Calcium aluminate cement compositions for solid freeform fabrication
AssigneeHewlett-Packard Development Company, L.P.
InventorsChristopher Oriakhi, Terry M. Lambright
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Abstract
The present invention is drawn toward materials, methods and systems for solid free-form fabrication of three dimensional objects. In one embodiment, a method can comprise a) applying a particulate blend in a layer, wherein the particulate blend includes calcium aluminate particulates and polymeric binder particulates; b) dispensing an aqueous polyol-containing liquid vehicle onto a predetermined area of the particulate blend to form hydrated cement in the predetermined area; c) hardening the hydrated cement; and d) repeating steps a) through c) such that multiple layers of the cement are formed that are bound to one another, thereby forming the three dimensional object.
Claims22
A method for solid free-form fabrication of a three-dimensional object, comprising:
- a) applying a particulate blend in a layer, said particulate blend including calcium aluminate particulates and polymeric binder particulates;
- b) ink-jetting an aqueous polyol-containing liquid vehicle onto an area of the particulate blend to form hydrated cement in the area, wherein the hydrated cement becomes crosslinked;
- c) hardening the hydrated cement;
- and
- d) repeating steps a) through c) such that multiple layers of the cement are formed that are bound to one another, thereby forming the three dimensional object.
A method for solid free-form fabrication of a three-dimensional object, comprising:
- a) applying a particulate blend in a layer, said particulate blend including calcium aluminate particulates and polymeric binder particulates;
- b) ink-jetting an aqueous polyol-containing liquid vehicle onto an area of the particulate blend to form hydrated cement in the area;
- c) hardening the hydrated cement, wherein the step of hardening is accelerated by including a particulate lithium ion source in the particulate blend or a solvated lithium ion source in the liquid vehicle;
- and
- d) repeating steps a) through c) such that multiple layers of the cement are formed that are bound to one another, thereby forming the three dimensional object.
Dependencies are inferred from the claim text.