JP7455981B2 - 核燃料アセンブリおよびその製造方法 - Google Patents
核燃料アセンブリおよびその製造方法 Download PDFInfo
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- JP7455981B2 JP7455981B2 JP2022542225A JP2022542225A JP7455981B2 JP 7455981 B2 JP7455981 B2 JP 7455981B2 JP 2022542225 A JP2022542225 A JP 2022542225A JP 2022542225 A JP2022542225 A JP 2022542225A JP 7455981 B2 JP7455981 B2 JP 7455981B2
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- uranium
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- 239000003758 nuclear fuel Substances 0.000 title claims description 123
- 238000004519 manufacturing process Methods 0.000 title description 13
- 239000010410 layer Substances 0.000 claims description 159
- 239000011247 coating layer Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 28
- 239000000446 fuel Substances 0.000 claims description 24
- QPXOIGGWJBMJIH-UHFFFAOYSA-N bis(boranylidyne)uranium Chemical compound B#[U]#B QPXOIGGWJBMJIH-UHFFFAOYSA-N 0.000 claims description 20
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 17
- 229910052726 zirconium Inorganic materials 0.000 claims description 17
- 229910052735 hafnium Inorganic materials 0.000 claims description 16
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- 238000000151 deposition Methods 0.000 claims description 14
- 229910052691 Erbium Inorganic materials 0.000 claims description 13
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 13
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 claims description 13
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims description 13
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 12
- 229910001093 Zr alloy Inorganic materials 0.000 claims description 12
- 229910052750 molybdenum Inorganic materials 0.000 claims description 12
- 239000011733 molybdenum Substances 0.000 claims description 12
- 229910001371 Er alloy Inorganic materials 0.000 claims description 11
- 229910000748 Gd alloy Inorganic materials 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 10
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052770 Uranium Inorganic materials 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 claims description 8
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 8
- 229910001029 Hf alloy Inorganic materials 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 229910052790 beryllium Inorganic materials 0.000 claims description 8
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 8
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 8
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 claims description 6
- 229910052778 Plutonium Inorganic materials 0.000 claims description 6
- 229910001066 Pu alloy Inorganic materials 0.000 claims description 6
- 229910001264 Th alloy Inorganic materials 0.000 claims description 6
- 229910052776 Thorium Inorganic materials 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 229910000711 U alloy Inorganic materials 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims description 6
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 claims description 6
- 150000003061 plutonium compounds Chemical class 0.000 claims description 6
- 150000003586 thorium compounds Chemical class 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 150000003671 uranium compounds Chemical class 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 229910000952 Be alloy Inorganic materials 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 229910000599 Cr alloy Inorganic materials 0.000 claims description 5
- 229910001182 Mo alloy Inorganic materials 0.000 claims description 5
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- 229910001080 W alloy Inorganic materials 0.000 claims description 5
- 238000005219 brazing Methods 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 5
- 239000000788 chromium alloy Substances 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 5
- 238000005240 physical vapour deposition Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 239000010937 tungsten Substances 0.000 claims description 5
- ZOXJGFHDIHLPTG-IGMARMGPSA-N boron-11 atom Chemical group [11B] ZOXJGFHDIHLPTG-IGMARMGPSA-N 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 239000008188 pellet Substances 0.000 description 15
- 238000000576 coating method Methods 0.000 description 10
- 238000000429 assembly Methods 0.000 description 8
- 230000000712 assembly Effects 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- WZECUPJJEIXUKY-UHFFFAOYSA-N [O-2].[O-2].[O-2].[U+6] Chemical compound [O-2].[O-2].[O-2].[U+6] WZECUPJJEIXUKY-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- VQCBHWLJZDBHOS-UHFFFAOYSA-N erbium(iii) oxide Chemical compound O=[Er]O[Er]=O VQCBHWLJZDBHOS-UHFFFAOYSA-N 0.000 description 2
- 230000004992 fission Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000439 uranium oxide Inorganic materials 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- OYEHPCDNVJXUIW-FTXFMUIASA-N 239Pu Chemical compound [239Pu] OYEHPCDNVJXUIW-FTXFMUIASA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OYEHPCDNVJXUIW-AHCXROLUSA-N Plutonium-240 Chemical compound [240Pu] OYEHPCDNVJXUIW-AHCXROLUSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910007948 ZrB2 Inorganic materials 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- VWZIXVXBCBBRGP-UHFFFAOYSA-N boron;zirconium Chemical compound B#[Zr]#B VWZIXVXBCBBRGP-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001938 gadolinium oxide Inorganic materials 0.000 description 1
- 229940075613 gadolinium oxide Drugs 0.000 description 1
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- OYEHPCDNVJXUIW-OIOBTWANSA-N plutonium-241 Chemical compound [241Pu] OYEHPCDNVJXUIW-OIOBTWANSA-N 0.000 description 1
- OYEHPCDNVJXUIW-YPZZEJLDSA-N plutonium-242 Chemical compound [242Pu] OYEHPCDNVJXUIW-YPZZEJLDSA-N 0.000 description 1
- OYEHPCDNVJXUIW-IGMARMGPSA-N plutonium-244 Chemical compound [244Pu] OYEHPCDNVJXUIW-IGMARMGPSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000002490 spark plasma sintering Methods 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- ZSLUVFAKFWKJRC-UHFFFAOYSA-N thorium Chemical compound [Th] ZSLUVFAKFWKJRC-UHFFFAOYSA-N 0.000 description 1
- JFALSRSLKYAFGM-AHCXROLUSA-N uranium-234 Chemical compound [234U] JFALSRSLKYAFGM-AHCXROLUSA-N 0.000 description 1
- JFALSRSLKYAFGM-OIOBTWANSA-N uranium-235 Chemical compound [235U] JFALSRSLKYAFGM-OIOBTWANSA-N 0.000 description 1
Classifications
-
- 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
- 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
- G21C3/18—Internal spacers or other non-active material within the casing, e.g. compensating for expansion of fuel rods or for compensating excess reactivity
-
- 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
- G21C3/36—Assemblies of plate-shaped fuel elements or coaxial tubes
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/02—Control of nuclear reaction by using self-regulating properties of reactor materials, e.g. Doppler effect
- G21C7/04—Control of nuclear reaction by using self-regulating properties of reactor materials, e.g. Doppler effect of burnable poisons
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Coating By Spraying Or Casting (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
本発明は、エネルギー省により与えられた政府契約番号NE-0008824に基づく政府支援によりなされた。米国政府は、本発明に一定の権利を有する。
本出願は、2020年1月9日に出願された米国仮特許出願第62/958,964号の優先権を主張する。その内容は、参照により本明細書に組み込まれる。
Claims (20)
- 少なくとも2つの異なる核燃料層のそれぞれに対して少なくとも一部の上に熱伝導層を堆積して、少なくとも2つの少なくとも部分的なコーティング層を生成することと、
前記少なくとも2つのコーティング層を積層することと、
前記少なくとも2つのコーティング層を結合して核燃料アセンブリを形成することと、を備え、
前記少なくとも2つのコーティング層を結合することは、拡散接合、焼結、溶接、ろう付け、溶融、または、これらの組み合わせを備える、方法。 - 前記熱伝導層を堆積することは、物理蒸着、スプレー、機械的接合、溶融、または、これらの組み合わせを備える、請求項1に記載の方法。
- 前記熱伝導層を堆積することは、前記少なくとも2つの核燃料層の第1の核燃料層の第1の側面の少なくとも一部の上に第1の熱伝導層を堆積することと、前記第1の核燃料層の第2の側面の少なくとも一部の上に第2の熱伝導層を堆積することと、を備える、請求項1または2に記載の方法。
- 前記溶融は、マイクロ波加熱、誘導結合加熱、または、これらの組み合わせを備える、請求項1から3のいずれか一項に記載の方法。
- 前記熱伝導層は、チタン、チタン合金、モリブデン、モリブデン合金、タングステン、タングステン合金、ジルコニウム、ジルコニウム合金、ベリリウム、ベリリウム合金、クロム、クロム合金、ホウ化ウラン、または、これらの組み合わせを備える、請求項1から4のいずれか一項に記載の方法。
- 前記熱伝導層は、ジルコニウムを備える、請求項1から5のいずれか一項に記載の方法。
- 前記熱伝導層は、一体型燃料可燃性吸収体を備える、請求項1から6のいずれか一項に記載の方法。
- 前記核燃料層は、ウラン、ウラン合金、ウラン化合物、プルトニウム、プルトニウム合金、プルトニウム化合物、トリウム、トリウム合金、トリウム化合物、または、これらの組み合わせを備える、請求項1から7のいずれか一項に記載の方法。
- 核燃料アセンブリであって、
一緒に結合された少なくとも2つの少なくとも部分的なコーティング層の積層体を備え、
前記コーティング層のそれぞれは、
核燃料層と、
前記核燃料層の少なくとも一部に配置された熱伝導層と、を備え、
隣り合う2つの前記コーティング層は、拡散接合、焼結、溶接、ろう付け、溶融、または、これらの組み合わせにより結合されている、核燃料アセンブリ。 - 前記コーティング層のそれぞれは、前記核燃料層の第1の側面の少なくとも一部に配置された第1の熱伝導層と、前記核燃料層の第2の側面の少なくとも一部に配置された第2の熱伝導層と、を備える、請求項9に記載の核燃料アセンブリ。
- 前記熱伝導層は、チタン、チタン合金、モリブデン、モリブデン合金、タングステン、タングステン合金、ジルコニウム、ジルコニウム合金、ベリリウム、ベリリウム合金、クロム、クロム合金、ホウ化ウラン、または、これらの組み合わせを備える、請求項9または10に記載の核燃料アセンブリ。
- 前記熱伝導層は、ジルコニウムまたはジルコニウム合金を備える、請求項9から11のいずれか一項に記載の核燃料アセンブリ。
- 前記熱伝導層は、ハフニウム、ハフニウム合金、エルビウム、エルビウム合金、ガドリニウム、ガドリニウム合金、または、これらの組み合わせをさらに備える、請求項12に記載の核燃料アセンブリ。
- 前記熱伝導層は、前記熱伝導層全体の0.01重量%~20重量%の範囲の、ハフニウム、ハフニウム合金、エルビウム、エルビウム合金、ガドリニウム、ガドリニウム合金、または、これらの組み合わせを備える、請求項13に記載の核燃料アセンブリ。
- 前記熱伝導層は、二ホウ化ウランを備え、
前記二ホウ化ウランのホウ素内容物において、前記二ホウ化ウラン中の前記ホウ素内容物における全体重量の少なくとも95%がホウ素11である、請求項9に記載の核燃料アセンブリ。 - 前記熱伝導層は、二ホウ化ウランと酸化ベリリウムとの混合物を備える、請求項9から15のいずれか一項に記載の核燃料アセンブリ。
- 前記熱伝導層は、一体型燃料可燃性吸収体(IFBA)を備える、請求項9から16のいずれか一項に記載の核燃料アセンブリ。
- 前記IFBAは、ホウ化物合金、ガドリニウム、ガドリニウム合金、エルビウム、エルビウム合金、ハフニウム、ハフニウム合金、または、これらの組み合わせを備える、請求項17に記載の核燃料アセンブリ。
- 前記IFBAは、ベリリウム、酸化ベリリウム、または、これらの組み合わせを含有する混合物をさらに備える、請求項18に記載の核燃料アセンブリ。
- 前記核燃料層は、ウラン、ウラン合金、ウラン化合物、プルトニウム、プルトニウム合金、プルトニウム化合物、トリウム、トリウム合金、トリウム化合物、または、これらの組み合わせを備える、請求項9から19のいずれか一項に記載の核燃料アセンブリ。
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PCT/US2021/012642 WO2021142220A1 (en) | 2020-01-09 | 2021-01-08 | A nuclear fuel assembly and a method of manufacture thereof |
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WO2007059851A1 (en) | 2005-11-23 | 2007-05-31 | Technische Universität München | Method for producing a fuel element for a nuclear reactor |
WO2019125604A2 (en) | 2017-10-31 | 2019-06-27 | Westinghouse Electric Company Llc | High temperature nuclear fuel system for thermal neutron reactors |
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US3427222A (en) * | 1965-10-15 | 1969-02-11 | Westinghouse Electric Corp | Nuclear fuel elements |
EP0788117A1 (en) * | 1996-01-30 | 1997-08-06 | Siemens Power Corporation | Nuclear fuel pellet |
EP2622607A4 (en) * | 2010-09-27 | 2017-01-11 | Purdue Research Foundation | Ceramic-ceramic composites and process therefor, nuclear fuels formed thereby, and nuclear reactor systems and processes operated therewith |
WO2018060642A1 (fr) * | 2016-09-28 | 2018-04-05 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Composant nucléaire avec revetement de crc amorphe, procédé de fabrication par dli-mocvd et utilisations contre l'oxydation/hydruration |
US11367537B2 (en) * | 2017-05-09 | 2022-06-21 | Westinghouse Electric Company Llc | Annular nuclear fuel pellets with central burnable absorber |
US11139086B2 (en) * | 2017-10-10 | 2021-10-05 | Howe Industries, Llc | Customizable thin plate fuel form and reactor core therefor |
CN109935358A (zh) * | 2017-12-19 | 2019-06-25 | 中国原子能科学研究院 | 一种采用弹簧限定芯块轴向窜动的环形燃料棒 |
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WO2007059851A1 (en) | 2005-11-23 | 2007-05-31 | Technische Universität München | Method for producing a fuel element for a nuclear reactor |
WO2019125604A2 (en) | 2017-10-31 | 2019-06-27 | Westinghouse Electric Company Llc | High temperature nuclear fuel system for thermal neutron reactors |
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