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11. 发明专利

JPH11304998A CERAMIC THERMOELECTRIC CONVERSION ELEMENT, ITS PRODUCTION METHOD AND ITS CONTACTING METHOD 失效
公开(公告)号：JPH11304998A
公开(公告)日：1999-11-05
申请号：JP11663898
申请日：1998-04-27
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： ISHIYAMA SHINTARO , FUKAYA KIYOSHI
IPC分类号： G21H3/00
摘要： PROBLEM TO BE SOLVED: To realize high efficiency thermoelectric conversion generation for a long time without being damaged by radiation, by arranging a ceramic thermoelectric conversion element in a pressure vessel and high temperature pipes of a reactor. SOLUTION: This thermoelectric conversion element is capable of highly efficient thermoelectric conversion even in a high temperature and strong radiation location. It is made of a heat-resistive ceramic material of which electric resistance is 10 Ωcm or less and the electromotive force is a few mV or more and the material is porous having a low heat conductance and a high coefficient of performance Z. P type thermoelectric conversion element is produced by sintering SiC + boron carbide (1 to 100 wt.%) in argon or nitrogen gas environment. N type thermoelectric conversion element is produced by sintering SiC + C (1 to 10 wt.%) or Si (1 to 10 wt.%) in argon or nitrogen gas environment. The thermoelectric conversion element and the lead wire are connected by using Ti group braze.

12. 发明专利

JPH11190787A HEAT RESISTANT DIRECT JOINT STRUCTURE OF HIGH MELTING POINT MATERIAL AND HIGH THERMAL CONDUCTIVITY MATERIAL OR JOINTING METHOD THEREFOR 失效
公开(公告)号：JPH11190787A
公开(公告)日：1999-07-13
申请号：JP36022397
申请日：1997-12-26
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： ISHIYAMA SHINTARO , SAITO SHIGERU , FUKAYA KIYOSHI
IPC分类号： G21B1/11 , B23K20/00 , B23K103/18 , G21B1/00 , G21B1/17
摘要： PROBLEM TO BE SOLVED: To enhance uniformity at joint and joint efficiency by composing the cooling passage of a fusion reactor of a copper alloy having high thermal conductivity and composing a cooling plate of tungsten. SOLUTION: A fusion reactor comprises a vacuum vessel, a coil generating a field for confining a hydrogen isotope plasma and a cooling passage 1 for passing coolant arranged in the vacuum vessel, and a cooling plate having a material facing plasma. A member having the cooling passage 1 is composed of a copper alloy 2 having high thermal conductivity and the cooling plate is composed of tungsten 3 having high melting point. The copper alloy 2 and tungsten 3 are jointed directly through an HIP(high pressure isotropic pressure) joint face 4 without using any brazing material. Direct jointing is performed under temperature of 900-1,100 deg.C by applying a high pressure of 50-200 MP isotropically for 0.15-4 hours.

13. 发明专利

JPH06142894A METHOD FOR CASTING NI-AL ALLOY 失效
公开(公告)号：JPH06142894A
公开(公告)日：1994-05-24
申请号：JP30241292
申请日：1992-11-12
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： ISHIYAMA SHINTARO
IPC分类号： B22D7/00 , B22D7/06 , B22D21/00 , B22D23/06 , B22D27/04
摘要： PURPOSE:To manufacture a structural material of super heat resistant alloy by gradually adding Al after introducing Ar gas into melted Ni in a vacuum and lowering the temp. after heating. CONSTITUTION:A cast material of Ni Al alloy is manufactured. Then the nickel is charged into an ingot case for high temp. After melting the nickel by heating at a fixed temp. raising speed in the vacuum, this molten nickel is held at a fixed temp. for a fixed time. After introducing the argon gas, the aluminum is gradually added into the molten nickel. After melting the aluminum by heating at a fixed temp. raising speed, this alloy is held at fixed temp. for a fixed time. Then this alloy temp. is lowered to the room temp. at a fixed speed. As the ingot case, alumina or calcia crucible is used. By this method, isothermal heat resistant and corrosion resistant structural material can be manufactured.

14. 发明专利

JPH04198065A PRODUCTION OF IMPERMEABLE CARBON FIBER-REINFORCED COMPOSITE MATERIAL 失效
公开(公告)号：JPH04198065A
公开(公告)日：1992-07-17
申请号：JP32333590
申请日：1990-11-28
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： ISHIYAMA SHINTARO
IPC分类号： C04B35/64 , C03C14/00 , C04B35/80 , C04B35/83
摘要： PURPOSE:To obtain an impermeable carbon fiber-reinforced composite material capable of resisting to high temperatures at a low cost in a short time, by placing a preform material comprising carbon fibers and an impregnating material in a capsule, receiving the capsule in a pressure container and subsequently submitting the pressure container to a thermal treatment under a specific condition. CONSTITUTION:A preform comprising carbon fibers and an impregnating material comprising a pitch and/or heat resistant glass are placed in a capsule comprising a heat-resistant material. The capsule is received in a pressure container, pressed with an inert gas, heated to the melting point of the impregnating material, and retained for a constant time. After the pressure and the temperature are lowered, the capsule is gradually heated to the maximum temperature, while the reduced pressure is maintained, followed by holding the capsule at the temperature for a constant time under the reduced pressure. An inert gas is press-charged into the capsule, maintained for a constant time, and subsequently subjected to the release of the inert gas and to the lowering of the pressure to provide the impermeable carbon-reinforced composite material.

15. 发明专利

JP2000321194A FILTER-TESTING DEVICE 失效
公开(公告)号：JP2000321194A
公开(公告)日：2000-11-24
申请号：JP13377199
申请日：1999-05-14
申请人： JAPAN ATOMIC ENERGY RES INST , NIKKISO CO LTD
发明人： ISHIYAMA SHINTARO , FUMISAWA MOTOO , ARAI SUKENOBU
IPC分类号： G01N15/08
摘要： PROBLEM TO BE SOLVED: To obtain a high-temperature gas flow where an ultra-fine particle that is nearly equivalent to that being generated at an actual high-temperature gas furnace is carried. SOLUTION: A high-temperature nitrogen gas of a specific pressure is sprayed to silver being melted by a silver particle generator to allow a silver particle to fly, and the silver particle borne on a nitrogen gas flow is carried to a filter 81 for testing where a filter holder 6 is set and a rear-stage filter 82. In the filter holder 6, the inner diameter of a gas flow passage is gradually increased from the upstream side to the downstream and is throttled to a small diameter near the downstream for generating turbulence in the high-temperature gas flow, and at least a filter 81 for testing is set to the region where the turbulence cannot be extinguished.

16. 发明专利

JPH09264997A METHOD AND CELL FOR DECOMPOSING WATER BY USING GAMMA-RAY ENERGY DRIVEN SEMICONDUCTOR 失效
公开(公告)号：JPH09264997A
公开(公告)日：1997-10-07
申请号：JP9732896
申请日：1996-03-28
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： ISHIYAMA SHINTARO
IPC分类号： G21H5/00 , B01J19/12 , B01J21/06 , C01B3/04
摘要： PROBLEM TO BE SOLVED: To decompose water efficiently by using γrays. SOLUTION: A water decomposing cell 1 is equipped with three sets of basic units placed along the propagating direction of γ rats. Each of the basic units is equipped with a cathode 20, an anode a 30, separator 40, an oxygen recovery component 50 and a hydrogen recovery component 60 which are laid out while being soaked in the water 10. The cathode 20 is constituted of substrates 21, 22 and 23 which carry layers 25 made of particulate TiO2 or SiC of N or P types. The anode 30, a metal electrode made of Pt, is placed in the position facing the cathode 20 across the separator 40. Both electrodes 20 and 30 are electrically connected by an outside circuit including a monitoring ammeter 70. When the decomposition cell 1 is irradiated with γrays from a decommissioned reactor and other, oxygen gas and hydrogen gas, which evolve in the cathode 20 and the anode 30 respectively, are recovered in the oxygen gas recover component 50 and the hydrogen gas recovery component 60. If a B alloy, a Co alloy and a W alloy are used for the substrates 21, 22 and 23 in the order from the side where the γ rays are incident, the regulation of energy and the expansion of the propagating route are carried out step by step along the route of the γ rats to utilize it fully.

17. 发明专利

JPH09129235A LONG LIFE SECONDARY BATTERY WITH DISCHARGE CAPACITY CONTROLLED 失效
公开(公告)号：JPH09129235A
公开(公告)日：1997-05-16
申请号：JP28869295
申请日：1995-11-07
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： ISHIYAMA SHINTARO
IPC分类号： H01M10/05 , H01M4/583 , H01M4/58 , H01M4/02 , H01M4/04 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a secondary battery with high discharge capacity and long life by using meso-phase carbon microbeads irradiated with electron beams in a negative plate. SOLUTION: In a secondary battery having a positive plate and a negative plate through a separator, and an electrolyte filled between the positive plate and the negative plate, capable of controlling internal resistance, meso-phase carbon microbeads (MCMB) irradiated with electron beams is used in the negative plate. The negative electrode of the lithium secondary battery is improved by the simple method, and the secondary battery with long life, stable charge/ discharge characteristic, and capable of controlling discharge capacity is obtained.

18. 发明专利

JPH06138298A MANUFACTURE OF SINTERED SOLIDIFIED BODY CONTAINING CESIUM AND/OR STRONTIUM BEING RADIOISOTOPE AND METHOD FOR USING IT AS LARGE-SCALE RI BATTERY THROUGH PROCESSING 失效
公开(公告)号：JPH06138298A
公开(公告)日：1994-05-20
申请号：JP29299492
申请日：1992-10-30
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： ISHIYAMA SHINTARO
IPC分类号： G21F9/12 , G21F9/16 , G21H3/00
摘要： PURPOSE:To form exothermic elements contained in radioactive substances into solidified bodys by causing cesium and/or strontium to be adsorbed to a crushed inorganic ion exchange resin comprising composite moldenite, zeolite or a mixture of them, and pressing the resin after filtering and drying. CONSTITUTION:Composite moldenite, composite A-zeolite, or TiO2 is crushed using a magnetic ball mill. After crushing, it is made to pass through a sieve of -100 to +50 mesh and adsorbents screened are dried at 250 deg.C and enclosed in a reactor. A solution of high-level radioactive wastes containing cesium and/or strontium is introduced from above the adsorbents. The solution is passed several times to enhance adsorption efficiency. After adsorption, the adsorbents are filtered, dried at 50 deg.C and then heated and held in the temperature range 80 to 250 deg.C for two hours and dewatered and dried. After dewatering the adsorbents are pressure molded at a pressure of 750 to 800kg/cm for five to ten minutes using a rubber press. The molding is sintered in an atmospheric furnace at temperatures around 1200 deg.C.

19. 发明专利

JPH06125118A METHOD OF MANUFACTURING HIGH TEMPERATURE OPERATING HIGH EFFICIENT THERMOELECTRIC TRANSDUCER ELEMENT 失效
公开(公告)号：JPH06125118A
公开(公告)日：1994-05-06
申请号：JP27189792
申请日：1992-10-09
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： ISHIYAMA SHINTARO
IPC分类号： H01L35/14 , H01L35/34 , H01M14/00
摘要： PURPOSE:To form a high temperature operating high efficient thermoelectric transducer by a method wherein a sintered body of the third component added alloy mixed with specific amount of As, P as the third additive during the crushing step of a specific ingot is to be heated for the specific time. CONSTITUTION:A mother alloy manufactured by rough-crushing and mixing granular Si and Ge ingot and then melting down steps is to be further rough- crushed. Next, the third component added alloy is manufactured by adding specific amount of As and P to the mother alloy rough-crushed particles. Next, the third component added alloy is crushed, dried up and sieved to manufacture the particle material for sintering step. Next, this material is to be hot-press sintered. Finally, the P type semiconductor 6 (As as additive) and N type semiconductor 7 (P as additive) with the junction surfaces thereof opposed to each other are sealed in a graphite-made capsule 5 so that P-N junction body for the high temperature operating high efficient thermoelectric transducer may be formed by diffusion-junctioning said semiconductors 6, 7 at the junction temperature of 500-800 deg.C by HIP, junction pressure of 10000-50000kg/cm and heat sustaining time for maximum 48 hours.

20. 发明专利

JPH1161340A LOW NUCLEAR EXOTHERMIC/LOW ACTIVATION MN-CR NON-MAGNETIC STEEL SUPERIOR IN ANTICORROSION AND WELDABILITY 失效
公开(公告)号：JPH1161340A
公开(公告)日：1999-03-05
申请号：JP24190297
申请日：1997-08-22
申请人： JAPAN ATOMIC ENERGY RES INST , JAPAN STEEL WORKS LTD
发明人： ISHIYAMA SHINTARO , FUKAYA KIYOSHI , ETO MOTOKUNI , HATAKEYAMA TAKESHI , SATO IKUO , KUSUHASHI MIKIO , SOKAWA TSUNEHIKO
IPC分类号： G21B1/11 , C22C38/00 , C22C38/38 , G21B1/00 , G21B1/17
摘要： PROBLEM TO BE SOLVED: To obtain the steel that is suitable for use in a ferromagnetic field and corrosive environment and that is superior in corrosion resistance and weldability by specifying the composition made up of C, Si, Mn, Cr, N and Fe and regulating Ni quantity in inevitable impurities. SOLUTION: The superior nonmagnetic steel is obtained by which contains 0.05-0.25 wt.% C, 1.0% or less Si, 10.0-18.0% Mn, 15.0 plus-18.0% Cr, and 0.30% or less N, with the balance essentially consisting of Fe and inevitable impurities, in which Ni content in the inevitable impurities is desirably regulated at 0.2% or less, in which nuclear exothermic and activation are suppressed, with the components satisfying an expression, i.e., A/B>=1.45 (A=24C+21N, B=Cr+0.5Si+0.07Mn-13.2), and in which no δ ferrite is contained. This nonmagnetic steel is provided with the mechanical characteristics, weldability and nonmagnetism equivalent to stainless steel, and also indicative of excellent corrosion resistance in the real environment, so that it is suitable as a material for the vacuum container of a nuclear fusion reactor.

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