Provided is an apparatus that includes a molding die for producing a sintered body. The molding die is configured for cold isostatic pressing and includes a knockdown mold frame comprised of plural frame members and a bottom plate provided in contact with the knockdown mold frame. An upper punch is provided to be movable along the inner surface of the knockdown mold frame. The frame members configured to be movable relative to each other to accommodate an expansion of a green body which takes place at the time of reducing the pressure after the completion of pressing.

A production process includes introducing the material to be moulded into a mould, placing the mould in an envelope comprising a vacuum port; creating a low pressure in the envelope by formation of a gas flow through the vacuum port; deforming the mould; stopping the gas flow; and applying pressure on at least a portion of the mould, optionally with interposition of the envelope, at least after the gas flow is stopped.

A method of producing ceramic wafer includes a forming step and processing step. The processing step includes forming positioning notch or positioning, flat edge and edge profile, which avoids the ceramic wafers to have processing defect during cutting, grinding, and polishing, for increasing yield. The ceramic particles for producing ceramic wafer include nitride ceramic powder, oxide ceramic powder, and nitride ceramic powder. The ceramic wafer has low dielectric constant, insulation, and excellent heat dissipation, which can be applied for the need of semiconductor process, producing electric product and semiconductor equipment.

A solid electrolyte contains an internal component and an external component coated on a surface of the internal component. The internal component is represented by a formula Li.sub.1+xM.sub.xZr.sub.2x(PO.sub.4).sub.3, M is one or more elements selected from a group consisting of Al, La, Cr, Ga, Y, and In, and 0.05x0.4. The external component contains a plastic deformable material and has a conductivity of about 10.sup.7 S/cm to about 10.sup.5S/cm. A method of preparing the solid electrolyte and a lithium ion battery including the solid electrolyte are also provided.

A solid electrolyte contains an internal component and an external component coated on a surface of the internal component. The internal component is represented by a formula Li.sub.1+xM.sub.xZr.sub.2x(PO.sub.4).sub.3, M is one or more elements selected from a group consisting of Al, La, Cr, Ga, Y, and In, and 0.05x0.4. The external component contains a plastic deformable material and has a conductivity of about 10.sup.7 S/cm to about 10.sup.5S/cm. A method of preparing the solid electrolyte and a lithium ion battery including the solid electrolyte are also provided.

A method of fabricating a ceramic molded body for sintering, which includes molding a raw material powder containing a ceramic powder and a thermoplastic resin having a glass transition temperature higher than room temperature into a predetermined shape by isostatic pressing and in which a first-stage press-molded body is fabricated by subjecting a uniaxially press-molded body fabricated by uniaxially pressing the raw material powder into a predetermined shape or the raw material powder filled in a rubber die to a first-stage isostatic press molding at a temperature lower than a glass transition temperature of the thermoplastic resin and then a ceramic molded body is fabricated by heating this first-stage press-molded body to a temperature equal to or higher than the glass transition temperature of the thermoplastic resin and performing warm isostatic press molding as second-stage isostatic press molding.

A reward for a decision result of an isostatic pressurization processing condition is calculated based on a state variable including at least one physical quantity related to a workpiece and at least one isostatic pressurization processing condition, a function for deciding at least one isostatic pressurization processing condition from the state variable is updated based on the reward, and updating of the function is repeated to decide an isostatic pressurization processing condition that maximizes the reward. The isostatic pressurization processing condition is at least one of a first parameter related to the workpiece, a second parameter related to a pre-process of the isostatic pressurization processing, and a third parameter related to an operating condition of an isostatic pressurization device, and the at least one physical quantity is at least one of physical quantities related to densification and green compaction of the workpiece.

Methods and systems for additively manufacturing a unitary ceramic part and repairing damaged ceramic parts including additively manufacturing a first ceramic green body having a joint surface and a second ceramic green body having a joint surface, wherein the joint surfaces are configured to be interfaced. The first ceramic green body and the second ceramic green body are sintered to form the unitary part. Additional ceramic green bodies may be connected and sintered to form the unitary part. The ceramic green bodies may have defects or may be damaged. A ceramic sheet may be manufactured and applied to the ceramic green bodies to repair the defects or damage. The ceramic sheet may be sintered with the ceramic green bodies to form the unitary part.

Methods and systems for additively manufacturing a unitary ceramic part and repairing damaged ceramic parts including additively manufacturing a first ceramic green body having a joint surface and a second ceramic green body having a joint surface, wherein the joint surfaces are configured to be interfaced. The first ceramic green body and the second ceramic green body are sintered to form the unitary part. Additional ceramic green bodies may be connected and sintered to form the unitary part. The ceramic green bodies may have defects or may be damaged. A ceramic sheet may be manufactured and applied to the ceramic green bodies to repair the defects or damage. The ceramic sheet may be sintered with the ceramic green bodies to form the unitary part.

The invention relates to a method of manufacturing a ceramic molding, comprising the following steps: a) providing three or more ceramic powder layers that are arranged in layers, one on top of the other, to form a compression-molded element and sintering the compression-molded element obtained in step b) to form a ceramic molding, characterized in that the ceramic powder layers have different compositions, each ceramic powder layer comprising a mixture of at least two different base powders and each base powder containing at least 80 wt. % ZrO.sub.2 and at least 0.02 wt. % Al.sub.2O.sub.3, each weight amount being relative to the total weight of the constituents of the base powder.