Abstract: A defroster and a vehicle are provided. The defroster includes: a housing defining an air outlet; a heating device disposed in the housing; an air blower defining a blowing outlet and disposed in the housing; and an air duct defining a duct inlet and a duct outlet, the air duct being disposed between the blowing outlet and the heating device so that air blown out from the blower outlet enters the air duct via the duct inlet and goes out of the air duct via the duct outlet, then passes through the heating device to exchange heat with the heating device, and is discharged out of the housing via the air outlet, wherein an area of the duct inlet is different from that of the duct outlet.

Abstract: A sealing assembly, a method of preparing the sealing assembly and a battery are provided. The sealing assembly comprises a metal ring having a mounting hole therein; a ceramic ring having a connecting hole therein and disposed in the mounting hole; and a core column disposed in the connecting hole, wherein at least one of an inner circumferential wall surface of the metal ring, an outer circumferential wall surface of the ceramic ring, an inner circumferential wall surface of the ceramic ring and an outer circumferential wall surface of the core column is configured as an inclined surface, and an inclination angle of the inclined surface relative to a vertical plane is about 1 degree to about 45 degrees.

Abstract: A ceramic and a method for preparing a ceramic are provided. The ceramic includes an alumina and an oxygen-containing compound of strontium having a perovskite structure.

Abstract: Embodiments of the present disclosure are directed to a circuit board. The circuit board comprises: an aluminum-based substrate; an alumina layer formed on at least one surface of the aluminum-based substrate; and a circuit layer formed on the alumina layer. The alumina layer comprises alumina and an element selected from a group consisting of chromium, nickel, a rare earth metal, and a combination thereof.

Abstract: A PTC electric heating assembly, an electric heating device and an electric vehicle are provided. The PTC electric heating assembly (2) comprises two electrode plates (23) and a PTC heating module (20) disposed between the two electrode plates (23), and comprising an insulation fixing frame (22) and a plurality of PTC heating elements (21), the insulation fixing frame (22) defining a plurality of fixing units (220) and the PTC heating elements (21) being disposed into the fixing units (220) respectively.

Abstract: An electric heater, and an apparatus, a heating and air conditioning system and a vehicle, each comprising the electric heater, are provided. The electric heater comprises an outer frame; a heating core configured to connect to a power source and disposed within the outer frame; and a sealing-waterproof glue member disposed within the outer frame and configured to encase at least one end of the heating core. The heating core further comprises: a plurality of heat dissipating components and heating components arranged alternately, and each of the heat dissipating component is coupled with a heating component via a thermal conductor. Each of the heating components further comprises a core tube and a positive temperature coefficient thermistor disposed in the core tube.

Abstract: A ceramic and a preparation method therefor are provided. The ceramic includes a zirconia matrix, and an additive dispersed inside and on an outer surface of the zirconia matrix. The additive is an oxide including elements A and B, where A is selected from at least one of Ca, Sr, Ba, Y, and La, and B is selected from at least one of Cr, Mn, Fe, Co, and Ni.

Abstract: The present disclosure provides a metal-ceramic composite structure and a fabrication method thereof. The metal-ceramic composite structure includes a ceramic substrate having a groove on a surface thereof; a metal member filled in the groove, including a main body made of zirconium base alloy, and a reinforcing material dispersed in the main body and selected from at least one of W, Mo, Ni, Cr, stainless steel, WC, TiC, SiC, ZrC, ZrO2, BN, Si3N4, TiN and Al2O3; a luminance value L of the metal member surface is in a range of 36.92-44.07 under a LAB Chroma system.

Abstract: Provided is a ceramic substrate. The ceramic substrate includes a core layer, made of zirconia toughened alumina; and surface layers, symmetrically located on an upper and a lower surfaces of the core layer, made of Al2O3. The core layer has a chemical composition of 0 wt %<ZrO2?40 wt % and 60 wt %?Al2O3<100 wt %. A method for manufacturing the ceramic substrate and a power module including the ceramic substrate are also provided.

Abstract: An LED support assembly and an LED module are provided. The LED support assembly includes: a metal heat sink, a first ceramic substrate and a second ceramic substrate, the metal heat sink defines an upper surface; the first ceramic substrate is adapted to support a LED chip and disposed on the upper surface of the metal heat sink; the second ceramic substrate is adapted to support electrodes of the LED chip and surrounds the first ceramic substrate.

Abstract: A ceramic and a method for preparing a ceramic are provided. The ceramic includes an alumina and an oxygen-containing compound of strontium having a perovskite structure.

Abstract: A positive temperature coefficient heating assembly includes a heating core including a first metal electrode plate, a second metal electrode plate and a plurality of PTC ceramic chips; an insulating layer coated on the heating core; and a metal tube; the PTC ceramic chip includes a positive electrode layer, a negative electrode layer, and a ceramic sintered layer; a plurality of first limit grooves are formed in the first metal electrode plate, a plurality of second limit grooves are formed in the second metal electrode plate, a first end of each of the PTC ceramic chips is embedded in one of the first limit grooves, and a second end of each of the PTC ceramic chips is embedded in one of the second limit grooves.

Abstract: The present disclosure provides a shell, a method of preparing the same and the use of the shell. The shell includes: a base (1) made of ceramic; and a bending part (2) disposed connected with an edge of the base (1) and made of an amorphous alloy.

Abstract: An LED support assembly and an LED module are provided. The LED support assembly includes: a metal heat sink, a first ceramic substrate and a second ceramic substrate, the metal heat sink defines an upper surface; the first ceramic substrate is adapted to support a LED chip and disposed on the upper surface of the metal heat sink; the second ceramic substrate is adapted to support electrodes of the LED chip and surrounds the first ceramic substrate.

Abstract: Embodiments of the present disclosure are directed to a circuit board. The circuit board comprises: an aluminum-based substrate; an alumina layer formed on at least one surface of the aluminum-based substrate; and a circuit layer formed on the alumina layer. The alumina layer comprises alumina and an element selected from a group consisting of chromium, nickel, a rare earth metal, and a combination thereof.

Abstract: A metal-ceramic composite includes a ceramic substrate and a metallic composite. A groove is formed in a surface of the ceramic substrate and the metallic composite is filled in the groove. The metallic composite includes a Zr based alloy-A composite. A includes at least one selected from a group consisting of W, Mo, Ni, Cr, stainless steel, WC, TiC, SiC, ZrC and ZrO2. Based on the total volume of the Zr based alloy-A composite, the content of A is about 30% to about 70% by volume. A method for preparing the metal-ceramic composite is also provided.

Abstract: Embodiments of the present disclosure are directed to a method for forming a pattern on a surface of an insulating substrate and/or a ceramic article. The method comprises: forming a film on at least one surface of the insulating substrate, a material of the film comprising at least one of ZnO, SnO2, TiO2, or a combination thereof; and irradiating at least a part of the film by an energy beam to form the pattern in the film.

Abstract: A defroster and a vehicle are provided. The defroster includes: a housing defining an air outlet; a heating device disposed in the housing; an air blower defining a blowing outlet and disposed in the housing; and an air duct defining a duct inlet and a duct outlet, the air duct being disposed between the blowing outlet and the heating device so that air blown out from the blower outlet enters the air duct via the duct inlet and goes out of the air duct via the duct outlet, then passes through the heating device to exchange heat with the heating device, and is discharged out of the housing via the air outlet, wherein an area of the duct inlet is different from that of the duct outlet.

Abstract: A coating composition, a composite prepared by using the coating composition, and a method for preparing the composite are provided. The coating composition includes a solvent, an adhesive, and a catalyst precursor including at least one chosen from SnO2, ZnSnO3 and ZnTiO3.

Abstract: A PTC electric heating assembly, an electric heating device and an electric vehicle are provided. The PTC electric heating assembly (2) comprises two electrode plates (23) and a PTC heating module (20) disposed between the two electrode plates (23), and comprising an insulation fixing frame (22) and a plurality of PTC heating elements (21), the insulation fixing frame (22) defining a plurality of fixing units (220) and the PTC heating elements (21) being disposed into the fixing units (220) respectively.