CPC C08L 33/02 (2013.01) [B22F 1/10 (2022.01); B22F 1/103 (2022.01); B22F 10/00 (2021.01); B33Y 10/00 (2014.12); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12); B22F 2301/255 (2013.01); C08L 2312/00 (2013.01)] | 17 Claims |
1. A method of additive manufacturing a metal-based composite structure by binder jet printing, the method comprising:
depositing a first layer of metal powder;
depositing a binder composition on at least a portion of the first layer of metal powder, the binder composition comprising:
water,
an adhesion promoter that is a small molecule, the adhesion promoter comprising a thiol group, and
a low molecular weight polymer including an acrylic acid repeat unit, wherein the binder composition has a pH of greater than or equal to 4; and
drying and/or cross-linking at least the binder composition deposited on the first layer of the metal powder, thereby forming a metal-based composite structure.
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