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US 10,478,894 B2Granted
Carbon as an aide for ductile nanocellular foam
AssigneeUnited Technologies Corporation
InventorsJose L. Santana, Weina Li, Michael J. Birnkrant
Life of this patent
Estimating the term…
Abstract
A method of fabricating an article includes providing an arrangement of loose nanowires and bonding the loose nanowires in the presence of carbon together into a unitary cellular structure.
Claims13
A process of fabricating an article comprising:
- arranging nanowires into an assembly;
- prior to the bonding, forming the assembly of nanowires into a geometry of an end-use article;
- depositing the assembly of nanowires into a mold;
- compressing said assembly of nanowires in said mold to consolidate said nanowires;
- placing said assembly into a furnace;
- and
- after the compression step, bonding the nanowires together into a unitary cellular structure in the presence of carbon, introducing the carbon by a gas containing carbon into the furnace, wherein said bonding is done in an environment having the gas containing carbon that reacts with the nanowires to alter the composition of the nanowires and the surfaces of the nanowires that are in contact with each other to permanently bond together at nodes, such that cores of the nanowires remain solid and support the unitary cellular structure.
4 more elements
A method of fabricating an article, the method comprising:
- providing a dispersion of nanowires in a first carrier fluid;
- combining the dispersion with a solution including at least one alloy element in a second carrier fluid;
- removing the first carrier fluid and the second carrier fluid to provide an arrangement of dry, loose nanowires including the at least one alloy element;
- prior to the bonding, forming the dry, loose nanowires into a geometry of an end-use article
- depositing the arrangement of nanowires into a mold;
- compressing said arrangement of nanowires in said mold to consolidate said nanowires;
- placing said assembly into a furnace;
- and
- after the compression step, bonding in a furnace in the presence of carbon, the arrangement of nanowires together into a unitary cellular structure, introducing the carbon by a gas containing carbon into the furnace, wherein said bonding is done in an environment having the gas containing carbon that reacts with the nanowires to alter the composition of the nanowires and the surfaces of the nanowires that are in contact with each other to permanently bond together at nodes, such that cores of the nanowires remain solid and support the unitary cellular structure.
6 more elements
Dependencies are inferred from the claim text.