JP2022177239A - 水と蒸気による酸化への高い耐性を有する被膜を施されたU3Si2ペレット - Google Patents
水と蒸気による酸化への高い耐性を有する被膜を施されたU3Si2ペレット Download PDFInfo
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- 239000008188 pellet Substances 0.000 title claims abstract description 28
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- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract description 4
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- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/06—Casings; Jackets
- G21C3/07—Casings; Jackets characterised by their material, e.g. alloys
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
- G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
- G21C3/324—Coats or envelopes for the bundles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/06—Metal silicides
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C21/00—Apparatus or processes specially adapted to the manufacture of reactors or parts thereof
- G21C21/02—Manufacture of fuel elements or breeder elements contained in non-active casings
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/16—Details of the construction within the casing
- G21C3/20—Details of the construction within the casing with coating on fuel or on inside of casing; with non-active interlayer between casing and active material with multiple casings or multiple active layers
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/42—Selection of substances for use as reactor fuel
- G21C3/58—Solid reactor fuel Pellets made of fissile material
- G21C3/62—Ceramic fuel
- G21C3/623—Oxide fuels
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/42—Selection of substances for use as reactor fuel
- G21C3/58—Solid reactor fuel Pellets made of fissile material
- G21C3/62—Ceramic fuel
- G21C3/626—Coated fuel particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
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- G—PHYSICS
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- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/045—Pellets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
Description
本発明は、エネルギー省との契約第DE-NE0008222号に基づく政府支援の下でなされたものである。米国政府は、本発明に対して一定の権利を有している。
Claims (18)
- 核分裂性物質に、当該核分裂性物質と反応しない耐水性層の被膜を施すことにより、被膜付き物質を形成する方法であって、
当該被膜付き物質中の当該核分裂性物質はU3Si2であり、当該被膜は当該核分裂性物質の表面に付着される、方法。 - 前記核分裂性物質はペレット状であり、前記被膜は前記核分裂性物質の表面に施される、請求項1の方法。
- 前記耐水性層は、ZrSiO4、FeCrAl、Cr、Zr、Al-Cr、CrAl、ZrO2、CeO2、TiO2、SiO2、UO2、ZrB2、Na2O-B2O3-SiO2-Al2O3系ガラス、Al2O3、Cr2O3、炭素、SiCおよびそれらの組み合わせから成る群より選択される、請求項1の方法。
- 前記被膜は原子層堆積法で施される、請求項1の方法。
- 前記被膜の厚さは0.5~2ミクロンの範囲内である、請求項4の方法。
- 前記被膜は溶射法によって施される、請求項1の方法。
- 前記溶射法は物理蒸着法である、請求項6の方法。
- 物理蒸着法による前記被膜の厚さは1~20ミクロンの範囲内である、請求項7の方法。
- 前記溶射法はプラズマアーク溶射法である、請求項6の方法。
- 前記被膜の厚さは1~200ミクロンの範囲内である、請求項9の方法。
- 前記溶射法はコールドスプレー法である、請求項6の方法。
- 前記溶射法はホットスプレー法である、請求項6の方法。
- 前記耐水性層を覆う可燃性吸収材の層をさらに具備する、請求項1の方法。
- 前記可燃性吸収材は、ZrB2、B2O3-SiO2系ガラスおよびそれらの組み合わせから成る群より選択される、請求項13の方法。
- 耐水性層の被膜が施された核分裂性物質を具備し、当該耐水性層は当該核分裂性物質とは反応しないものである、原子炉で使用する燃料であって、
当該核分裂性物質はU3Si2であり、当該耐水性層は当該核分裂性物質の表面に付着していることを特徴とする、燃料。 - 前記耐水性層は、ZrSiO4、FeCrAl、Cr、Zr、Al-Cr、CrAl、ZrO2、CeO2、TiO2、SiO2、UO2、ZrB2、Na2O-B2O3-SiO2-Al2O3系ガラス、Al2O3、Cr2O3、炭素、SiCおよびそれらの組み合わせから成る群より選択される、請求項15の燃料。
- 前記耐水性層の上に、原子炉の運転における炉心の反応度を制御するための一体型燃料可燃性吸収材層をさらに具備する、請求項15の燃料。
- 前記吸収材層は、ZrB2、B2O3-SiO2系ガラスおよびそれらの組み合わせから成る群より選択される、請求項17の燃料。
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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US201762472659P | 2017-03-17 | 2017-03-17 | |
US62/472,659 | 2017-03-17 | ||
US15/898,308 | 2018-02-16 | ||
US15/898,308 US10803999B2 (en) | 2017-03-17 | 2018-02-16 | Coated U3Si2 pellets with enhanced water and steam oxidation resistance |
JP2019548646A JP2020511642A (ja) | 2017-03-17 | 2018-02-19 | 水と蒸気による酸化への高い耐性を有する被膜を施されたU3Si2ペレット |
PCT/US2018/018587 WO2018169646A1 (en) | 2017-03-17 | 2018-02-19 | COATED U3Si2 PELLETS WITH ENHANCED WATER AND STEAM OXIDATION RESISTANCE |
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JP2019548646A Division JP2020511642A (ja) | 2017-03-17 | 2018-02-19 | 水と蒸気による酸化への高い耐性を有する被膜を施されたU3Si2ペレット |
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JP2022152997A Pending JP2022177239A (ja) | 2017-03-17 | 2022-09-26 | 水と蒸気による酸化への高い耐性を有する被膜を施されたU3Si2ペレット |
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EP (1) | EP3596736A4 (ja) |
JP (2) | JP2020511642A (ja) |
KR (1) | KR102580168B1 (ja) |
WO (1) | WO2018169646A1 (ja) |
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US11488730B2 (en) | 2017-03-17 | 2022-11-01 | Westinghouse Electric Company Llc | Coated fuel pellets with enhanced water and steam oxidation resistance |
CA3195120A1 (en) * | 2020-10-07 | 2022-04-14 | Peng Xu | Coated fuel pellets with enhanced water and steam oxidation resistance |
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US9437335B2 (en) * | 2013-09-03 | 2016-09-06 | Uchicago Argonne, Llc | Designed porosity materials in nuclear reactor components |
US10593434B2 (en) * | 2014-03-12 | 2020-03-17 | Westinghouse Electric Company Llc | Ceramic reinforced zirconium alloy nuclear fuel cladding with intermediate oxidation resistant layer |
US9721676B2 (en) * | 2014-05-27 | 2017-08-01 | Westinghouse Electric Company, Llc | Deposition of a protective coating including metal-containing and chromium-containing layers on zirconium alloy for nuclear power applications |
US9844923B2 (en) * | 2015-08-14 | 2017-12-19 | Westinghouse Electric Company Llc | Corrosion and wear resistant coating on zirconium alloy cladding |
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2018
- 2018-02-16 US US15/898,308 patent/US10803999B2/en active Active
- 2018-02-19 EP EP18767992.3A patent/EP3596736A4/en active Pending
- 2018-02-19 JP JP2019548646A patent/JP2020511642A/ja active Pending
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US20180268946A1 (en) | 2018-09-20 |
EP3596736A1 (en) | 2020-01-22 |
WO2018169646A1 (en) | 2018-09-20 |
JP2020511642A (ja) | 2020-04-16 |
US10803999B2 (en) | 2020-10-13 |
EP3596736A4 (en) | 2021-01-20 |
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