Patent ID: 11858039
Assignee: WILLIAM MARSH RICE UNIVERSITY
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  C  Y | IPC B

Claim 0:
1. A method for fabricating a multi-material composite structure, the method comprising:
forming a first colloidal ink solution comprising a first material matrix, water, and a rheology modifying agent, wherein the first material matrix comprises iron;
forming a second colloidal ink solution comprising a second material matrix, water, and a rheology modifying agent, wherein the second material matrix comprises copper;
printing, by direct ink writing, a first layer on a substrate using a first printing nozzle carrying the first colloidal ink solution;
printing, by direct ink writing, a second layer on top of the first layer using a second printing nozzle carrying the second colloidal ink solution;
forming a 3D structure by printing, by direct ink writing, a plurality of layers comprising the first layer and the second layer printed in an alternating pattern; and
sintering the 3D structure to form the multi-material composite structure, the multi-material composite structure comprising a copper-iron composite structure.