摘要:
A method for growing a thin film on a substrate (6) of metal or ceramics by beam deposition comprising the steps of: (I) producing from starting gases ions of elements or compounds thereof to be deposited on the substrate (6); (II) irradiating (16) the ions produced in step (I) with electromagnetic waves to electronically excite at least one sort of said ions; and (III) impacting an ion beam comprising the ions excited in step (II) onto said substrate (6) to deposit thereon, thereby growing a film, and an apparatus for practicing the method. The method enables the formation of thin films having a higher crystallinity by electronically exciting ions or neutral species to increase the internal energy thereof and then impacting a beam comprising the excited ions or neutral species onto the substrate (6).
摘要:
When recycling used products, each product is divided (2) into components, each component being of one, or one main, material. The degree of degradation is assessed (5) for at least one of the materials, and recycling is carried out on the basis of that assessment. Normally, the degree of degradation will depend on the type of the material, so it is normally necessary to determine this after the product has been divided into components. In some cases the product may carry a label or other display which gives information about the age of the product, in which case the degree of degradation may be assessed on the basis of that age. Otherwise, the degree of degradation may be determined on the basis of a physical property of the material. Physical properties may also be used to determine the material of each component.
摘要:
An atomizer including a fuel supply passage (5,105,205, 305, 405, 505, 605, 707) for supplying a fuel, an atomizing medium supply passage (7, 107, 207, 307, 407, 507, 607, 705) for supplying an atomizing medium which is to be mixed with the fuel, a mixing chamber (15, 115, 215, 315, 415, 515, 615, 715) in communication with the fuel supply passage and the atomizing medium supply passage, and spray ports (13d, 113d, 213d, 313d, 413d, 513d, 613d, 713d) for spraying the fluid mixture consisting of the fuel and the atomizing medium from the mixing chamber. The fuel supply passage and the atomizing medium supply passages are communicated with the mixing chamber through a pre-mixing chamber (12, 112, 212, 312,412, 512, 612, 712j having an annular cross-section defined by a large-diameter cylindrical (12b, 112b, 212b, 312b, 412b, 512b, 612b, 712b) surface and a small-diameter cylindrical surface (12a, 112a, 212a, 312a, 412a, 512a, 612a, 712a). The fuel and the atomizing medium supplied from the fuel supply passage and the atomizing medium supply passage are pre-mixed the pre-mixing chamber. With this arrangement, it is possible to efficiently mix a slurry fuel and an atomizing medium, thus reducing the particle size of the atomized fuel particles and shortening the flame length. Thus, the atomizer of the invention is indispensable for the boilers which are intended for burning coal-water slurry. The invention makes it possible to form flames with reduced NOx generation and a high burning efficiency through combina- tion between atomizer of the construction described above and a burner having a specific construction.
摘要:
An apparatus is provided for purifying an exhaust gas discharged from an internal combustion engine (8), which comprises a first exhaust gas passage including a nitrogen oxide removing catalyst (14) and a three way catalyst (15), a second exhaust gas passage including the three way catalyst, valve means (16) for selectively directing the exhaust gas to the first and second exhaust gas passages, and means (18) for controlling the valve means so as to direct the exhaust gas to the first exhaust gas passage to thereby pass the exhaust gas through the nitrogen oxide removing catalyst and the three way catalyst in the same order when the temperature of the nitrogen oxide removing catalyst is within a hydrocarbon adsorbing range of temperature thereof while the engine is warming up and to the second exhaust gas passage to thereby pass the exhaust gas through the three way catalyst when the temperature of the nitrogen oxide removing catalyst exceeds the hydrocarbon adsorbing range of temperature thereof.
摘要:
The present invention provides a method for producing a synthetic diamond thin film (2) which comprises decomposing with microwave a raw material gas containing at least one compound selected from the group consisting of carbon monoxide, carbon dioxide and a hydrocarbon and hydrogen or hydrogen and oxygen to produce a plasma and contacting the plasma with the surface of a substrate (1) held outside the area irradiated with the microwave to form a diamond thin film (2) on the substrate (1). The present invention further provides an apparatus for producing a synthetic diamond thin film and a synthetic diamond thin film and devices in which the synthetic diamond thin film is used.
摘要:
The present invention provides a method for producing a synthetic diamond thin film (2) which comprises decomposing with microwave a raw material gas containing at least one compound selected from the group consisting of carbon monoxide, carbon dioxide and a hydrocarbon and hydrogen or hydrogen and oxygen to produce a plasma and contacting the plasma with the surface of a substrate (1) held outside the area irradiated with the microwave to form a diamond thin film (2) on the substrate (1). The present invention further provides an apparatus for producing a synthetic diamond thin film and a synthetic diamond thin film and devices in which the synthetic diamond thin film is used.