Fast route to obtain Al2O3-based nanocomposites employing graphene oxide: Synthesis and sintering
Source abstract
Abstract
A fast approach based on microwave technology was employed for the sintering of novel composites of alumina and using graphene oxide (GO) as susceptor. The thermal stability and structure of GO materials produced by chemical oxidation of graphite were characterized. The morphology, structure and mechanical properties of the composites sintered by microwave approach were reported to the counterparts sintered by conventional method. The results indicated the formation of an interconnecting graphene network promoted the electrical conductivity in the composite having only 2 wt.% GO. Hardness and elastic modulus decreased significantly in samples sintered by conventional method due to lower values of density while microwave technology allowed to achieve a positive effect on the densification and showed a smaller grain size when compared to the one achieved by conventional heating. (C) 2014 Elsevier Ltd. All rights reserved.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Graphene research and applications · Aluminum Alloys Composites Properties · Advanced ceramic materials synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Graphenes as potential material for electronics10.1021/cr068010r ↗
2. The rise of graphene10.1038/nmat1849 ↗
3. High-speed graphene transistors with a self-aligned nanowire gate10.1038/nature09405 ↗
4. Graphene for future electronics10.1088/0031-8949/2012/T146/014025 ↗
5. Dispersion patterns of graphene and carbon nanotubes in ceramic matrix composites10.1016/j.cplett.2011.06.047 ↗
6. Improved Pd electro-catalysis for oxygen reduction reaction in direct methanol fuel cell by reduced graphene oxide10.1016/j.apcatb.2013.07.057 ↗
7. Measurement of the elastic properties and intrinsic strength of monolayer graphene10.1126/science.1157996 ↗
8. Superior thermal conductivity of single-layer graphene10.1021/nl0731872 ↗
9. Synthesis of magnetite/graphene oxide composite and application for cobalt(II) removal10.1021/jp208575m ↗
10. Recent advances in graphene based polymer composites10.1016/j.progpolymsci.2010.07.005 ↗
11. Graphene for tough and electroconductive alumina ceramics10.1016/j.jeurceramsoc.2013.07.007 ↗
12. Effect of combined chemical and electrochemical reduction of graphene oxide on morphology and structure of electrodeposited ZnO10.1016/j.ceramint.2014.03.008 ↗
13. Carbon nanotube toughened aluminium oxide nanocomposite10.1016/j.jeurceramsoc.2009.09.032 ↗
14. Surface coating on carbon nanofibers with alumina precursor by different synthesis routes10.1016/j.compscitech.2010.09.011 ↗
15. Improvement of CNFs/ZrO2 composites properties with a zirconia nanocoating on carbon nanofibers by sol–gel method10.1111/j.1551-2916.2010.04354.x ↗
16. Evaluation of mechanical reliability of zirconia-toughened alumina composites for dental implants10.1016/j.ceramint.2011.11.009 ↗
17. Microwave heating processes involving carbon materials10.1016/j.fuproc.2009.08.021 ↗
18. Influence of synthesis conditions on properties of green-reduced graphene oxide10.1007/s11051-013-1605-6 ↗
19. Evaluation of solution-processed reduced graphene oxide films as transparent conductors10.1021/nn700375n ↗
20. Fabrication of near-zero thermal expansion of fully dense β-eucryptite ceramics by microwave sintering10.1016/j.ceramint.2013.06.089 ↗
21. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments10.1557/JMR.1992.1564 ↗
22. Ultrasonication-assisted ultrafast reduction of graphene oxide by zinc powder at room temperature10.1016/j.carbon.2011.08.019 ↗
23. Ag/graphene heterostructures: synthesis, characterization and optical properties10.1002/ejic.200901048 ↗
24. Evidence of graphitic AB stacking order of graphite oxides10.1021/ja076473o ↗
25. Fabrication of highly conducting and transparent graphene films10.1016/j.carbon.2010.01.027 ↗
26. Machining of low electrical conductive materials by wire electrical discharge machining (WEDM)10.1016/j.jmatprotec.2003.11.055 ↗
27. State of the art electrical discharge machining (EDM)10.1016/S0890-6955(03)00162-7 ↗
28. Carbon nanofillers for machining insulating ceramics10.1016/S1369-7021(11)70214-0 ↗
29. New functional molecules for the green synthesis of graphene nanosheets10.1021/nn1002387 ↗
30. Raman spectra of graphite oxide and functionalized graphene sheets10.1021/nl071822y ↗
31. Uniaxial strain on graphene: Raman spectroscopy study and band-gap opening10.1021/nn800459e ↗
32. Control of graphene’s properties by reversible hydrogenation: evidence for graphene10.1126/science.1167130 ↗
33. High-quality single-layer graphene via reparative reduction of graphene oxide10.1007/s12274-011-0099-8 ↗
34. Tunable stress and controlled thickness modification in graphene by annealing10.1021/nn800031m ↗
35. Evaluation of solution-processed reduced graphene oxide films as transparent conductors10.1021/nn700375n ↗
36. Sintering crystalline solids10.1063/1.1736107 ↗
37. Nanoindentation of Al2O3/Al2TiO5 composites: small-scale mechanical properties of Al2TiO5 as reinforcement phase10.1016/j.jeurceramsoc.2012.05.034 ↗
38. Mechanical behaviour of 3Al2O3·2SiO2 films under nanoindentation10.1016/j.actamat.2012.07.031 ↗