Effect of graphene and SiC whisker on the mechanical properties of WC-TiC-TiN-Al2O3 nanocomposites
Source abstract
Abstract
In this study, dense binderless tungsten carbides (WC) were prepared through two-step sintering (TSS) employing TiC/TiN and MLG/SiC w as the reinforcements. Influences of the hybrid additives on the densification behavior, microstructure as well as mechanical performances of WC-based nano-composite were investigated. TiC/TiN hybrid incorporation resulted in an enhanced densification with inhibited coalescence of the binderless WC through improving the homogeneous distribution of Al 2O 3 in the WC matrix. The formation of solid-solution and minor liquid phase were the major densification mechanisms. Higher toughening effectiveness was obtained for MLG/SiC w hybrid doping in comparison with single MLG or SiC w addition. A hardness of 22.8 GPa, a flexural strength of 1174.3 MPa coupled with a fracture toughness of 12.7 MPa mm 1/2 were achieved for the TiC/TiN and MLG/SiC w co-added WC-based samples. The dominated toughening mechanisms were determined as crack bridging and deflection, MLG/SiC w pullout as well as intragranular/ intergranular microstructure.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced materials and composites · Advanced ceramic materials synthesis · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
Show source-provided references
1. A review on binderless tungsten carbide: development and application10.1007/s40820-019-0346-1 ↗
2. Development and application of WC-based alloys bonded with alternative binder phase10.1080/10408436.2018.1483320 ↗
3. Cemented carbide microstructures: a review10.1016/j.ijrmhm.2018.12.004 ↗
4. Materials science of cemented carbides-an overview10.1016/S0261-3069(01)00007-3 ↗
5. Role of the binder phase in cemented tungsten carbide-cobalt alloys
6. Properties of ultra-fine grain binderless cemented carbide ‘RCCFN’10.1016/0263-4368(95)92676-B ↗
7. Binderless WC and WC-VC materials obtained by pulsed electric current sintering10.1016/j.ijrmhm.2007.01.002 ↗
8. Bulk WC-Al2O3 composites prepared by spark plasma sintering10.1016/j.ijrmhm.2011.07.003 ↗
9. Enhanced mechanical properties and consolidation of the ultra-fine WC-Al2O3 composites using pulsed current activated heating10.1016/j.ceramint.2016.02.113 ↗
10. Fabrication and characterizations of new nanocomposite WC/Al2O3 materials by room temperature ball milling and subsequent consolidation10.1016/j.jallcom.2004.08.064 ↗
11. Study of processing routes for WC-MgO composites with varying MgO contents consolidated by FAST/SPS10.1016/j.jeurceramsoc.2017.01.005 ↗
12. Two-step hot-pressing sintering of nanocomposite WC-MgO compacts10.1016/j.jeurceramsoc.2011.04.001 ↗
13. Sintering behavior and mechanical properties of binderless WC-TiC produced by pulsed current activated sintering
14. Effects of ZrC and SiC addition on the microstructures and mechanical properties of binderless WC10.1016/j.ijrmhm.2017.09.002 ↗
15. Sintering of binderless WC-Mo2C hard materials by rapid sintering process10.1016/j.ceramint.2007.03.029 ↗
16. Effect of ZrC nano-powder addition on the microstructure and mechanical properties of binderless tungsten carbide fabricated by spark plasma sintering10.1016/j.ijrmhm.2014.10.013 ↗
17. Spark plasma sintered WC-ZrO2-Co nanocomposites with high fracture toughness and strength10.1111/j.1551-2916.2010.03685.x ↗
18. Preparation of WC-SiC whisker composites by hot pressing and their mechanical properties10.2320/matertrans.MRA2008019 ↗
19. Controllable fabrication and multifunctional applications of graphene/ceramic composites10.1007/s40145-020-0376-7 ↗
20. Toughening in graphene ceramic composites10.1021/nn200319d ↗
21. Macro-micro-nano multistage toughening in nano-laminated graphene ceramic composites
22. Determination of microstructure and mechanical properties of functionally graded WC-TiC-Al2O3-GNPs micro-nano composite tool materials via two-step sintering10.1016/j.ceramint.2017.04.086 ↗
23. Hybrid multilayer graphene and SiC whisker reinforced TiB2 based nano-composites by two-step sintering10.1016/j.jallcom.2020.157283 ↗
24. Hierarchical toughening of laminated nanocomposites with three-dimensional graphene/carbon nanotube/SiC nanowire
25. Zhou · 2014
26. Fabrication of dense nano-laminated tungsten carbide materials doped with Cr3C2/VC through two-step sintering10.1016/j.jeurceramsoc.2018.02.037 ↗
27. Quantifying defects in graphene via raman spectroscopy at different excitation energies10.1021/nl201432g ↗
28. Sintering dense nanocrystalline ceramics without final-stage grain growth10.1038/35004548 ↗
29. Zhang · 2006
30. Graphene: status and prospects10.1126/science.1158877 ↗
31. A broadband solar radio dynamic spectrometer working in the millimeter-wave band10.3847/1538-4365/ac4257 ↗
32. Wachtman · 2009 · 212
33. Microstructure and properties of graphene nanoplate/3y-tzp composite prepared by spark plasma sintering
34. Toughening and reinforcing alumina matrix composite with single-wall carbon nanotubes10.1063/1.2336623 ↗
35. Effect of grain width and aspect ratio on mechanical properties of Si3N4 ceramics10.1007/s10853-006-0826-9 ↗