Microstructure evolution and high-temperature mechanical properties of SiC f /SiC composites in liquid fluoride salt environment
Source abstract
Abstract
Abstract High temperature mechanical properties and microstructure evolution of chemical-vapor-infiltrated SiC fiber reinforced SiC ceramic matrix composites (SiC f /SiC) in 46.5LiF-11.5NaF-42.0KF (mol.%, FLiNaK) eutectic salt were investigated. The results indicate that the corrosion of SiC f /SiC composites was accelerated with increase of corrosion temperature. Interlayer boundaries in SiC matrix with higher oxygen content were corroded preferentially. The F − formed Si F coordinate bond with SiC and replaced carbon, followed by the corrosion of SiC matrix. While single SiC fiber tensile strength suffered no depravation after corrosion, corrosion and damage of SiC matrix led to deteriorated high temperature mechanical properties of SiC f /SiC composites.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties · Boron and Carbon Nanomaterials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. High temperature mechanical behaviour of an uncoated composite material10.1007/BF00543620 ↗
2. Mechanical properties of two plain-woven chemical vapor infiltrated silicon carbide-matrix composites10.1111/j.1151-2916.2001.tb00788.x ↗
3. Effect of delamination on the transverse thermal conductivity of a SiC-fiber-reinforced SiC-matrix composite10.1111/j.1151-2916.1998.tb02520.x ↗
4. High thermal conductivity SiC/SiC composites for fusion applications10.1016/S0022-3115(00)00213-0 ↗
5. The safety, environmental and economic implications of the use of silicon carbide in fusion power plant blankets10.1016/S0920-3796(01)00528-2 ↗
6. Mechanical properties of advanced SiC fiber composites irradiated at very high temperatures10.1016/j.jnucmat.2011.02.006 ↗
7. Stability of SiC and its composites at high neutron fluence10.1016/j.jnucmat.2010.12.088 ↗
8. Assessment of candidate molten salt coolants for the advanced high temperature reactor (AHTR)
9. Solubility of UF4, ThF4, and CeF3 in a LiF-NaF-KF melt10.1134/S1066362211050079 ↗
10. Chemical compatibility issues associated with use of SiC/SiC in advanced reactor concepts
11. Assessment of silicon carbide composites for advanced salt-cooled reactors
12. Corrosion of SiC induced by Hastelloy N alloy and its corrosion products in LiF–NaF–KF molten salt10.1016/j.corsci.2016.03.029 ↗
13. Effects of Cr3+ on the corrosion of SiC in LiF–NaF–KF molten salt10.1016/j.corsci.2016.10.026 ↗
14. Design, fabrication, and testing of ceramic plate-type heat exchangers with integrated flow channel design10.1111/j.1744-7402.2010.02573.x ↗
15. Effect of oxygen on the corrosion of SiC in LiF–NaF–KF molten salt10.1016/j.corsci.2015.11.014 ↗
16. Efforts on large scale production of NITE-SiC/SiC composites10.1016/j.jnucmat.2007.03.053 ↗
17. Properties and radiation effects in high-temperature pyrolyzed PIP-SiC/SiC10.1016/S0022-3115(00)00681-4 ↗
18. Process, microstructure and flexural properties of reaction sintered tyranno SA/SiC composites10.1016/S0022-3115(02)01059-0 ↗
19. Krenkel · 2008
20. Progress in SiC-based ceramic composites for fusion applications10.13182/FST03-A326 ↗
21. Material challenges for the next generation of fission reactor systems, in: j. Lecomte-Beckers
22. Materials corrosion in molten LiF–NaF–KF salt10.1016/j.jfluchem.2008.05.008 ↗
23. Evaluation of material corrosion in molten fluoride salt
24. Fabrication of advanced SiC fiber/F-CVI SiC matrix composites with SiC/C multi-layer interphase10.1016/j.jnucmat.2004.04.120 ↗
25. Interaction between SiO2 and a KF–KCl–K2SiF6 melt10.1021/jp4086816 ↗
26. Corrosion behavior of ZrC–SiC composite ceramics in LiF–NaF–KF molten salt at high temperatures10.1016/j.ceramint.2015.06.143 ↗
27. Structural coherency of epitaxial graphene on 3C–SiC(111) epilayers on Si(111)10.1063/1.3497287 ↗
28. Graphene formation on a 3C-SiC(111) thin film grown on Si(110) substrate10.1380/ejssnt.2009.311 ↗
29. LEED and Auger electron observations of the SiC(0001) surface10.1016/0039-6028(75)90419-7 ↗
30. Zhang · 2004
31. Zhenduo · 1992
32. Process and mechanical properties of in situ silicon carbide-nanowire-reinforced chemical vapor infiltrated silicon carbide/silicon carbide composite10.1111/j.1551-2916.2004.01720.x ↗