Improved fracture toughness of laminated ZrB2-SiC-MoSi2 ceramics using SiC whisker
Source abstract
Abstract
Abstract In this study, SiC whisker (SiCw) was introduced to ZrB2 matrix layer of laminated ZrB2/BN ceramics to improve fracture toughness. Laminated ZrB2-SiCw/BN ceramics were prepared by tape casting and spark plasma sintering. For comparison, monolithic ZrB2-SiCw and laminated ZrB2-SiCp/BN ceramics were also prepared using the same method. The introduction of SiC whiskers increased fracture toughness of laminated ZrB2-SiCw/BN ceramics to 13.31 ± 0.33 MPa m1/2 for all samples. This was related to the multi-scale toughening mechanism, including delamination and crack deflection issued from the laminate structure at the macroscopic level, as well as whiskers bridging and pullout at the microscopic view. The R-curve behaviors of all samples revealed improved resistance to crack propagation of laminated ZrB2-SiCw/BN when compared to ZrB2-SiCp/BN and ZrB2-SiCw issued from multi-scale toughening design.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Toughened ZrB2-based ceramics through SiC whisker or SiC chopped fiber additions10.1016/j.jeurceramsoc.2009.11.012 ↗
2. Improved ablation resistance of C/SiC-ZrB2 composites via polymer precursor impregnation and pyrolysis10.1016/j.ceramint.2017.06.118 ↗
3. Processing and characterization of ZrB2-SiCW ultra-high temperature ceramics10.1016/j.jallcom.2008.04.082 ↗
4. Mechanical and ablation properties of laminated ZrB2-SiC/BN ceramics10.1016/j.jallcom.2015.03.097 ↗
5. Pressureless sintering of hafnium carbide-silicon carbide ceramics10.1111/jace.12339 ↗
6. Arc-jet testing on HfB2 and HfC-based ultra-high temperature ceramic materials10.1016/j.jeurceramsoc.2007.11.021 ↗
7. A simple way to make tough ceramics10.1038/347455a0 ↗
8. Effect of porous interlayers on crack deflection in ceramic laminates10.1016/S0955-2219(03)00338-8 ↗
9. Thermal shock of layered ceramic structures with crack‐deflecting interfaces10.1111/j.1151-2916.2001.tb00615.x ↗
10. The fabrication and failure of laminar ceramic composites10.1016/0956-7151(92)90471-P ↗
11. Laminated ZrB2-SiC ceramic with improved strength and toughness10.1016/j.scriptamat.2010.10.005 ↗
12. Processing and mechanical properties of zirconium diboride-based ceramics prepared by spark plasma sintering10.1111/j.1551-2916.2007.01665.x ↗
13. Processing and characterization of ZrB2-SiCW ultra-high temperature ceramics10.1016/j.jallcom.2008.04.082 ↗
14. Fabrication and mechanical properties of ZrB2-SiCw ceramic matrix composite10.1016/j.matlet.2007.07.044 ↗
15. Processing and mechanical properties of short carbon fibers toughened zirconium diboride-based ceramics10.1016/j.matdes.2008.03.011 ↗
16. Effect of carbon nanotubes on the properties of ZrB2-SiC ceramics10.1016/j.msea.2007.11.027 ↗
17. Microstructure‐strength properties in ceramics: I, Effect of crack size on toughness10.1111/j.1151-2916.1985.tb16163.x ↗
18. A critical evaluation of indentation techniques for measuring fracture toughness: I, direct crack measurements10.1111/j.1151-2916.1981.tb10320.x ↗
19. 2D Raman mapping and thermal residual stresses in SiC grains of ZrB2-SiC ceramic composites10.1016/j.ceramint.2015.07.161 ↗
20. Guideline of mapping parameters for Raman mapping of ZrB2-SiC ceramic composites10.1179/1743676115Y.0000000047 ↗
21. Fabrication and mechanical properties of laminated HfC–SiC/BN ceramics10.1016/j.jeurceramsoc.2014.04.021 ↗
22. Oxidation mechanisms and kinetics of 1D-SiC/C/SiC composite materials: II, modeling10.1111/j.1151-2916.1994.tb07016.x ↗
23. Development and characterization by HRTEM of hot-pressed Si3N4-SiC(w) composites10.1016/j.jmatprotec.2005.03.025 ↗
24. The fabrication and mechanical properties of bionic laminated ZrB2-SiC/BN ceramic prepared by tape casting and hot pressing10.1016/j.scriptamat.2011.07.031 ↗
25. Fabrication of laminated SiCw/SiC ceramic composites by CVI10.1016/j.jeurceramsoc.2013.02.019 ↗
26. Hertzian cone crack propagation on polycrystalline materials: role of R-curve and residual stresses10.1016/j.actamat.2007.09.030 ↗
27. Mechanics of transformation-toughening in brittle materials10.1111/j.1151-2916.1982.tb10426.x ↗
28. Indentation precracking of Y-TZP: implications to R -curves and strength10.1016/S0921-5093(97)00726-0 ↗
29. Fatigue threshold R-curves for predicting reliability of ceramics under cyclic loading10.1016/j.actamat.2005.02.018 ↗
30. Raman investigation of SiC polytypes10.1002/1521-396X(199707)162:1<39::AID-PSSA39>3.0.CO;2-L ↗
31. Analysis of residual stress in 6H-SiC particles within Al2O3/SiC composites through Raman spectroscopy10.1111/j.1151-2916.1992.tb07207.x ↗