A method of forming one or more high temperature co-fired ceramic articles, comprising the steps of:— a) forming a plurality of green compacts, by a process comprising dry pressing a powder comprising ceramic and organic binder to form a green compact; b) disposing a conductor or conductor precursor to at least one surface of at least one of the plurality of green compacts to form at least one patterned green compact; c) assembling the at least one patterned green compact with one or more of the plurality of green compacts or patterned green compacts or both to form a laminated assembly; d) isostatically pressing the laminated assembly to form a pressed laminated assembly; e) firing the pressed laminated assembly at a temperature sufficient to sinter the ceramic layers together.

A method of forming one or more high temperature co-fired ceramic articles, comprising the steps of:— a) forming a plurality of green compacts, by a process comprising dry pressing a powder comprising ceramic and organic binder to form a green compact; b) disposing a conductor or conductor precursor to at least one surface of at least one of the plurality of green compacts to form at least one patterned green compact; c) assembling the at least one patterned green compact with one or more of the plurality of green compacts or patterned green compacts or both to form a laminated assembly; d) isostatically pressing the laminated assembly to form a pressed laminated assembly; e) firing the pressed laminated assembly at a temperature sufficient to sinter the ceramic layers together.

A support substrate 2 is a polycrystalline SiC substrate formed of polycrystalline SiC. Assuming that one of the two sides of the polycrystalline SiC substrate is a first side and that the other side is a second side, a substrate grain size change rate of the polycrystalline SiC substrate, which is a value obtained by dividing a difference between the average value of crystal grain sizes of the polycrystalline SiC on the first side and the average value of crystal grain sizes of the polycrystalline SiC on the second side by a thickness of the polycrystalline SiC substrate, is 0.43% or less. A radius of curvature of the polycrystalline SiC substrate is 142 m or more.

A method of manufacturing pre-formed, customized, ceramic, labial/lingual orthodontic clear aligner attachments (CCAA) by additive manufacturing (AM) may comprise measuring dentition data of a profile of teeth of a patient, based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient's teeth using reverse engineering, and saving the 3D CAD model, designing a 3D CAD structure model for one or more CCAA on various parts of each tooth, importing data related to the 3D CAD CCAA structure model into an AM machine, directly producing the CCAA in the ceramic slurry-based AM machine by layer manufacturing, enabling the provider to deliver patient-specific CCAA's by an indirect bonding method to the patient's teeth to improve the efficacy and retention of the clear aligners.

A baking slurry composition for producing a green sheet of the present invention contains inorganic powder, a polyvinyl alcohol resin, acrylic polymer, and water. The acrylic polymer has a glass transition temperature higher than or equal to 50 C. and lower than or equal to 30 C. and an acid value greater than or equal to 50 mg KOH/g and less than or equal to 200 mg KOH/g. The acrylic polymer has a weight percentage of more than or equal to 0.1 and less than or equal to 5.0 relative to a total solid content of the baking slurry composition.

A baking slurry composition of the present invention contains an amino alcohol compound represented by formula, inorganic powder , a polyvinyl alcohol resin, and water. In the formula,

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R is a hydrogen atom or an alkyl group having a carbon number larger than or equal to 1 and smaller than or equal to 20, and m and n being values satisfying conditions m0, n0, and m+n1.

A green sheet producing binder composition of the present invention is a binder composition for producing a green sheet. The binder composition contains a polyvinyl alcohol resin. The polyvinyl alcohol resin contains at least two kinds of components having degrees of hydrophilicity different from each other.

The present invention relates to a method of forming a 3D ceramic structure by adding a 3D structure with one or more layer(s) of ceramic mixture onto a ceramic substrate. The present invention also relates to a 3D ceramic structure as well as to a green 3D ceramic structure.

A method of manufacturing pre-formed, customized, ceramic, labial/lingual orthodontic clear aligner attachments (CCAA) by additive manufacturing (AM) may comprise measuring dentition data of a profile of teeth of a patient, based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient's teeth using reverse engineering, and saving the 3D CAD model, designing a 3D CAD structure model for one or more CCAA on various parts of each tooth, importing data related to the 3D CAD CCAA structure model into an AM machine, directly producing the CCAA in the ceramic slurry-based AM machine by layer manufacturing, enabling the provider to deliver patient-specific CCAA's by an indirect bonding method to the patient's teeth to improve the efficacy and retention of the clear aligners.

Provided is a powder for forming a three-dimensional object, the powder including: a core material; and a sintering additive, wherein the sintering additive is in a state of being at least partially embedded in the core material.