Patent ID: 9327448
Filing Date: 2016-05-03
CPC Classification: B22F,B29C,Y02P

Claim Text:
1. A method of forming a three-dimensional metallic object, the method comprising: (a) extruding a paste comprising metal oxide particles or non-oxide metal ceramic particles; a polymeric binder; and an organic solvent, through a tip via extrusion-based rapid prototyping, to deposit sequential layers of the paste on a substrate, whereby a three-dimensional metal oxide object or a three-dimensional non-oxide metal ceramic object is formed on the substrate, and (b) exposing the three-dimensional metal oxide object or the three-dimensional non-oxide metal ceramic object to a reducing gas at a temperature and for a period of time sufficient to reduce and to sinter the metal oxide particles or the non-oxide metal ceramic particles, whereby the three-dimensional metallic object is formed, wherein the metal oxide particles and the non-oxide metal ceramic particles are reducible and are reduced by step (b) to form the metal of the three-dimensional metallic object.