KR950017849A - 중성자 흡수 복합재료 및 이의 제조방법 - Google Patents

중성자 흡수 복합재료 및 이의 제조방법 Download PDF

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KR950017849A
KR950017849A KR1019940033158A KR19940033158A KR950017849A KR 950017849 A KR950017849 A KR 950017849A KR 1019940033158 A KR1019940033158 A KR 1019940033158A KR 19940033158 A KR19940033158 A KR 19940033158A KR 950017849 A KR950017849 A KR 950017849A
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clusters
sintering
neutron absorbing
secondary component
composite material
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KR1019940033158A
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KR100329471B1 (ko
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데크르와 기이-마르
노엘라끄 다니엘르
샤띨롱 쟈크
프라슬렝 얀
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삐에르 쇼뮈죠
꼼미싸레 아 레네르기 아토미크
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/563—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on boron carbide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/583—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on boron nitride
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B35/645—Pressure sintering
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/24—Selection of substances for use as neutron-absorbing material
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/06—Ceramics; Glasses; Refractories
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Powder Metallurgy (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

본 발명은 중성자 흡수 복합 재료 및 그의 제조 방법에 대한 것이다.
본 발명에 의한 복합 재료는 예를 들어, B4C 또는 BN으로 된 균일한 세라믹 매트리스(1)로 구성되어져 있으며, 상기 매트릭스 내에는, Mo, 몰리브덴 붕화물 및/또는 B4C와 같은 내열성 금속으로 형성되어지고 입자 크기가 100∼500㎛인 검량되거나 비검량된 의사구형 클러스터(pseudospherical clusters) (3)들이 분산되어져 있다.
상기 클러스터들이 존재함으로써, 순수 B4C만으로 된 재료에 비해 개선된 역학적 성질을 얻을 수 있다.

Description

중성자 흡수 복합재료 및 이의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (15)

  1. 세라믹(ceramics) 물질로 구성된 1차 성분의 균일한 매트릭스(matrix)를 포함하고 있으며, 상기 매트릭스 내에는 내열성 금속, 몰리브덴 붕화물 및 B4C 로 이루어진 군에서 선택된 2차 성분을 적어도 하나 포함하고 있는 클러스터들이 균일하게 분포되어 있고, 상기 1차 성분과 2차 성분 중 적어도 하나는 붕소를 포함하고 있음을 특징으로 하는 중성자 흡수 복합 재료.
  2. 제1항에 있허서, 상기 클러스터들은 크기가 100∼500㎛임을 특징으로 하는 중성자 흡수 복합재.
  3. 제1항 또는 제2항에 있어서, 상기 내열성 금속은 몰리브덴(Mo), 하프늄(Hf) 및 지르코늄(Zr)으로 이루어진 군에서 선택된 것임을 특징으로 하는 중성자 흡수 복합 재료.
  4. 제1항 또는 제2항에 있어서, 상기 2차 성분은 내열성 금속 및/또는 몰리브덴 붕화물이고, 클러스터들은 검량된 클러스터이며 상기 2차 성분이 재료 부피의 30%를 차지함을 특징으로 하는 중성자 흡수 복합 재료.
  5. 제4항에 있어서, 상기 세라믹은 탄화 붕소이고, 검량된 클러스터들은 Mo및/또는 몰리브덴 붕화물로 된 클러스터임을 특징으로 하는 중성자 흡수 복합 재료.
  6. 제1항 또는 제2항에 있어서, 상기 클러스터들은 B4C로 되어 있으며 재료 부피의 60∼80%를 차지함을 특징으로 하는 중성자 흡수 복합 재료.
  7. 제1항 또는 제2항에 있어서, 상기 세라믹은 질화붕소이고 클러스터들은 검량된 또는 비검량된 B4C 클러스터들임을 특징으로 하는 중성자 흡수 복합 재료.
  8. 평균 입자 크기가 5㎛이하인 1차 성분 분말을 2차 성분 또는 2차 성분들의 클러스터들과 균일하게 혼합시킨 후에 최종 밀도가 이론상 밀도의 적어도 90%가 될 수 있도록 적절한 온도 및 시간 동안 가압하게 소결(sintering)하여 강화시키는 것으로 구성됨을 특징으로 하는, 제1항에 의한 복합 재료의 제조 방법.
  9. 제8항에 있어서, 상기 2차 성분의 검량된 또는 비검량된 클러스터들은 2차 성분의 미세한 분말을 진공 또는 중성 조건하에서 베이킹(baking)하고 분쇄한 후에 크기가 100∼500㎛인 클러스터들을 선별하여 제조됨을 특징으로 하는 방법.
  10. 제8항 또는 제9항에 있어서, 상기 소결은 열간 일축 압축(hot uniaxial compression)에 의해 실시됨을 특징으로 하는 방법.
  11. 제8항 또는 제9항에 있어서, 상기 소결은 열간 아이소스태틱 압축(hot isostatic compression)에 의해 실시됨을 특징으로 하는 방법.
  12. 제8항 또는 제9항에 있어서, 상기 1차 성분은 B4C이고 상기 2차 성분은 Mo임을 특징으로 하는 방법.
  13. 제8항 또는 제9항에 있어서, 상기 1차 성분은 BN이고 상기 2차 성분은 B4C임을 특징으로 하는 방법.
  14. 제12항에 있어서, 상기 소결 압력은 20∼200mpa이고 소결 온도는 800∼2,200℃이며 소결 시간은 15∼60분임을 특징으로 하는 방법.
  15. 제13항에 있어서, 상기 소결 압력은 20∼200mpa이고, 소결 온도는 1,800∼2,200℃이며 소결시간은 15~60분임을 특징으로 하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940033158A 1993-12-10 1994-12-07 중성자 흡수 복합재료 및 이의 제조방법 KR100329471B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9314873A FR2713818B1 (fr) 1993-12-10 1993-12-10 Matériau composite absorbant les neutrons et son procédé de fabrication.
FR9314873 1993-12-10

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KR950017849A true KR950017849A (ko) 1995-07-20
KR100329471B1 KR100329471B1 (ko) 2002-08-13

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US (1) US5772922A (ko)
EP (1) EP0657402B1 (ko)
JP (1) JPH07209466A (ko)
KR (1) KR100329471B1 (ko)
DE (1) DE69412977T2 (ko)
ES (1) ES2123111T3 (ko)
FR (1) FR2713818B1 (ko)
RU (1) RU94043808A (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101123392B1 (ko) * 2009-08-19 2012-03-23 한국세라믹기술원 초음파를 이용한 고밀도 탄화붕소 소결체의 제조방법
KR101123391B1 (ko) * 2009-08-19 2012-03-23 한국세라믹기술원 고밀도 탄화붕소 소결체의 제조방법

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3069519B2 (ja) * 1996-02-21 2000-07-24 核燃料サイクル開発機構 高性能中性子吸収材料
JP6197264B2 (ja) * 2012-02-16 2017-09-20 日立化成株式会社 中性子吸収材およびその製造方法ならびに溶融燃料の処理方法
KR101637509B1 (ko) 2014-12-31 2016-07-08 한국생산기술연구원 가돌리늄을 함유한 철합금의 제조 방법

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GB1106291A (en) * 1963-11-25 1968-03-13 Nat Res Dev Boron-containing materials
FR1530462A (fr) * 1967-03-24 1968-06-28 Commissariat Energie Atomique Procédé de fabrication de produits graphitiques absorbant les neutrons et produits conformes à ceux obtenus par application du procédé
GB1283159A (en) * 1970-05-21 1972-07-26 Atomic Energy Authority Uk Improvements in neutron absorbers
US4027377A (en) * 1975-06-25 1977-06-07 Brooks & Perkins, Incorporated Production of neutron shielding material
DE2752040C3 (de) * 1977-11-22 1981-10-08 Elektroschmelzwerk Kempten GmbH, 8000 München Neutronenabsorberplatten auf Grundlage von Borcarbid und Kohlenstoff und Verfahren zu ihrer Herstellung
US4213883A (en) * 1977-12-30 1980-07-22 The Carborundum Company Method for manufacture of neutron absorbing articles
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DE3403257A1 (de) * 1984-01-31 1985-08-01 Elektroschmelzwerk Kempten GmbH, 8000 München Neutronenabsorberplatten mit keramischer bindung auf basis borcarbid und freiem kohlenstoff
US5242622A (en) * 1988-09-15 1993-09-07 Compagnie Europeenne Du Zirconium Cezus Process for the production of a neutron absorbing pellet, the pellet obtained and the use thereof
FR2646007B1 (fr) * 1989-04-18 1994-04-01 Tecphy Procede de realisation d'un produit d'absorption du rayonnement neutronique, produit ainsi realise et ses applications
US5156804A (en) * 1990-10-01 1992-10-20 Thermal Technology, Inc. High neutron-absorbing refractory compositions of matter and methods for their manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101123392B1 (ko) * 2009-08-19 2012-03-23 한국세라믹기술원 초음파를 이용한 고밀도 탄화붕소 소결체의 제조방법
KR101123391B1 (ko) * 2009-08-19 2012-03-23 한국세라믹기술원 고밀도 탄화붕소 소결체의 제조방법

Also Published As

Publication number Publication date
FR2713818B1 (fr) 1996-01-12
EP0657402A1 (fr) 1995-06-14
US5772922A (en) 1998-06-30
KR100329471B1 (ko) 2002-08-13
ES2123111T3 (es) 1999-01-01
RU94043808A (ru) 1996-10-20
JPH07209466A (ja) 1995-08-11
DE69412977T2 (de) 1999-04-08
EP0657402B1 (fr) 1998-09-02
DE69412977D1 (de) 1998-10-08
FR2713818A1 (fr) 1995-06-16

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