Patent classifications
C04B35/465
BATCH COMPOSITIONS COMPRISING PRE-REACTED INORGANIC PARTICLES AND METHODS OF MANUFACTURE OF GREEN BODIES THEREFROM
Batch compositions containing pre-reacted inorganic spheroidal particles, small amount of fine inorganic particles (“fines”), and an extremely large amount of liquid vehicle. The batch compositions contain pre-reacted inorganic particles having a particle size distribution with 20 μm≤D50≤100 μm, D90≤100 μm, and D5≥10 μm; less than 20 wt % of fine inorganic particles (fines) whose particle distribution(s) have a median diameter of less than 5 μm; and a liquid vehicle in a weight percent (LV %≥28%) by super-addition to all inorganic particles in the batch composition. Fast extruding batch compositions having extremely high Tau Y/Beta ratios are provided. Green bodies, such as green honeycomb bodies and methods of manufacturing green honeycomb bodies are provided, as are other aspects.
Annealing separating agent composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for manufacturing grain oriented electrical steel sheet
Provided is an annealing separating agent composition for a grain-oriented electrical steel sheet, a grain-oriented electrical steel sheet and a method for manufacturing a grain-oriented electrical steel sheet. The annealing separating agent composition for a grain-oriented electrical steel sheet according to an embodiment of the present invention contains 30 to 70% by weight of a calcium compound, and the remainder of magnesium oxide or magnesium hydroxide on a solid basis.
Annealing separating agent composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for manufacturing grain oriented electrical steel sheet
Provided is an annealing separating agent composition for a grain-oriented electrical steel sheet, a grain-oriented electrical steel sheet and a method for manufacturing a grain-oriented electrical steel sheet. The annealing separating agent composition for a grain-oriented electrical steel sheet according to an embodiment of the present invention contains 30 to 70% by weight of a calcium compound, and the remainder of magnesium oxide or magnesium hydroxide on a solid basis.
ELECTRONIC COMPONENT
A multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrode layers laminated alternately on each other, and external electrode layers provided on opposing end surfaces of the multilayer body in a length direction orthogonal or substantially orthogonal to a lamination direction, and each connected with the internal electrode layers, in which the dielectric layers each include at least one of Ca, Zr, or Ti, the internal electrode layers each include Cu, and when a dimension in the lamination direction of the multilayer body is defined as T0, a dimension in the length direction of the multilayer body is defined as L0, and a dimension in a width direction orthogonal or substantially orthogonal to the lamination direction and the length direction is defined as W0, a relationship of L0<W0<T0 is satisfied.
GARNET-LITHIUM TITANATE COMPOSITE ELECTROLYTE
A sintered composite ceramic includes: a lithium-garnet major phase; and a lithium-rich minor phase, such that the lithium-rich minor phase has Li.sub.xTiO.sub.(x+4)/2, with 0.66≤x≤4. The sintered composite ceramic may exhibit a relative density of at least 90% of a theoretical maximum density of the ceramic, an ionic conductivity of at least 0.35 mS.Math.cm.sup.−1, or a critical current density (CCD) of at least 1.0 mA.Math.cm.sup.−2.
GARNET-LITHIUM TITANATE COMPOSITE ELECTROLYTE
A sintered composite ceramic includes: a lithium-garnet major phase; and a lithium-rich minor phase, such that the lithium-rich minor phase has Li.sub.xTiO.sub.(x+4)/2, with 0.66≤x≤4. The sintered composite ceramic may exhibit a relative density of at least 90% of a theoretical maximum density of the ceramic, an ionic conductivity of at least 0.35 mS.Math.cm.sup.−1, or a critical current density (CCD) of at least 1.0 mA.Math.cm.sup.−2.
SINTERED FRICTION MATERIAL AND METHOD FOR PRODUCING SINTERED FRICTION MATERIAL
A sintered friction material, in which a content of a copper component is 0.5 mass % or less, is provided. The sintered friction material includes a titanate and a metal material other than copper, as a matrix. A content of the metal material other than copper is 10.0 volume % to 34.0 volume %. A method for manufacturing a sintered friction material is provided. The method includes a mixing step of mixing raw materials containing a titanate and a metal material other than copper, a molding step of molding the raw materials mixed in the mixing step, and a sintering step of sintering, at 900° C. to 1300° C., a molded product molded in the molding step. In the sintered friction material, the titanate and the metal material other than copper form a matrix, and a content of the metal material other than copper is 10.0 volume % to 34.0 volume %.
Multi-layer ceramic capacitor and method of manufacturing the same
A multi-layer ceramic capacitor has a structure where the dispersion, nd, of average grain size of the dielectric grains constituting the dielectric layer (a value (D90/D10) obtained by dividing D90 which is a grain size including 90% cumulative abundance of grains by D10 which is a grain size including 10% cumulative abundance of grains) is smaller than 4.
Multi-layer ceramic capacitor and method of manufacturing the same
A multi-layer ceramic capacitor has a structure where the dispersion, nd, of average grain size of the dielectric grains constituting the dielectric layer (a value (D90/D10) obtained by dividing D90 which is a grain size including 90% cumulative abundance of grains by D10 which is a grain size including 10% cumulative abundance of grains) is smaller than 4.
DC bulk conductive ceramic with low RF and microwave loss
A DC conductive, low RF/microwave loss titanium oxide ceramic provides, at room temperature, a bulk DC resistivity of less than 1×10.sup.11 ohm-meters and an RF loss tangent of less than 2×10.sup.−4 at 7.5 GHz and less than 2×10.sup.−5 at 650 MHz. The resistivity is reduced by oxygen vacancies and associated Ti.sup.3+ and/or Ti.sup.4+ centers created by sintering in an atmosphere containing only between 0.01% and 0.1% oxygen. The reduced resistivity prevents DC charge buildup, while the low loss tangent provides good RF/microwave transparency and low losses. The ceramic is suitable for forming RF windows, electron gun cathode insulators, dielectrics, and other components. An exemplary Mg.sub.2TiO.sub.4—MgTiO.sub.3 embodiment includes mixing, grinding, pre-sintering in air, and pressing 99.95% pure MgO and TiO.sub.2 powders, re-sintering in air at 1400° C.-1500° C. to reduce porosity, and sintering at 1350° C.-1450° C. for 4 hours in an 0.05% oxygen and 99.05% nitrogen atmosphere.