A method for solid free-form fabrication of a three-dimensional object
includes depositing a particulate blend in a defined region, the
particulate blend including a calcium phosphate source, a reaction
retardant, and a layered double hydroxide, and selectively ink-jetting a
solubilizing binder onto a predetermined volume of the particulate blend
to form a pre-ceramic object in the predetermined volume, wherein the
solubilizing binder includes wetting agents, humectants, pH modifiers,
and surfactants.