Characterization and synthesis of hardystonite (HT) as a novel nanobioceramic powder

Document Type : Research Paper


Advanced Materials Research Center, Faculty of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran


Objective(s): Hardystonite (HT) has been successfully prepared by a modified sol-gel method. We hypothesized that
nano-sized (HT) would mimic more efficiently the nanocrystal structure and function of natural bone apatite, owing to the higher surface area, compare to conventional micron-size (HT).
Materials and Methods: The hardystonite nanopowder was prepared via a modified sol-gel method.Optimization in calcination temperature and mechanicalball milling resulted in a pure and nano-sized powder which characterized by means of scanning electron microscopy(SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM) and fourier transform infrared Spectroscopy
Results: Pure (HT) powders were successfully obtained via a simple sol-gel method followed by calcination at1150 °C. Mechanical grinding in a ceramic ball mill for 6 hours resulted in (HT) nanoparticles in the range of about 32-55nm.
Conclusion: Our study suggested that nanohardystonite (NHT) might be a potential candidate by itself as a nanobioceramic filling powder or in combination with other biomaterials as a composite scaffold in bone tissue regeneration.


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