Patent ID: 11878346
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 10:
11. A method comprising:
spreading a layer of build material powder selected from the group consisting of a metal, a metal alloy, and a ceramic;
selectively depositing a polymer binder onto a first select area on the spread layer of the build material powder to form a shell of a green body;
selectively depositing a nanoparticle binder having a size ranging from about 1 nm to about 100 nm onto a second select area on the spread layer of build material powder to form a core of the green body consisting of the build powder material, the nanoparticle binder selected from the group consisting of AIN, SiC, Si3N4, WC, Al2O3, AI(OH)3, Fe2O3, Fe3O4, MgO, SiO2, TiO2, Y2O3, ZnO ZrO2, BaCO3, In2O3, SnO2, carbon, magnesium, manganese, aluminum, iron, titanium, niobium, tungsten, chromium, tantalum, cobalt, nickel, vanadium, zirconium, molybdenum, palladium, platinum, copper, silver, gold, cadmium zinc and combinations thereof, and one or more of a pigment, a dye, a solvent, a co-solvent, a surfactant, a biocide, an anti-kogation agent, a viscosity modifier, a buffer, and a stabilizer;
applying energy to form a green body from the spread layer of build material powder, the deposited polymer binder, the deposited nanoparticle binder, and the one or more of a pigment, a dye, a solvent, a co-solvent, a surfactant, a biocide, an anti-kogation agent, a viscosity modifier, a buffer, and a stabilizer; and
applying energy to the green body to form a brown body.