Abstract: A honeycomb structure body, which includes a honeycomb body and a skin layer, the honeycomb body including axially extending channels defined by a porous wall, wherein a radial path of a radial section of the honeycomb body from a central axis to the skin layer consists of a porous wall inner section and a porous wall outer section in sequence, an average wall thickness of inner porous walls provided in the porous wall inner section is smaller than an average wall thickness of outer porous walls provided in the porous wall outer section, and a length of the porous wall inner section in the radial path accounts for 71%-95%. The specific structure of the honeycomb structure body not only increases the strength of the honeycomb structure body, but also ensures good thermal shock resistance and small back pressure.

Abstract: Disclosed are a cerium-zirconium solid solution and a preparation method therefor and an application thereof, which belong to the field of adsorbing catalyst materials. The cerium-zirconium solid solution includes a cerium-zirconium solid solution phase with a Ce3+/Ce4+ molar ratio of 0.05-0.8:1. The cerium-zirconium solid solution phase in the cerium-zirconium solid solution of the present application includes trivalent cerium ions and tetravalent cerium ions in a specific ratio. The cerium-zirconium solid solution has a high oxygen storage and release rate, a high oxygen storage and release capacity, and the cerium-zirconium solid solution during the storage and release of oxygen has a stable structure and good catalytic performance; and the catalyst containing the cerium-zirconium solid solution has good catalytic performance under different fuel ratios.

Abstract: A thermal shock resistant and asymmetric honeycomb ceramic wall-flow filter includes an inlet honeycomb ceramic surface and an outlet honeycomb ceramic surface. Inlet channels and outlet channels are provided on both the inlet honeycomb ceramic surface and the outlet honeycomb ceramic surface. The inlet channels are in communication with the outlet channels. Outlet ends of the inlet channels and inlet ends of the outlet channels are sealed. An inner diameter of the inlet channel is greater than that of the outlet channel. A cross-section of the inlet channel is a square, or two adjacent edges are connected by two connecting lines, or two adjacent edges are connected by two connecting lines or a circular arc located between the two connecting lines. The filter has good mechanical properties, low back pressure, and excellent thermal shock resistance.

Abstract: A red zirconium-oxide sintered body includes oxide of cerium, auxiliary metal oxide and oxide of zirconium, wherein the auxiliary metal oxide includes any one or a combination of at least two of oxide of yttrium, oxide of magnesium, oxide of calcium and oxide of ytterbium; the red zirconium-oxide sintered body satisfies conditions that the oxide of cerium has a content of 0.2˜1.5 mol %; the oxide of cerium comprises trivalent cerium oxide; a sum of contents of the oxide of cerium and the auxiliary metal oxide is 1.1˜2.5 mol %; and the sintered body has fracture toughness?8 MPa·m1/2. The zirconium-oxide sintered body has red appearance and toughness more than 8 MPa·m1/2, and can be used for products such as mobile phone backboards, ornaments and dial plates.

Abstract: A thermal shock resistant and asymmetric honeycomb ceramic wall-flow filter, comprising: an inlet honeycomb ceramic surface and an outlet honeycomb ceramic surface. Inlet channels (1) and outlet channels (2) are provided on both the inlet honeycomb ceramic surface and the outlet honeycomb ceramic surface. The inlet channels (1) are in communication with the outlet channels (2). Outlet ends of the inlet channels (1) and inlet ends of the outlet channels (2) are sealed. An inner diameter of the inlet channel (1) is greater than that of the outlet channel (2). A cross-section of the inlet channel (1) is a square, and is provided with a fillet, or two adjacent edges are connected by two connecting lines, or two adjacent edges are connected by two connecting lines or a circular arc located between the two connecting lines. A cross-section of the outlet channel (2) is a square, and is also provided with a fillet or a chamfer.

Abstract: Provided is a high-light transmittance zirconia sintered body, prepared by processing and forming a material for the high-light transmittance zirconia sintered body, and then performing high-temperature sintering in the atmosphere under normal pressure. The material for a high-light transmittance zirconia sintered body is prepared from zirconia powder and ?-aluminum oxide as raw materials, wherein the molar percentage of yttrium oxide in the zirconia powder is 4-6%. The high-light transmittance zirconia sintered body can be used for preparing a fixed dental prosthesis. The zirconia sintered body has a grain size of 0.1-0.7 ?m, and due to the dispersion and toughening by aluminum oxide, the zirconia sintered body has a higher strength and toughness. Pores in the zirconia powder can be eliminated by adding aluminum oxide. The zirconia sintered body has a higher light transmittance, and the prepared dentures are good in texture, good in jade-like appearance, and closer to the human teeth.

Abstract: A black zirconia sintered body is obtained by processing and forming a powder for the black zirconia sintered body, and then sintering the same at a high temperature and normal pressure in the atmosphere. The powder for the black zirconia sintered body is prepared by a hydrothermal synthesis method using a soluble zirconium salt, a soluble yttrium salt and a color former as raw materials, wherein the molar ratio of the soluble zirconium salt, the soluble yttrium salt and the color former is 90-95:1-5:1-9. The black zirconia sintered body can be used in ceramic processes.

Abstract: Provided is a light-transmissive zirconia sintered body, obtained by preparing a green body from a powder for the light-transmissive zirconia sintered body by means of isostatic pressing, and sintering the green body at a high temperature and normal pressure after degreasing and biscuit firing. The light-transmissive zirconia sintered body is prepared by dispersing zirconia powder in water, adding an appropriate amount of a dispersant and a binder, mixing the mixture to form a slurry, and spray-granulating same, wherein the molar percentage of yttrium oxide in the zirconia powder is 3-5%. The light-transmissive zirconia sintered body can be used for preparing a fixed dental prosthesis.

Abstract: Provided is a high-light transmittance zirconia sintered body, prepared by processing and forming a material for the high-light transmittance zirconia sintered body, and then performing high-temperature sintering in the atmosphere under normal pressure. The material for a high-light transmittance zirconia sintered body is prepared from zirconia powder and ?-aluminum oxide as raw materials, wherein the molar percentage of yttrium oxide in the zirconia powder is 4-6%. The high-light transmittance zirconia sintered body can be used for preparing a fixed dental prosthesis. The zirconia sintered body has a grain size of 0.1-0.7 ?m, and due to the dispersion and toughening by aluminum oxide, the zirconia sintered body has a higher strength and toughness. Pores in the zirconia powder can be eliminated by adding aluminum oxide. The zirconia sintered body has a higher light transmittance, and the prepared dentures are good in texture, good in jade-like appearance, and closer to the human teeth.