(2c) Ceramic Powders in the Laser Sintering Processes
- Conference: World Congress on Particle Technology
- Year: 2018
- Proceeding: 8th World Congress on Particle Technology
- Group: Particle & Bulk Powder Characterization
- Time: Monday, April 23, 2018 - 8:30am-8:45am
In this paper powders with different particle size distributions of ceramics were obtained by mixing a coarser grained powder, with particles in the range between 10 and 100 microns, and a finer grained powder, with particles in the submicron range. The powder composition and the powder laying procedure were studied and optimized in order to obtain specimens with of the desired mechanical properties. The equipment used is a three dimensional laser sintering equipment using a 40W CO2 laser beam purposely built. The density and the mechanical resistance of the specimens are studied as a function of the fines content and of the amount of energy released by the laser beam on the unit surface of the lighted area. A simple model approach is used to estimate the strength of the single sintered contact.
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