Journal
ADDITIVE MANUFACTURING
Volume 31, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.addma.2019.100959
Keywords
Powder bed fusion; SLM; Additive manufacturing; Alumina toughened zirconia; Ceramic-ceramic composite
Funding
- Swiss Innovation Agency Innosuisse [26239]
- Swiss National Science Foundation under the SNF [206021-164024]
- Swiss National Science Foundation (SNF) [206021_164024] Funding Source: Swiss National Science Foundation (SNF)
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Alumina toughened zirconia (ATZ) parts were produced via a laser-based powder bed fusion technology using a conventional Nd-YAG continuous wave laser. The powder was produced using a spray drying process and the laser matter interaction was enhanced by a binder pyrolysis. A processing window led to part densities of over 90 %. Thermal post-processing to further increase the part density was investigated using dilatometry. The microstructure was analysed using X-ray powder diffraction measurements. The mechanical properties were assessed using a four-point bending test on ten specimens, reaching a bending strength of 31 +/- 11 MPa.
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