期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 42, 期 5, 页码 2381-2390出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2021.12.042
关键词
Additive manufacturing; Selective laser sintering; Powder bed fusion; Yttrium stabilized zirconia; Titanium carbide
资金
- European Union's Horizon 2020 research and innovation programme under the Marie Skodowska-Curie grant [764935]
This study aimed to process 8 mol.% yttrium stabilized zirconia using powder bed selective laser processing, and successfully identified an optimized set of parameters for manufacturing high-density parts. Challenges and technical aspects observed during the study were also discussed.
This study aimed to process 8 mol.% yttrium stabilized zirconia by powder bed selective laser processing, as well known as selective laser sintering / melting. Titanium carbide was used as absorbance enhancer to a Nd:YAG laser. Titanium carbide was chosen for having the lowest weight / absorbance ratio among four additive options: silicon carbide, carbon black, graphite, and titanium carbide. Several trials were performed using 0,25 wt.% of titanium carbide as absorbance enhancer of 8 mol.% yttrium stabilized zirconia, testing different laser powers, laser speeds, laser strategies, hatch distances and designs. A window of optimized parameters was identified within the study conditions, capable of manufacturing parts with high relative density. In addition, challenges and technical aspects are discussed by analyzing the observed phenomena.
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