Journal
CERAMICS INTERNATIONAL
Volume 49, Issue 23, Pages 39147-39162Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2023.09.255
Keywords
Centrifugal slip casting; Composites; Life cycle assessment
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The Centrifugal Slip Casting method can be used to obtain a finished product from the Al2O3/Ti/Ni system. The content of the metallic phase does not affect the rheological properties, but it does affect the density and grain growth of the composites. The formation of spinel phase is possible using an air atmosphere. The hardness test confirms the gradient microstructure of the composites. Increasing the share of Ti and Ni phases leads to an increase in the environmental footprint of the materials produced.
The performed tests showed that obtaining a finished product from the Al2O3/Ti/Ni system in the shape of a sleeve is possible using the Centrifugal Slip Casting method. A gradient arrangement of the metallic phase characterized the produced samples. The content of the metallic phase did not influence the rheological properties. Research has shown that the density of composites decreases with the increase in the content of the metallic phase. Using an air atmosphere made producing a spinel phase (NiAl2O4) in molded composites possible. The increase in the content of the metallic phase in the slip used to form composites limits the growth of Al2O3 grains. The cross-sectional hardness test confirmed the gradient microstructure of the composites for both series. The life cycle analysis results indicate that the increase in the share of the Ti and Ni phases leads to an increase in the environmental footprint of the materials produced concerning acquiring and processing raw materials.
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