Open AccessProduction and Characterization of Commercial Aluminum Powders by a New Nozzle Design and Atomization Unit
Author(s) -
Hakan Gökmeşe
Publication year - 2021
Publication title -
international journal for research in applied science and engineering technology
Language(s) - English
Resource type - Journals
ISSN - 2321-9653
DOI - 10.22214/ijraset.2021.39388
Subject(s) - nozzle , materials science , aluminium , powder metallurgy , particle size , metal powder , metallurgy , aluminium powder , scanning electron microscope , particle (ecology) , bar (unit) , characterization (materials science) , metal , composite material , chemical engineering , sintering , nanotechnology , mechanical engineering , oceanography , physics , meteorology , engineering , geology
A large area cross section of the production of spherical metal powders by gas atomization in the manufacturing method. Powder metal characteristic improves with small powder size. This aim was realized by vertical gas atomization unit, a new a closely-matched nozzle system and manufacture. In the experimental studies, pure aluminium powders which has an important place in the automotive, air and defence industries were produced. In the studies carried out with the Vertical Gas Atomization unit, aluminium was superheated up to 900°C and atomized at different gas pressures (20-30 bar). Scanning electron microscope (SEM) and particle size measuring device were used for the characterization and size measurements of the produced powders, respectively. The average particle size of the finest powder produced with increasing atomization pressure was determined as d50=19.50µm. Aluminium powder shape and morphology was used as spherical and very little satellization was seen. Keywords: Powder Metallurgy, Atomisation, Nozzle, Al powder, Characterisation