Control of Porosity in Freeze Casting
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Fecha
2020-01-01
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J O M Institute
Resumen
Many biologic structural materials have porous microstructures with a distribution and orientation of pores that are challenging to achieve using traditional methods of processing. In this investigation, numerical and experimental methods of evaluation were used to understand effects from the primary processing parameters on the temperature gradients during solidification in freeze casting of ceramics. The location and orientation of the temperature gradients were found to be highly dependent on the geometrical and thermal properties of the mold material used in processing. Furthermore, it was found that careful control of these processing variables can be used to design bioinspired porous materials with graded orientations and distributions of pores. © 2020, The Minerals, Metals & Materials Society.
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Palabras clave
Porous materials, Thermal gradients, Freeze Casting, Mold materials, Numerical and experimental methods, Porous microstructure, Primary processing, Processing variables, Numerical methods