Synthesis and Characterization of forsterite nanopowder ceramic via mechanical activation

Document Type : Original Research Paper


Biomaterials Dep, University of Toronto



This project investigates the synthesis of single-phase nano crystalline forsterite
powder by mechanical activation with subsequent annealing. To produce
forsterite powder, a mixture of talc and magnesium oxide powders was first milled
by a planetary ball mill, and then annealed at 1000 and 1200 8C for 1 h. The
synthesized powder was characterized by X-ray diffraction (XRD), simultaneous
thermal analysis (STA), scanning electron microscopy (SEM), and atomic
absorption spectrometry (AAS). The initial temperature of forsterite crystallization
was reduced to about 825 8C after 20 h of mechanical activation. The forsterite
powder synthesized by 5 h of mechanical activation with subsequent annealing
at 1000 8C for 1 h had crystallites 40 n min size. The particle size of this sample
was less than 500 nm.