Method of Manufacturing Porous Structures With Controllable and Directionally Tunable Porosity Via Freeze Casting
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United States of America Patent
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Issued Date -
Oct 3, 2024
app pub date -
Mar 31, 2022
filing date -
Mar 31, 2021
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Abstract
A method of manufacturing a porous part includes controlled freeze casting of a slurry. After freezing, a solvent in the slurry is removed by sublimation and the remaining material is sintered to form the porous part. Spatial and temporal control of thermal conditions at the boundary and inside of the mold can be controlled to create parts with controlled porosity, including size, distribution, and directionality of the pores. Porous parts with near-net-shape from ceramics, metals, polymers and other materials and their combinations can be created.
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