Assessing fracture toughness in sintered Al2O3–ZrO2(3Y)–SiC ceramic composites through indentation technique
Source abstract
Abstract
Abstract Al2O3–ZrO2(3Y)–SiC ceramic composites were prepared by spark plasma sintering. The fracture toughness (K1C) of the material was evaluated by indentation technique using different types of empirical formulas between 29.4 N and 98 N. The calculated K1C values depend on the crack profile and the applied load. By analyzing the relationship between the indentation radius and the crack length and the crack profile, the crack form of the composite is determined as a Palmqvist crack. Raman spectra result shows that ZrO2 has a significant martensitic phase transformation when the applied load is 5 kg or higher. Additionally, the K1C value decreases slightly as the load increases. The equation based on the Palmqvist crack system and the curve fitting equation are more suitable for the calculation of the K1C value of the material. The composite exhibits a combination of various toughening mechanisms, such as crack deflection and bridging, thereby improving the fracture toughness of the material.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Aluminum Alloys Composites Properties
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References (40)
Show source-provided references
1. Fracture toughness of ceramics and ceramic composites10.1016/S0272-8842(02)00230-4 ↗
2. Structural ceramics
3. Effects of yttria stabilized zirconia (3Y-TZP) percentages on the ZTA dynamic mechanical properties10.1016/j.ijrmhm.2015.01.005 ↗
4. Fracture in ceramic materials
5. Preparation and thermal shock resistance of corundum-mulliteceramic composites from andalusite10.1016/j.ceramint.2016.10.116 ↗
6. Strengthening and toughening mechanisms of ceramic nanocomposites10.1111/j.1151-2916.1998.tb02503.x ↗
7. Brittle fracture and toughening mechanism in ceramics10.1146/annurev.ms.14.080184.002105 ↗
8. Zirconia-toughened alumina (ZTA) ceramics10.1007/BF02385721 ↗
9. Microstructure and mechanical properties of yttria-stabilized ZrO2/Al2O3 nanoceramic composites10.1016/j.ceramint.2007.06.005 ↗
10. On the Vickers indentation fracture toughness test10.1111/j.1551-2916.2006.01482.x ↗
11. Evaluation by indentation of fracture toughness of ceramic materials10.1007/BF00544209 ↗
12. Indentation fracture: principles and applications10.1007/BF00823224 ↗
13. Equilibrium penny-like cracks in indentation fracture10.1007/BF00557479 ↗
14. Residual stress effects in sharp contact cracking10.1007/BF00551043 ↗
15. Fracture toughness determinations by indentation10.1111/j.1151-2916.1976.tb10991.x ↗
16. Elastic/plastic indentation damage in ceramics: the median/radial crack system10.1111/j.1151-2916.1980.tb10768.x ↗
17. A critical evaluation of indentation techniques for measuring fracture toughness: I, direct crack measurements10.1111/j.1151-2916.1981.tb10320.x ↗
18. The elastic/plastic indentation of ceramics10.1007/BF00721390 ↗
19. A fracture mechanics analysis of indentation-induced Palmqvist crack in ceramics10.1007/BF00725625 ↗
20. Indentation fracture of WC-Co cermets10.1007/BF00555296 ↗
21. The origins of internal stresses in polycrystalline Al2O3 and their effects on mechanical properties
22. Evans · 1979 · 112
23. Indentation microfracture in the Palmqvist crack regime: implications for fracture toughness evaluation by the indentation method10.1007/BF00721938 ↗
24. Orange · Mater. Technol. · 1988 · 3 · 2910.1051/mattech/198876030029 ↗
25. Phase transformation around indentations in zirconia10.1007/BF00728613 ↗
26. Phase transformation introduced by mechanical and chemical surface preparations of tetragonal zirconia polycrystals10.1111/j.1151-2916.1993.tb03819.x ↗
27. Elastic/plastic indentation damage in ceramics: the lateral crack system10.1111/j.1151-2916.1982.tb10782.x ↗
28. Indentation fracture toughness and surface flaw analysis of sintered alumina/SiC nanocomposites10.1016/0955-2219(96)00038-6 ↗
29. Microstructure and mechanical properties of SPS sintered Al2O3-ZrO2 (3Y)-SiC ceramic composites10.1016/j.msea.2020.139197 ↗
30. Densification, microstructure, and mechanical properties of ZrC-SiC ceramics10.1111/jace.16505 ↗
31. Fabrication and mechanical properties of nano-/micro-sized Al2O3/SiC composites10.1016/j.msea.2008.10.021 ↗
32. Fracture toughness of structural ceramics10.1016/S0272-8842(98)00056-X ↗
33. Fracture toughness of (Ce) stabilized ZrO2/Al2O3 composites10.1016/0272-8842(89)90050-3 ↗
34. Dependence of fracture toughness of alumina on grain size and test technique10.1111/j.1151-2916.1982.tb10783.x ↗
35. Comparison of K1C values for Al2O3-ZrO2 composites obtained from notched-beam and indentation strength techniques10.1111/j.1151-2916.1983.tb10002.x ↗
36. Deformation of crack-bridging ductile reinforcements in toughened brittle materials10.1016/0001-6160(89)90207-1 ↗
37. Effect of special microstructure on the mechanical properties of nanocomposite10.1016/j.msea.2007.10.072 ↗
38. Study on the multi-scale nanocomposite ceramic tool material10.4028/www.scientific.net/KEM.315-316.118 ↗
39. Sun · Acta Metall. Sin. · 1999 · 35 · 879
40. Garive · Nature (London) · 1975 · 258 · 70310.1038/258703a0 ↗