Abstract: The sliding member according to the embodiment includes a silicon nitride sintered body that includes silicon nitride crystal grains and a grain boundary phase, in which a percentage of a number of the silicon nitride crystal grains including dislocation defect portions inside the silicon nitride crystal grains among any 50 of the silicon nitride crystal grains having completely visible contours in a 50 ?m×50 ?m observation region of any cross section or surface of the silicon nitride sintered body is not less than 0% and not more than 10%. The percentage is more preferably not less than 0% and not more than 3%.

Abstract: A glass-ceramic composition includes a first crystalline phase including lithium disilicate; and a second crystalline phase comprising at least one of: zircon, zirconia, apatite, or a combination thereof.

Abstract: A glass composition, a macrocomposite, and methods of forming the macrocomposite including dispersing or immersing a metal in a glass. Preferably, the macrocomposite does not include an organic resin, an adhesive, or a polymer.

Abstract: A decorative item is made of a ceramic material, where ceramic material includes a carbide phase and an oxide phase, the carbide phase being present in a percentage by volume comprised between 50 and 95% and the oxide phase being present in a percentage by volume comprised between 5 and 50%. The decorative item is manufactured by a method of powder metallurgy.

Abstract: A textured glass article includes: a body comprising an aluminosilicate glass comprising greater than or equal to 16 wt % Al2O3 and a Al2O3/SiO2 ratio less than or equal to 0.3, the body having at least a first surface; a plurality of polyhedral surface features extending from the first surface, each of the plurality of polyhedral surface features comprising a base on the first surface, a plurality of facets extending from the first surface, and a surface feature size at the base greater than or equal to 10 ?m and less than or equal to 100 ?m, wherein the plurality of facets of each polyhedral surface feature converge toward one another; and a transmittance haze greater than or equal to 50%.

Abstract: A ceramic electronic component includes a body including a dielectric layer and an internal electrode, and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a plurality of dielectric grains, and at least one of the plurality of dielectric grains has a core-dual shell structure having a core and a dual shell. The dual shell includes a first shell surrounding at least a portion of the core, and a second shell surrounding at least a portion of the first shell, and a concentration of a rare earth element included in the second shell is more than 1.3 times to less than 3.8 times a concentration of a rare earth element included in the first shell.

Abstract: A solid garnet composition includes a bulk composition having a lithium garnet; and a surface composition having a protonated garnet on at least a portion of the exterior surface of the lithium garnet, such that the protonated garnet is uniformly disposed over the at least a portion of the exterior surface of the lithium garnet. A method of making a solid garnet composition includes pre-treating an air sensitive lithium-containing garnet with water to form a uniform protonated garnet surface composition; and contacting the uniform protonated garnet surface composition with an acid to form a porous uniform protonated garnet surface composition.

Abstract: Porous aluminum nitride (AlN) provides a greater surface area and higher permeability, which is especially desirable for advanced functional application. Porous or bulk aluminum nitride is very difficult to manufacture due mainly to its high melting point (e.g., 2200 degrees Celsius). A new processing method synthesizes porous aluminum nitride through a complete transformation from porous aluminum using a remarkably low nitriding or sintering temperature. The manufactured porous aluminum nitride foam can be used for such applications as filters, separators, heat sinks, ballistic armor, electronic packaging, light- and field-emission devices, and highly wear-resistant composites when infiltrated with metal such as aluminum, titanium, or copper.

Abstract: Provided is at least one of a zirconia sintered body and a method for producing the same. The zirconia sintered body can be used in a wide range of applications compared with ceramic joined bodies of the related art that include transparent zirconia. A zirconia sintered body includes a transparent zirconia portion and an opaque zirconia portion, wherein the zirconia sintered body has a biaxial flexural strength of greater than or equal to 300 MPa.

Abstract: Provided is a dielectric body having a high dielectric constant and a change rate of the dielectric constant of 30% or less, in a temperature range from ?50° C. to 350° C. An inorganic substance contains an oxide crystal including A and M (the A being one or more of P, Ge, and V, and the M being one or more of Nb and Ta), in which the dielectric constant is 500 or more. In the inorganic substance, the oxide crystal is one or more of PNb9O25, P2.5Nb18O50, GeNb9O25, GeNb18O47, GeNb19.144O50, VNb9O25, VNb9O24.9, PTa9O25, GeTa9O25, VTa9O25, and solid solutions thereof.

Abstract: An object of the present invention is to provide a negative thermal expansion material having better negative thermal expansion characteristics. The present invention is a negative thermal expansion material, comprising copper vanadium composite oxide powder dissolving Al atoms and represented by the following general formula (1), CuxMyVzOt (1). In general formula (1), M represents a metallic element with an atomic number of 11 or more other than Cu, V, and Al, 1.60?x?2.40, 0.00?y?0.40, 1.70?z?2.30, 6.00?t?9.00, 1.00?x+y?3.00, and a molar number of the Al atoms in terms of atoms>a molar number of M atoms in terms of atoms if an M element is contained.

Abstract: The present invention relates to a technology for the production of porcelain stoneware products, wherein the treatment process allows to re-use recovery materials coming from the treatment of urban waste. In particular, the present invention relates to the production of products for the construction of driveways.

Abstract: Provided are: composite particles having excellent oxidation resistance; and a method for producing composite particles. The composite particles are obtained by forming a composite of TiC and at least one of Zr and Si. In the method for producing composite particles, a titanium oxide powder and at least one of a zirconium oxide powder and a silicon oxide powder are used as raw material powders, and composite particles are produced using a gas phase method.

Abstract: Disclosed is a low temperature co-fired dielectric material with an adjustable dielectric constant, wherein it comprises a zirconia main phase and a silicon-based amorphous filler, a weight ratio of the zirconia main phase to the silicon-based amorphous filler is 40-65:35-60; a weight percentage of SiO2 in the silicon-based amorphous filler is ?50%. The dielectric constant of low temperature co-fired dielectric material can be continuously adjusted in a wide range of 7-12, the dielectric loss can be as low as 0.1% at 1 MHz. The material system can be sintered at 800-900° C. and co-fired with silver electrode. It can be used as the low temperature co-fired dielectric material. The invention also discloses a method for preparing the low temperature co-fired dielectric material with an adjustable dielectric constant.

Abstract: Glass ceramics having SiO2 as main crystal phase and precursors thereof are described which are characterized by very good mechanical and optical properties and in particular can be used as restoration material in dentistry.

Abstract: A reaction-bonded silicon carbide (SiC) body is produced by: providing a preform including ceramic elements and carbon, and one or more surface features; providing a powder which includes diamond particles and carbon; locating the powder in the surface feature(s); and infiltrating the preform and the powder with molten silicon (Si) to form reaction-bonded SiC in the preform, and to form reaction-bonded SiC coatings on the diamond particles. The present disclosure also relates to a device/component which includes: a main body portion and discrete elements located at least partially within the main body portion. The main body portion may include reaction-bonded SiC and Si, but not diamond, while the discrete elements include diamond particles, reaction-bonded SiC coatings surrounding the diamond particles, and Si. According to the present disclosure, diamond may be advantageously located only where it is needed.

Abstract: A ceramic material includes zirconia toughened alumina (ZTA) doped with scandium (Sc) ions. ZTA can be further doped with other metal ions, and the other metal ions include cobalt (Co) ions, chromium (Cr) ions, zinc (Zn) ions, titanium (Ti) ions, manganese (Mn) ions, nickel (Ni) ions, or a combination thereof. The ceramic material can be used as a ceramic object, such as a wire bonding capillary, a heat dissipation plate, a denture tooth, orthopedic implants, direct bonded copper, or a high-temperature co-fired ceramic.

Abstract: An aluminium oxide ceramic material containing the following components: component wt.-% Al2O3 ?95.0 to 99.989 MgO 0.001 to 0.1 Eu, calculated as Eu2O3 ?0.01 to 1.0.

Abstract: A composition for a heat treatment jig includes: alumina at a weight ratio within the range of 5% or more and 25% or less; mullite at a weight ratio within the range of 0% or more and 35% or less; cordierite at a weight ratio within the range of 15% or more and 35% or less; spinel at a weight ratio within the range of 0% or more and 35% or less; and fused silica at a weight ratio within the range of 15% or more and 50% or less. The composition for a heat treatment jig is used for the method of manufacturing a heat treatment jig, such as a heat treatment container.

Abstract: The present invention provides a self-healing ceramic material with reduced porosity and a method for preparing the same. The self-healing ceramic material comprises the following components by volume: 60-85 parts by volume of Al2O3, 10-20 parts by volume of TiN, 10-20 parts by volume of TiSi2, 0.1-1 parts by volume of MgO, and 0.1-1 parts by volume of Y2O3. Wherein, Al2O3 serves as a matrix, TiN and TiSi2 act as repair agents, and MgO and Y2O3 function as sintering aids. The repair function is realized by adding TiN and TiSi2, which have repair capabilities, to the ceramic matrix, enabling the ceramic material to heal cracks. TiN plays the main role of repair function, and TiSi2 assists in the repair and helps reduce the formation of surface pores.