Spark plasma sintering of graphene reinforced hydroxyapatite composites
Source abstract
Abstract
Abstract Hydroxyapatite (prepared from eggshell)/graphene (HAP/GNPs) composites were prepared by spark plasma sintering (SPS). Pure HAP does not have good mechanical properties so it is necessary to combine them with other materials, which endow them acceptable strength. Sintering was carried out at various temperatures (700 °C and 900 °C) and holding times (5 and 10 min). Rapid processing time and low sintering temperatures was of importance to avoid HAP decomposition. Mechanical and structural properties of the sintered bodies were studied with different methods. The highest relative density ~96% was obtained at 700 °C sintering temperature regardless of the holding time. Composite with the best mechanical properties (hardness ~4 GPa, 3-point bending strength ~119 MPa) consisted of HAP elongated grains with average length of 300 nm. The GNPs were agglomerated and located on grain boundaries closed to porosities. The structural observation confirmed increased fraction of hexagonal shaped grains, and poorer mechanical properties with increased sintering time and temperature.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Bone Tissue Engineering Materials · Additive Manufacturing and 3D Printing Technologies · biodegradable polymer synthesis and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Heimann · 2010
2. Current progress in inorganic artificial biomaterials10.1007/s10047-011-0585-5 ↗
3. Kokubo · 2008
4. Bioceramics of calcium orthophosphates10.1016/j.biomaterials.2009.11.050 ↗
5. Microstructure, mechanical properties, and in vitro biocompatibility of spark plasma sintered hydroxyapatite–aluminum oxide–carbon nanotube composite10.1016/j.msec.2010.06.009 ↗
6. A new hydroxyapatite-based biocomposite for bone replacement10.1016/j.msec.2012.11.038 ↗
7. Dehydroxylation of hydroxyapatite in dense bulk ceramics sintered by spark plasma sintering10.1016/j.jeurceramsoc.2012.02.025 ↗
8. Spark plasma sintering of hydroxyapatite powders10.1016/S0142-9612(01)00076-X ↗
9. Synthesis of biomimetic Ca-hydroxyapatite powders at 37 degrees C in synthetic body fluids10.1016/S0142-9612(00)00019-3 ↗
10. Hydroxyapatite/titania nanocomposites derived by combining high-energy ball milling with spark plasma sintering processes10.1016/j.jeurceramsoc.2008.05.016 ↗
11. Biomimetic apatite sintered at very low temperature by spark plasma sintering: physico-chemistry and microstructure aspects10.1016/j.actbio.2009.08.021 ↗
12. Synthesis of hydroxyapatite nanopowders via sucrose-templated sol–gel method10.1111/j.1151-2916.2003.tb03423.x ↗
13. Carbon nanotubes/hydroxyapatite nanocomposites fabricated by spark plasma sintering for bonegraft applications10.1016/j.apsusc.2012.04.142 ↗
14. Microstructural characterization of glass-reinforced hydroxyapatite composites10.1016/0142-9612(94)90188-0 ↗
15. C-fibre reinforced hydroxyapatite bioceramics10.1016/S0272-8842(02)00085-8 ↗
16. Development of carbon nanotube-reinforced hydroxyapatite bioceramics10.1016/j.physb.2006.05.254 ↗
17. Preparation and characterization of Al2O3 reinforced hydroxyapatite10.1016/0142-9612(92)90011-C ↗
18. Microstructure and fracture toughness of Si3N4+graphene platelet composites10.1016/j.jeurceramsoc.2012.04.022 ↗
19. The mechanical properties of trabecular bone – dependence on anatomic location and function10.1016/0021-9290(87)90023-6 ↗
20. Recent advances in graphene based polymer composites10.1016/j.progpolymsci.2010.07.005 ↗
21. Graphene-based polymer nanocomposites10.1016/j.polymer.2010.11.042 ↗
22. Nanodynamic mechanical behavior of graphene nanoplatelet-reinforced tantalum carbide10.1016/j.scriptamat.2013.07.030 ↗
23. Spark plasma sintered hydroxyapatite/graphite nanosheet and hydroxyapatite/multiwalled carbon nanotube composites: mechanical and in vitro cellular properties10.1002/adem.201000300 ↗
24. Microstructure and anisotropic mechanical properties of graphene nanoplatelet toughened biphasic calcium phosphate composite10.1016/j.ceramint.2013.03.018 ↗
25. Sintering of calcium phosphate bioceramics10.1016/j.actbio.2012.11.029 ↗
26. Carbon nanotube toughened hydroxyapatite by spark plasma sintering: microstructural evolution and multiscale tribological properties10.1016/j.carbon.2010.04.047 ↗
27. Preparation of calcium–phosphate bioceramics from natural resources10.1016/j.jeurceramsoc.2006.04.016 ↗
28. Influence of processing on fracture toughness of Si3N4+graphene platelet composites10.1016/j.jeurceramsoc.2013.01.025 ↗
29. Preparation and examination of multilayer graphene nanosheets by exfoliation of graphite in high efficient attritor mill10.2478/s11532-010-0137-5 ↗
30. Crystal structure of hydroxyapatite10.1038/2041050a0 ↗
31. Thermal decomposition and reconstitution of hydroxyapatite in air atmosphere10.1016/S0142-9612(99)00076-9 ↗
32. Kinetics of thermal decomposition of hydroxyapatite bioceramics10.1023/A:1004769820545 ↗
33. Nano-hydroxyapatite preparation from biogenic raw materials10.2478/s11532-010-0004-4 ↗
34. Fracture toughness and toughening mechanisms in graphene platelet reinforced Si3N4 composites10.1016/j.scriptamat.2012.02.009 ↗
35. Microstructural and mechanical investigation of hydroxyapatite–zirconia nanocomposites preparad by spark plasma sintering10.1016/j.jeurceramsoc.2013.01.027 ↗
36. Preparation and evaluation of dense hydroxyapatite by PECS method10.4028/www.scientific.net/KEM.240-242.551 ↗
37. Fabrication of transparent hydroxyapatite sintered body with high crystal orientation by pulse electric current sintering10.1111/j.1551-2916.2004.00041.x ↗
38. Formation of tough interlocking microstructures in silicon nitride ceramics by dynamic ripening10.1038/417266a ↗