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  1 - The role of mechanical energy to thermal synthesis of nanostructur (crystals) Beta-tricalcium phosphate Powder (β-TCP)
  Niosha Rafiaei Ebrahim Karamian
  In this Research, the mechanical activation process and thermal synthesis of solid-state method with the aim of optimize thermal energy are used for the preparation of nanostructured powder of beta-tricalcium phosphate (β-TCP). The process of mechanical activation More

  In this Research, the mechanical activation process and thermal synthesis of solid-state method with the aim of optimize thermal energy are used for the preparation of nanostructured powder of beta-tricalcium phosphate (β-TCP). The process of mechanical activation on calcite and phosphorus Panta-oxide powders, 67 wt. % and 33 wt. % respectively are used in planetary ball mill for 10 hours. Next, the activated powder for thermal synthesis, is heated in two different temperatures, 900 ° C and 1000 ° C for 2 hours in furnace. Also, a sample of the raw materials that listed without mechanical activation process heated at 900 ° C for 2 hours. Samples structures are characterized by studies of XRD and SEM. for elemental analysis of Beta-tricalcium phosphate powder XRF method is used. To evaluate crystallite size (crystals), modified Scherrer method is used. Structural studies showed that activated samples at both temperature leading to formation of beta-tricalcium phosphate phase. Crystal size of samples are reported in a range of 40 to 70 nm. The result showed that energy transferred to the starting materials (11.2 MJ/g), causes the materials to be mechanically activated and leads to synthesis temperature reduces to 900 ˚C. Manuscript profile