Low temperature consolidation of hydroxyapatite-reduced graphene oxide nano-structured powders

作者: Hassan Nosrati , Rasoul Sarraf-Mamoory , Reza Zolfaghari Emameh , Dang Quang Svend Le , Maria Canillas Perez

DOI: 10.1039/D0MA00212G

关键词:

摘要: In this study, hydroxyapatite-reduced graphene oxide (HA-rGO) powders were first synthesized in situ using a hydrothermal method. These then consolidated cold sintering The solvent used method was water + dimethylformamide brushite which added to the at different ratios. sintered samples evaluated X-ray diffraction, Fourier transform infrared spectroscopy, Raman high-resolution transmission electron microscopy, and Vickers microindentation. results of study showed that best conditions for rGO-HA nanopowders temperature 200 °C, holding time >30 min, pressure 500 MPa. mechanical properties achieved when content considered be 20 wt%. Crack deflection bridging among mechanisms increased fracture toughness these nanocomposites. By adding 1.5% rGO, nanocomposite (using method) approximately equivalent spark plasma HA.

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