METHODS AND COMPOSITIONS FOR THE PREPARATION OF POWDERS FOR BINDER-BASED THREE-DIMENSIONAL ADDITIVE METAL MANUFACTURING
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United States of America Patent
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Aug 26, 2021
app pub date -
Jun 20, 2019
filing date -
Jun 20, 2018
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Abstract
Devices, systems, and methods are directed to coated powder for three dimensional additive manufacturing. The powder may include a first material coated with a second material, with the coating advantageously resisting segregation of the first material and the second material during handling processes associated with fabrication. The reduced segregation of the first material and the second material may facilitate forming finished three-dimensional parts with improved homogeneity of microstructures and, thus, improved physicochemical properties. More generally, the reduced segregation of the first material and the second material achievable through coating the first material with the second material may facilitate binder jet fabrication using a wider array of combinations of first material and second material as compared to binder jet fabrication using mixtures of constituent powders of the first material and the second material.
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