Abstract:
An apparatus for separating carbon products from used tires includes a decomposing chamber into which used tires are charged, a nitrogen gas supply device that supplies nitrogen gas into the decomposing chamber, one or more magnetrons that generate microwave of predetermined frequency and one or more phase shifters that removes interference between microwaves generated by the magnetrons, a receiving plate that is adapted to receive carbon black and iron cores generated by the decomposing process, a tire support that is adapted to support used tires, an opening and closing device that opens or closes a door on which used tires are placed, conveyor belt that moves carbon black and iron cores to a desired location after decomposition is complete, and a cooling plate that is provided in an upper portion of the apparatus and cools down gaseous oil that is generated by decomposition by microwave into liquid oil.
Abstract:
A field emitter (10) having improved electron emission properties is provided. Electron-emitting microtip protrusions (14) in an emitter layer (12) are separated from a dielectric layer (18) by an interlayer (16) that prevents substantial mixing of the dielectric (16) and the emitter layer (12) during growth of the dielectric layer (18). A conductive gate electrode layer (20) is deposited on the dielectric layer (18). For carbon-based emitters, aluminum is one of several suitable interlayers between the carbon layer and a silicon dioxide dielectric layer.
Abstract:
An apparatus for separating carbon products from used tires includes a decomposing chamber into which used tires are charged, a nitrogen gas supply device that supplies nitrogen gas into the decomposing chamber, one or more magnetrons that generate microwave of predetermined frequency and one or more phase shifters that removes interference between microwaves generated by the magnetrons, a receiving plate that is adapted to receive carbon black and iron cores generated by the decomposing process, a tire support that is adapted to support used tires, an opening and closing device that opens or closes a door on which used tires are placed, conveyor belt that moves carbon black and iron cores to a desired location after decomposition is complete, and a cooling plate that is provided in an upper portion of the apparatus and cools down gaseous oil that is generated by decomposition by microwave into liquid oil.
Abstract:
A field emission device having emitter tips and a support layer for a gate electrode is provided. Openings in the support layer and the gate layer are sized to provide mechanical support for the gate electrode. Cavities may be formed and mechanically supported by walls between cavities or columns within a cavity. Dielectric layers having openings of different sizes between the emission tips and the gate electrode can decrease leakage current between emitter tips and the gate layer. The emitter tips may comprise a carbon-based material. The device can be formed using processing operations similar to those used in conventional semiconductor device manufacturing.