KR20010001112A - 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법 - Google Patents
중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법 Download PDFInfo
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- KR20010001112A KR20010001112A KR1019990020120A KR19990020120A KR20010001112A KR 20010001112 A KR20010001112 A KR 20010001112A KR 1019990020120 A KR1019990020120 A KR 1019990020120A KR 19990020120 A KR19990020120 A KR 19990020120A KR 20010001112 A KR20010001112 A KR 20010001112A
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
소결 분위기소결 촉진제 | 수증기/수소기체비(1x10-2) | 수증기/수소기체비 (2x10-2) | 수증기/수소기체비(4x10-2) | 비 고 |
0.02wt% Cr2O3+ 0.01wt% SiO2 | 94.5 | 94.5 | 94.0 | |
0.02wt% Cr2O3+ 0.02wt% SiO2 | 94.5 | 94.6 | 94.2 | |
0.02wt% Cr2O3+ 0.03wt% SiO2 | 94.5 | 94.5 | 94.2 | |
0.02wt% Cr2O3+ 0.04wt% SiO2 | 94.5 | 94.5 | 94.1 | |
0.02wt% Cr2O3 | 91.7 | 91.8 | 91.8 | 비교예 |
0.1wt% Cr2O3 | - | 91.6 | 91.5 | 비교예 |
첨가하지 않음 | 90.6 | 90.7 | 90.4 | 비교예 |
소결 분위기소결 촉진제 | 수증기/수소기체비(1x10-2) | 수증기/수소기체비 (2x10-2) | 수증기/수소기체비(4x10-2) | 비 고 |
0.02wt% Cr2O3+ 0.01wt% SiO2 | 6.0 | 6.4 | 6.3 | |
0.02wt% Cr2O3+ 0.03wt% SiO2 | 7.0 | 7.3 | 7.4 | |
0.02wt% Cr2O3+ 0.04wt% SiO2 | 7.1 | 7.3 | 7.5 | |
0.02wt% Cr2O3 | 4.6 | 4.6 | 4.8 | 비교예 |
0.1wt% Cr2O3 | - | 5.3 | 5.5 | 비교예 |
첨가하지 않음 | 4.1 | 4.3 | 4.3 | 비교예 |
소결 분위기소결 촉진제 | 수증기/수소기체비(1x10-2) | 수증기/수소기체비(2x10-2) | 수증기/수소기체비 (4x10-2) | 비 고 |
0.02wt% MgO + 0.02wt% SiO2 | 94.5 | 94.4 | 93.7 | |
첨가하지 않음 | 90.6 | 90.7 | 90.4 | 비교예 |
소결 분위기소결 촉진제 | 수증기/수소기체비(1x10-2) | 수증기/수소기체비(2x10-2) | 수증기/수소기체비 (4x10-2) | 비 고 |
0.02wt% MgO + 0.02wt% SiO2 | 6.7 | 6.8 | 6.7 | |
첨가하지 않음 | 4.1 | 4.3 | 4.3 | 비교예 |
Claims (14)
- 중성자 흡수물질을 함유한 UO2분말의 혼합분말에 소결촉진제를 첨가하여 혼합한후, 혼합분말을 압축성형 하여 성형체를 제조하고, 상기 성형체를 환원성 기체분위기에서 가열하여 1600℃∼1800℃ 온도범위에서 1시간 이상 유지하여 소결함으로써 산화물 핵연료 소결체를 제조하는 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항에 있어서, 상기 UO2분말에 함유된 중성자 흡수물질은 Gd2O3분말인 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항에 있어서, 상기 UO2분말에 함유된 중성자 흡수물질은 Er2O3분말인 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항에 있어서, 상기 소결촉진제는 크롬산화물과 실리콘산화물의 혼합물인 것을 특징으로 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항에 있어서, 소결촉진제는 마그네슘산화물과 실리콘산화물의 혼합물인 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항에 있어서, 상기 소결체는 0.005∼0.025 중량%의 크롬과 0.002∼0.025 중량%의 실리콘을 같이 함유하여 조성되는 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항에 있어서, 상기 소결체는 0.005∼0.020 중량%의 마그네슘과 0.002∼0.025 중량%의 실리콘을 같이 함유하여 조성되는 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항 및 2항의 어느 한항에 있어서, 상기 UO2분말과 Gd2O3분말의 혼합분말 중 Gd2O3분말은 15중량% 이내인 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항 및 3항의 어느 한항에 있어서, UO2분말과 Er2O3분말의 혼합분말 중 Er2O3분말은 3중량% 이내인 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항에 있어서, 상기 환원성 기체는 수소기체인 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항에 있어서, 상기 환원성 기체는 수소기체를 질소, 불활성기체, 이산화탄소, 수증기 중의 하나 이상과 혼합한 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 1항 내지 제 3항의 어느 한항에 있어서, 상기 UO2분말은 UO2분말과 PuO2분말의 혼합물로 대체 가능한 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 4항에 있어서, 크롬산화물과 실리콘산화물은 크롬과 실리콘을 함유하는 1개 이상의 화합물로 대체 가능한 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
- 제 5항에 있어서, 마그네슘산화물과 실리콘산화물은 마그네슘과 실리콘을 함유하는 1개 이상의 화합물로 대체 가능한 것을 특징으로 하는 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법.
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KR1019990020120A KR100331483B1 (ko) | 1999-06-02 | 1999-06-02 | 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법 |
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KR1019990020120A KR100331483B1 (ko) | 1999-06-02 | 1999-06-02 | 중성자 흡수물질을 함유한 산화물 핵연료 소결체의 제조방법 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100922565B1 (ko) * | 2007-10-12 | 2009-10-21 | 한국원자력연구원 | 이중 구조 가연성 흡수 핵연료 소결체 재활용을 위한소결체 분말 분리방법 |
CN104821186A (zh) * | 2015-03-11 | 2015-08-05 | 中国核动力研究设计院 | 一种MgO2掺杂UO2-10wt%Gd2O3可燃毒物及其制备方法 |
KR20180027390A (ko) * | 2017-09-28 | 2018-03-14 | 한전원자력연료 주식회사 | 이중결정립 조직을 갖는 핵연료 소결체의 제조방법 |
KR20180059399A (ko) * | 2018-03-29 | 2018-06-04 | 한국과학기술원 | 국부의 가연성흡수체를 포함하는 핵연료 소결체 |
US20180330832A1 (en) * | 2017-05-09 | 2018-11-15 | Westinghouse Electric Company Llc | Annular nuclear fuel pellets with discrete burnable absorber pins |
US11049625B2 (en) | 2016-11-25 | 2021-06-29 | Korea Advanced Institute Of Science And Technology | Nuclear fuel pellet with central burnable absorber |
US11133115B2 (en) | 2019-10-29 | 2021-09-28 | Korea Advanced Institute Of Science And Technology | Nuclear fuel rod including disk-type burnable absorber |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4869868A (en) * | 1987-11-23 | 1989-09-26 | General Electric Company | Nuclear fuel |
US5242631A (en) * | 1992-01-13 | 1993-09-07 | Westinghouse Electric Corp. | Method for coating nuclear fuel pellets |
JPH06300877A (ja) * | 1993-04-15 | 1994-10-28 | Toshiba Corp | 原子燃料要素 |
TW257869B (ko) * | 1993-09-22 | 1995-09-21 | Siemens Ag |
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1999
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100922565B1 (ko) * | 2007-10-12 | 2009-10-21 | 한국원자력연구원 | 이중 구조 가연성 흡수 핵연료 소결체 재활용을 위한소결체 분말 분리방법 |
CN104821186A (zh) * | 2015-03-11 | 2015-08-05 | 中国核动力研究设计院 | 一种MgO2掺杂UO2-10wt%Gd2O3可燃毒物及其制备方法 |
US11049625B2 (en) | 2016-11-25 | 2021-06-29 | Korea Advanced Institute Of Science And Technology | Nuclear fuel pellet with central burnable absorber |
US20180330832A1 (en) * | 2017-05-09 | 2018-11-15 | Westinghouse Electric Company Llc | Annular nuclear fuel pellets with discrete burnable absorber pins |
US11367537B2 (en) * | 2017-05-09 | 2022-06-21 | Westinghouse Electric Company Llc | Annular nuclear fuel pellets with central burnable absorber |
KR20180027390A (ko) * | 2017-09-28 | 2018-03-14 | 한전원자력연료 주식회사 | 이중결정립 조직을 갖는 핵연료 소결체의 제조방법 |
KR20180059399A (ko) * | 2018-03-29 | 2018-06-04 | 한국과학기술원 | 국부의 가연성흡수체를 포함하는 핵연료 소결체 |
US11133115B2 (en) | 2019-10-29 | 2021-09-28 | Korea Advanced Institute Of Science And Technology | Nuclear fuel rod including disk-type burnable absorber |
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