Abstract: A method of manufacturing a composite sintered body includes a step (Step S11) of molding mixed powder in which Al2O3, SiC, and MgO are mixed, into a green body having a predetermined shape and a step (Step S12) of generating a composite sintered body by sintering the green body. Then, in Step S11, the ratio of SiC to the mixed powder is not lower than 4.0 weight percentage and not higher than 13.0 weight percentage. Further, the purity of Al2O3 in Step S11 is not lower than 99.9%. It is thereby possible to suppress the abnormal grain growth of Al2O3 and suitably manufacture a composite sintered body having high relative dielectric constant and withstand voltage, and low tan ?.
Abstract: Provided is an all-solid lithium battery including: a low-angle oriented positive electrode plate that is a lithium complex oxide sintered plate having a porosity of 10 to 50%; a negative electrode plate containing Ti and capable of intercalating and deintercalating lithium ions at 0.4 V or higher (vs. Li/Li+); and a solid electrolyte having a melting point lower than the melting point or pyrolytic temperature of the oriented positive electrode plate or the negative electrode plate, wherein at least 30% of pores in the oriented positive electrode plate is filled with the solid electrolyte in an observation of a cross-section perpendicular to a main face of the oriented positive electrode plate.
Abstract: A composite sintered body contains a silicon phase which is a main phase, a cordierite phase, and an amorphous phase containing Si. Further, the volume resistivity thereof at a room temperature is not lower than 0.1 ?·cm and not higher than 2.5 ?·cm.
Abstract: Provided is an air electrode/separator assembly including a hydroxide ion conductive separator, a catalyst layer including a catalyst for an air electrode, a hydroxide ion conductive material, an electron conductive material, a binder, and a humidity conditioning material and covering one side of the hydroxide ion conductive separator, and a gas diffusion electrode provided on the catalyst layer on a side opposite to the hydroxide ion conductive separator.
Abstract: A heater element for heating a vehicle interior includes: a honeycomb structure comprising: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells each forming a flow path from a first end face to a second end face, the outer peripheral wall and the partition wall comprising a material having a PTC property; and a pair of electrodes provided on the first end face and the second end face. Each of the first end face and the second end face of the honeycomb structure is rectangular. The heater element for heating the vehicle interior further includes a pair of connectors, each of the connectors being connected to the electrode from one short side of each of the first end face and the second end face.
Abstract: A light converging member (10) according to an embodiment of the present invention includes: a recess portion (32) that is used for an optical component (100) with an optical element (14) for emitting light, the recess portion being opposed to the optical element (14) and having a size 0.5 or more times larger than the maximum length of a light emission region in the optical element; and a lens body (30) for converging light having passed through the recess portion (32).
Abstract: A composite sintered body includes a base material that contains Al2O3 as a main component, and an electrode arranged inside or on a surface of the base material. The electrode contains Ru, ZrO2, and Al2O3.
Abstract: A liquid fuel synthesis system includes a liquid fuel synthesis unit and a sweep gas supply unit. The liquid fuel synthesis unit is permeable to a product of a conversion reaction of a raw material gas containing at least hydrogen and carbon dioxide to a liquid fuel. The sweep gas supply unit for supplying a sweep gas for sweeping the product has permeating through the separation membrane to the liquid fuel synthesis unit. The sweep gas contains hydrogen or carbon dioxide as a main component.
Abstract: A zeolite membrane complex includes a porous support and a zeolite membrane formed on the support and composed of ETL-type zeolite. In an X-ray diffraction pattern obtained by X-ray irradiation onto a surface of the zeolite membrane, an intensity of a peak existing in the vicinity of 2?=9.9° and an intensity of a peak existing in the vicinity of 2?=19.8° are each not lower than 0.8 times an intensity of a peak existing in the vicinity of 2?=7.9°.
July 31, 2023
November 23, 2023
NGK INSULATORS, LTD.
Ko KOBAYASHI, Makoto MIYAHARA, Kenichi NODA
Abstract: When the porous ceramic structure contains Co together with Fe or Mn, the Co content is higher than or equal to 0.1 mass % and lower than or equal to 3.0 mass % in terms of Co3O4, and when the porous ceramic structure contains Co without containing Fe and Mn, the Co content is higher than or equal to 0.2 mass % and lower than or equal to 6.0 mass % in terms of Co3O4. The Ce content is higher than or equal to 0.1 mass % and lower than or equal to 10 mass % in terms of CeO2. The Fe/Mn/Co ratio is higher than or equal to 0.8 and lower than or equal to 9.5. The content of the metal oxide particles is higher than or equal to 0.3 mass % and lower than or equal to 8.0 mass %.
Abstract: A composite substrate for an electro-optic element includes: an electro-optic crystal substrate having an electro-optic effect; a support substrate bonded to the electro-optic crystal substrate at least via an amorphous layer; and a low-refractive-index layer located between the electro-optic crystal substrate and the amorphous layer and having a lower refractive index than the electro-optical crystal substrate. The amorphous layer is constituted of one or more elements that constitute a layer or a substrate contacting the amorphous layer from one side and one or more elements that constitute a layer or a substrate contacting the amorphous layer from another side.
Abstract: A gas sensor includes: a sensor element; a plurality of element pads formed on a rear end portion of the sensor element; and a plurality of contact members holding the rear end portion of the sensor element and electrically connected respectively to the plurality of element pads. The plurality of contact members include contact members that each have an outer end surface protruding out from a corresponding one of end surfaces of the sensor element.
Abstract: There is provided a copper alloy bonded body composed of a plurality of members made of an age-hardenable copper alloy, the members diffusion-bonded to one another. The copper alloy bonded body has undergone solution annealing and an aging treatment, the content of beryllium in the age-hardenable copper alloy is 0.7% by weight or less, and (i) a bonding interface between the members has disappeared and/or (ii) a bonding interface between the members remains, and an oxide film at the bonding interface has a thickness of 0 nm or more and 5.0 nm or less.
June 26, 2023
November 9, 2023
KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, NGK INSULATORS, LTD.
Abstract: A honeycomb filter comprising a pillar-shaped honeycomb structure body having a porous partition wall and a plugging portion, wherein a thickness of the partition wall is 0.257 mm or less, a porosity of the partition wall is 52 to 57%, an average pore diameter of the partition wall is 6 to 13 µm, a number per unit area of pores which exist at a surface of the partition wall and which have equivalent circle opening diameters exceeding 3 µm is 800 to 1500 /mm2, an average equivalent circle opening diameter of pores which exist at a surface of the partition wall and which have equivalent circle opening diameters exceeding 3 µm is 8.0 to 12.0 µm, and in a pore diameter distribution of the partition wall, D10 is 2.0 to 5.5 µm, D90 is 13.0 to 25.5 µm, and (Log(D90)-Log(D10))/Log(D50) is 0.84 or less.
Abstract: A membrane heat treatment method includes a process of raising the temperature of a membrane to an intermediate heating temperature (step S21), a process of heating and keeping the membrane at the intermediate heating temperature (step S22), a process of raising the temperature of the membrane to a main heating temperature higher than the intermediate heating temperature (step S23), and the process of heating and keeping the membrane at the main heating temperature (step S24). A first recovery amount R1 that is a difference in permeability of the membrane between after step S22 and before step S21 is 50% or more and 95% or less of a second recovery amount R2 that is a difference in permeability of the membrane between after step S24 and before step S21.
July 14, 2023
November 9, 2023
NGK INSULATORS, LTD.
Aya MIURA, Narumi TOMOKAGE, Azumi OTA, Katsuya SHIMIZU
Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall defining inflow cells includes partition wall parts making up sides of polygon that is sectional shape of each cell, the partition wall parts each having a surface that is a face defining the inflow cell, the partition wall part is either a first partition wall part loaded with the exhaust-gas purifying catalyst on the surface so that a percentage of the area loaded therewith exceeds 10%, or a second partition wall part loaded with the exhaust-gas purifying catalyst so that a percentage of the area loaded therewith is 10% or less, and the partition wall is configured to include one or more the first partition wall parts and one or more the second partition wall parts as the partition wall parts.
Abstract: A wafer placement device includes a wafer placement stage including a wafer electrostatic chuck and a wafer cooling plate, a focus-ring placement stage including a focus-ring electrostatic chuck and a focus-ring cooling plate, and a clamping member arranged around the focus-ring placement stage. The wafer placement stage, the focus-ring placement stage, and the clamping member are separate from one another. A pressing portion of the focus-ring cooling plate presses a wafer cooling plate flange against a mounting plate. The clamping member is fastened to the mounting plate with bolts in a state of pressing a flange against the mounting plate at its flange, thus fixing the wafer placement stage and the focus-ring placement stage to the mounting plate without directly fastening them to the mounting plate.
Abstract: A gas sensor element in which oxidation of electrodes and a heater occurring with continued use is suppressed is provided. The gas sensor element includes a plurality of solid electrolyte layers stacked one over another, and includes an electrochemical cell including a pair of electrodes and a portion of the plurality of solid electrolyte layers existing between the pair of electrodes; a heater part capable of heating the gas sensor element; and a gettering layer located between the plurality of solid electrolyte layers and between the plurality of solid electrolyte layers and each of the pair of electrodes, and gettering impurities in a metal component of the electrodes and the heater part during driving of the gas sensor element.