Abstract:
PURPOSE:To provide a light emission electrode manufacturing method in which a perovskite electron emission electrode having favorable electron emission characteristics can be manufactured easily and at low cost, and a light emission panel using the same. CONSTITUTION:In a fusing process step S1), three sorts of nitrates of a rare earth nitrate expressed by R(NO3)3.nH2O, and Sr(NO3)2 and Mn(NO3)3.H2O are fused in organic solvent such as ethanol, and after a substrate is immersed in this solution in an immersion process (step S2) to apply the solution to the substrate, excessive solution is eliminated. In a drying process (step S3), this substrate is put in a vacuum container, so it is dried, and preliminary reaction is made in a preliminary reaction process (step S4) at 300 deg.C. In a heating process (step S5), the substrate is put in an electric furnace, so it is heated for 0.5h at about 750 deg.C, and N03, etc., are eliminated from the nitrates in th e solution, thereby perovskite type composite oxide is formed.
Abstract:
PURPOSE:To provide the manufacturing method of an electrode for electron emission with which a perovskite type electron emission electrode having favorable electron emission characteristics can be manufactured at low temperatures and at a low cost. CONSTITUTION:In a fusing process (step S1), three sorts of nitrates of La(NO3)3.nH2O, Sr(NO3)2, and Mn(NO3)3.6H2O as rare earth nitrates are fused in solvent such as water to be ionized, and this solution is dried to be semi-solid in a drying process (step S2). This is then mixed with ethanol or the like to be in a paste-state in a mixing process (step S3), and it is heated for preliminary reaction in a preliminary reaction process (step S4). In a heating process (step S5), it is heated for 0.5h at 750 deg.C for reaction, and it is pressed in a specified form after it becomes powdery in a moulding process (step S6). In a reheating process (step S7), it is heated for 5 hours at 750 deg.c, thereby polycrystalline perovskite type composite oxide can be produced.
Abstract:
PURPOSE:To manufacture an electron emitting electrode composed of perovskite type composite oxide by a simple manufacturing method. CONSTITUTION:An electron emitting electrode 26 has a structure that an La0.5 Sr0.5CoO3 thin film 26b is formed on an Ni substrate 26a. In this case, the La0.5 Sr0.5CoO3 thin film 26b has an excellent electron emitting characteristic though being composed of a material having a structure of an oxygen element defective nonstoichiometric ratio. Thereby, since an oxygen defective may be exist, it can be manufactured by such.a simple manufacturing method as forming the La0.5Sr0.5CoO3 thin film 26b on the Ni substrate 26a by a thermal decomposition method.
Abstract:
PURPOSE:To enable a flat electron emission material to be easily and accurately formed. CONSTITUTION:A flat glass vessel 1 having a hollow section 5 is formed out of a lower glass panel 2, an upper glass panel 3 and side glass panels 4A, 4B, 4C and 4D, and a glass tube 6 for communicating the hollow section 5 with the atmosphere is fitted to the side glass panel 4D. Then, after the hollow section 5 is evacuated via the glass tube 6, the sample powder 7 of an electron emission material is sealed into the section 5 through the tube 6. Then, the section 5 is again evacuated. Thereafter, the glass vessel 1 is clamped with presser plates 8 and 9 of good flatness and subjected to the predetermined gas pressure at temperature higher than the melting point of the vessel 1 by the predetermined degree. The vessel 1 is thereby pressed via the plates 8 and 9. As a result, the vessel 1 softens and the strain thereof is rectified, thereby forming a flat electron emission material having high flatness.
Abstract:
PURPOSE:To provide an electron emitting electrode capable of operating at a low voltage and a flat lamp of low electric power consumption using the same by forming a plurality of projections on the electrode, and applying the electrode to the flaw lamp. CONSTITUTION:A plurality of projections 3 are formed on the surface of an electrode main body 2 in a band-like manner in the width direction in an electron emitting electrode 1. Electric field strength in the projection 3, particularly at the corner thereof becomes large for realizing operation at a low voltage. Moreover, the projection 3 is made of substance having a work function smaller than that constituting the electrode main body 2. As a result, the electric field strength of the projection 3 becomes further large, and a drive voltage becomes further low.
Abstract:
PURPOSE:To provide the zone melt refining method which can refine a substance having high purity at a low cost by a simple work process and a simple equipment. CONSTITUTION:An arc furnace is provided with a horizontal water-cooled hearth 2 and the water-cooled hearth 2 is formed with a long groove 3 on its upper face. in the long groove 3, for instance, in the case a refined material is lanthanum hexaboride (LaB6), sample powder 4 of lanthanum 4a and boron 4b is put therein, and in the upper part of the long groove 3, an arc electrode 5 is arranged so as to be movable in the direction shown by arrow in the figure. By the arc electrode 5, the sample powder 4 in the long groove 3 is heated and melted, moved in the direction shown by the arrow at a prescribed speed, and the sample powder 4 is melted and refined. In the upper part of the water- cooled hearth 2, a small-sized water-cooled hearth 6 on which a getter material 7 is placed is provided, this getter material 7 is melted by a getter electrode 8, and impurities in the arc furnace 1 are removed by a gettering action.
Abstract:
PURPOSE:To form a thin film of uniform thickness which is free from impurities by drying organic solvent solution containing a thin film material in vacuum and by heating it for formation. CONSTITUTION:Solution of concentration of 0.2mol/l to 0.4mol/l is prepared by dissolving Sm(NO3)3.6H2O and Fe(NO3)3.9H2O in ethanol. A substrate 4 composed of quartz glass is set on a holder 5 of a vacuum device and the prepared solution is dropped. While the solution is applied uniformly on the substrate 4 while oscillating the substrate inside a vacuum chamber 1 right and left, ethanol is evaporated to form a thin film. Thereafter, an SmFeO3 thin film is formed on a substrate by heating the substrate by making a temperature of the holder 5 rise. Thereby, it is possible to realize solution of uniform thickness, to evaporate organic solvent at a low temperature, to eliminate impurities caused by heating reaction of organic solvent and to realize a good thin film.
Abstract:
PURPOSE:To reduce the size of a detection part and to offer the inclination detecting device which is easy to handle by charging magnetic fluid in an air core where an exciting coil and a detection coil are situated and utilizing variation in the mutual inductance between both the coils due to the flow of the magnetic fluid. CONSTITUTION:The exciting coil 2 is provided above the ring-shaped empty core 1, the detection coil 3 is wound below so that its right and left numbers of turns are equal, and the magnetic fluid 4 is charged nearby the detection coil 3 on the air core 1. The air core 1 is held at the fixation part 5a of a holding part 5 and when the bottom surface 5c of the base part 5b of the holding part 5 is mounted on an uninclinded surface, the magnetic liquid 4 is all made equal in relative position with the left and right detection coils 3a and 3b. When the bottom surface 5c is mounted on a slanting surface so as to measure the degree of the inclination, the magnetic fluid 4 flows so as to hold the levelness of its surface and shift in relative position with the left and right detection coils 3a and 3b. The inclination can be detected from variation in the mutual inductance between the detection coils 3a and 3b.
Abstract:
PROBLEM TO BE SOLVED: To properly keep the temperature of a reactor body while suppressing the amount of heat transfer to a heat insulating container from the reactor. SOLUTION: The reactor 10 includes a reactor body 11 and the heat insulating container 20 housing the reactor body 11. The heat insulating container 20 has radiation permeating areas 23, 25 permeating radiation in infrared region. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To suppress deterioration of system efficiency in a reaction apparatus equipped with a low-temperature reaction part and a high-temperature reaction part that reacts at a temperature higher than that in the low-temperature reaction part. SOLUTION: The reaction apparatus is equipped with: the low-temperature reaction part; the high-temperature reaction part in which reaction is carried out at a temperature higher than that in the low-temperature reaction part; a coupling part that couples the low-temperature reaction part to the high-temperature reaction part; and a heat conducting member wherein one end can be decoupled from a first position capable of conducting heat to the low-temperature reaction part and the other end is fixed at a second position capable of conducting heat to the high-temperature reaction part. When the temperature in the high-temperature reaction part falls below a prescribed temperature lower than the reaction temperature in the high-temperature reaction part, the one end of the heat conducting member is uncoupled from the first position. When the temperature in the high-temperature reaction part becomes equal to or higher than the prescribed temperature, the one end establishes contact with the first position. COPYRIGHT: (C)2010,JPO&INPIT