Investigation of laser sintering for freeform fabrication of zirconium diboride parts

@article{Leu2012InvestigationOL,
  title={Investigation of laser sintering for freeform fabrication of zirconium diboride parts},
  author={Ming C. Leu and Shashwatashish Pattnaik and Gregory E. Hilmas},
  journal={Virtual and Physical Prototyping},
  year={2012},
  volume={7},
  pages={25 - 36}
}
This paper presents a study wherein the Laser Sintering (LS) process is used to perform additive manufacturing of zirconium diboride (ZrB2) parts. Experiments were conducted to determine values of LS process parameters (laser power, scan speed, energy density, line spacing, and layer thickness) that can be used to improve building of ZrB2 parts. A sacrificial plate with a proper number of layers was first constructed in order to reduce thermal gradients in building the main part. The… 
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TLDR
Results show that the composite powder material has good laser absorptivity at wavelengths of lower than 500 nm and the shape, size, phase composition, distribution and flowability of the polymer-ceramic composite powder were investigated in detail.
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