SiC composites in wet oxygen. Corrosion Science, 2022, 208: 110602.10.1016/j.corsci.2022.110602 ↗
5. HE F, LIU Y, LI J, et al. Effect of heat treatment on the microstructure and strength of yttrium silicate matrix-modified SiCf/SiC composites. Journal of the European Ceramic Society, 2021, 41(16): 93.10.1016/j.jeurceramsoc.2021.09.031 ↗
6. KITAHARA T, MITANI K, SAITO H, et al. Improvement in the self-healing property of plasma-sprayed environmental barrier coatings by SiC addition. Journal of Thermal Spray Technology, 2022, 31(8): 2314.10.1007/s11666-022-01441-w ↗
7. ZHANG Q, XIA X, CHEN P, et al. Current research art of rare earth compound modified SiC-CMCs for enhanced wet-oxygen corrosion resistance. Ceramics International, 2022, 48(17): 24131.10.1016/j.ceramint.2022.03.210 ↗
8. LUO Y, SUN L, WANG J, et al. Phase formation capability and compositional design of β-phase multiple rare-earth principal component disilicates. Nature Communications, 2023, 14: 1275.10.1038/s41467-023-36947-6 ↗
9. BOAKYE E E, MOGILEVSKY P, PARTHASARATHY T A, et al. Processing and testing of RE2Si2O7 fiber-matrix interphases for SiC-SiC composites. Journal of the American Ceramic Society, 2016, 99(2): 415.10.1111/jace.13935 ↗
10. BOAKYE E E, MOGILEVSKY P, KEY T S, et al.In situ Y2Si2O7 coatings on hi-Nicalon-S SiC fibers: phase formation and fiber strength. Journal of the American Ceramic Society, 2019, 102(10): 5725.10.1111/jace.16428 ↗
11. BOAKYE E E, MOGILEVSKY P, HAY R S, et al. Rare-earth disilicates as oxidation-resistant fiber coatings for silicon carbide ceramic-matrix composites. Journal of the American Ceramic Society, 2011, 94(6): 1716.10.1111/j.1551-2916.2010.04306.x ↗
12. BOAKYE E E, KEY T S, PARTHASARATHY T A, et al. Evaluation of SiC/SiC minicomposites with yttrium disilicate fiber coating. Journal of the American Ceramic Society, 2018, 101(1): 91.10.1111/jace.15170 ↗
13. BOAKYE E E, KEY T S, MOGILEVSKY P, et al. SiC/SiC mini-composites with yttrium disilicate fiber coatings: oxidation in steam. Journal of the European Ceramic Society, 2021, 41(5): 3132.10.1016/j.jeurceramsoc.2020.09.033 ↗
14. WANG P, WANG Q L, ZHANG X Y, et al. Oxidation behavior of SiCf/SiC composites modified by layered-Y2Si2O7 in wet oxygen environment. Journal of Inorganic Materials, 2019, 34(8): 904.10.15541/jim20180590 ↗
15. ZHAO C, WANG F, SUN Y, et al. Synthesis and characterization of β-Yb2Si2O7 powders. Ceramics International, 2013, 39(5): 5805.10.1016/j.ceramint.2013.01.001 ↗
16. NASIRI N A, PATRA N, NI N, et al. Oxidation behaviour of SiC/SiC ceramic matrix composites in air. Journal of the European Ceramic Society, 2016, 36(14): 3293.10.1016/j.jeurceramsoc.2016.05.051 ↗
17. YANG H, LU Z, BIE B, et al. Microstructure and damage evolution of SiCf/PyC/SiC and SiCf/BN/SiC mini-composites: a synchrotron X-ray computed microtomography study. Ceramics International, 2019, 45(9): 11395.10.1016/j.ceramint.2019.03.004 ↗
18. DAI J, HE L, XU Z, et al. Oxidation behavior of SiCf/SiC minicomposites with multilayered (BN/SiC)n interfacial coatings under humid environment. Journal of Materials Engineering and Performance, 2022, 31(12): 10343.10.1007/s11665-022-07046-2 ↗