A surface-treated ceramic powder includes a plurality of ceramic particles and a surface-treating material. Each of the ceramic particles is at least partially coated by the surface-treating material, wherein the ceramic particles have an average particle diameter ranging from 10 micrometer (m) to 100 m, and the surface-treating material is made of metal, metal oxide or the combination thereof.

A composition of matter and method of forming a radiation shielding member at ambient temperatures in which the composition of matter includes a cold-fired chemically bonded oxide-phosphate ceramic cement matrix; with one or more suitably prepared and distributed radiation shielding materials dispersed in the cold-fired chemically bonded oxide-phosphate ceramic cement matrix.

Embodiments of the present invention provide an osseointegrative implant and related tools, components and fabrication techniques for surgical bone fixation and dental restoration purposes. In one embodiment an all-ceramic single-stage threaded or press-fit implant is provided having finely detailed surface features formed by ceramic injection molding and/or spark plasma sintering of a powder compact or green body comprising finely powdered zirconia. In another embodiment a two-stage threaded implant is provided having an exterior shell or body formed substantially entirely of ceramic and/or CNT-reinforced ceramic composite material. The implant may include one or more frictionally anisotropic bone-engaging surfaces. In another embodiment a densely sintered ceramic implant is provided wherein, prior to sintering, the porous debound green body is exposed to ions and/or particles of silver, gold, titanium, zirconia, YSZ, ?-tricalcium phosphate, hydroxyapatite, carbon, carbon nanotubes, and/or other particles which remain lodged in the implant surface after sintering. Optionally, at least the supragingival portions of an all-ceramic implant are configured to have high translucence in the visible light range. Optionally, at least the bone-engaging portions of an all-ceramic implant are coated with a fused layer of titanium oxide.

A biocompatible material for bone repair is described. The bone repair composition includes a mixture of a type I collagen, a type I collagen-glycosaminoglycan coprecipitate, tricalcium phosphate; and bioactive glass. Methods of using the composition for bone repair, and a kit for the bone repair composition are also described.

Disclosed are embodiments of a multi-phase ceramic material which can have advantageous properties as a thermal barrier coating. In particular, embodiments of the ceramic can have high fracture toughness as well as calcium, magnesium, and aluminum silicate corrosion resistance. The improved properties of the ceramic can make the material applicable as a coating on turbines, such as airplane and industrial turbines.

A method of preparing a porous bone substitute is provided. The method includes preparing a ceramic paste including calcium phosphate-based ceramics, preparing a molded article formed of the ceramic paste based on a 3D rapid prototyping method, drying the molded article, and sintering the dried molded article.

The present invention relates to a method for preparing a ceramic powder from a bone of a bird's beak, a method for preparing biomedical or industrial ceramic materials by using the ceramic powder derived from a bone of a bird's beak, and a biomedical or industrial ceramic material prepared by the method thereof. The use of the present ceramic powder for manufacturing biomedical or industrial ceramic materials is safer than the use of the ceramic powder derived from allogenic bone or xenogeneic bone. In addition, the ceramic powder of the present invention can be prepared on a mass production basis. Furthermore, the ceramic material prepared using the ceramic powder of the present invention is more biocompatible than that prepared using artificially synthetic ceramic.

Additive manufacturing powder contains a core-shell type particle containing a core particle comprising a first binder resin and a filler and a shell present on the surface of the core particle. The shell contains a second binder resin. The powder has a particle size distribution Dv/Dn of 1.5 or less and an average circularity of from 0.800 to 0.980, the average circularity being represented by the following relation:
Average circularity=(a perimeter of a circle having the same area as a projected image of a particle)/(the perimeter of the projected image of the particle)100.

To manufacture the implant a nanopowder of synthetic hydroxyapatite (Hap) is used having a hexagonal structure, average grain size in a range from 3 to 30 nm and the specific surface area greater than 200 m.sup.2/g. First the nanopowder is formed to the desired geometric shape, and then the shape is fixed. In the step of shape information the dried nanopowder is pressed in the mold under the pressure ranging from 50 Mpa to 2 GPa. In the step of fixing the pressed nanopowder at room temperature is subjected to the pressure rising from the ambient value to the peak value selected from a range of 1 to 8 GPa and to a temperature selected from a range of 100 C. to 600 C. for a period of time selected from a range from 30 seconds to 5 minutes. The density of thus produced implant, determined by helium method, is not less than 75% of the theoretical density.

A sinterable and/or fusible ceramic mass is disclosed, having a long-term stable compound of crystalline phases of apatite, wollastonite, titanite and optionally cristobalite, which is stabilized by a glass phase, and a production process therefor. The ceramic mass can be obtained by sintering a mixture comprising at least the constituents SiO.sub.2, CaO, P.sub.2O.sub.5, MgO, CaF.sub.2 and TiO.sub.2, on their own or in combination with at least one alkali oxide, the alkali oxide being chosen from NaO.sub.2 and K.sub.2O. The invention further relates to uses of the sintered material in the form of shaped articles for strengthening, cleaning, roughening or polishing surfaces of medical implants or as a final prosthesis.