KR850006762A - 핵연료 피복관 및 제작방법 - Google Patents

핵연료 피복관 및 제작방법 Download PDF

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Publication number
KR850006762A
KR850006762A KR1019850001653A KR850001653A KR850006762A KR 850006762 A KR850006762 A KR 850006762A KR 1019850001653 A KR1019850001653 A KR 1019850001653A KR 850001653 A KR850001653 A KR 850001653A KR 850006762 A KR850006762 A KR 850006762A
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South Korea
Prior art keywords
cladding tube
nuclear fuel
inner layer
layer
cladding
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KR1019850001653A
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English (en)
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KR920009646B1 (ko
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프랜시스 보일 레이몬드 (외 1)
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지. 엠. 크라크
웨스팅 하우스 일렉트릭 코오포레이숀
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/18—High-melting or refractory metals or alloys based thereon
    • C22F1/186—High-melting or refractory metals or alloys based thereon of zirconium or alloys based thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • 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
    • 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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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

내용 없음

Description

핵연료 피복관 및 제작방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 피복관의 횡 단면도.
제2도는 경수로용 연료요소의 부분 단면 개략도.
제3도는 피복체의 직경방향으로 종 방향 평면을 도시하는 제2도에 도시한 연료 요소의 농축 연료부 확대 단면도.
* 도면의 주요부분에 대한 부호의 설명
1 : 피복체 10 : 외부층
100 : 내부층 230 : 플리넘
400 : 연료 펠릿 420 : 모서리

Claims (11)

  1. 핵연료 요소 피복관에 있어서, 상기 피복관이 동심관상층의 지르코늄 합금으로 이루어지며, 상기 동심관상층이 내부층에 금속적으로 결합된 외부층을 구비하여, 상기 외부층이 고온 및 압력 수용성 환경하에서 야기되는 침식에 대하여 우수한 내성을 갖는 제1지르코늄 합금으로 이루어지며, 상기 내부층이 0.2 내지 0.6wt% 주석 및 0.03내지 0.11wt% 철과 산소가 상기 합금의 350ppm까지 이루는 부수적인 불순물 및 지르코늄으로 나머지를 이루는 제2지르코늄 합금으로 이루어지며, 상기 제1지르크늄합금에 비하여 원자로 운전 조건하에서 균열 진행에 대하여 개선된 내성을 보이는 것을 특징으로 하는 핵연료 피복관.
  2. 제1항에 있어서, 제2지르코늄 합금이 0.4 내지 0.6wt% 주석을 포함하는 것을 특징으로 하는 핵연료 피복관.
  3. 제1항에 또는 제2항에 있어서, 내부층이 완전히 재결정화된 현미경 조직인 것을 특징으로 하는 핵연료 피복관.
  4. 제3항에 있어서, 내부층의 현미경 조직이 내부층 벽두께의 1/10 내지 1/20의 결정체 크기를 갖는 것을 특징으로 하는 피복관.
  5. 제1항, 제2항, 제3항 또는 제4항에 있어서, 내부층이 적어도 0.003인치의 벽두께를 갖는 것을 특징으로 하는 핵연료 피복관.
  6. 제1항 내지 제5항중 어느 한항에 있어서, 제1합금이 지르칼로이 -2, 지르칼로이 -4 및 지르코늄 1내지 3wt%니오뷸 합금으로 부터 선정되는 것을 특징으로 하는 핵연료 피복관.
  7. 제1항 내지 제6항중 어느 한항에 있어서, 제2지르코늄 합금의 산소 함유량이 250ppm이하로 제한되는 것을 특징으로 하는 핵연료 피복관.
  8. 제1항 내지 제7항중 어느 한항에 있어서, 제2지르코늄 합금이 0.03내지 0.06wt%철을 포함하는 것을 특징으로 하는 핵연료 피복관.
  9. 핵연료 요소 피복관을 제작하기 위한 공정에 있어서, 구성 피복관을 중간크기로 형성하는 단계, 상기 중간크기 피복체관의 외부층을 표면 베타 처리하는 단계, 상기 중간크기, 피복관을 일단계로 최종크기로 냉간 가공하는 단계, 상기 구성 피복관을 내부층내에서 미세한 완전 재결정체 크기로 산출 되도록 600℃이하의 온도로 소둔하는 단계로 이루어지는 것을 특징으로 하는 핵연료 피복간 제작방법.
  10. 경수로용 핵연료 요소에 있어서, 연료 물질이 제1항 내지 제8항중 어느 한항에 청구된 구성 피복관내에 밀봉된 원통형의 펠릿으로 이루어지며, 내부층의 외부 주위 표면이 상기 내부층의 전체 외부 외주표면에 걸쳐 외부층의 내부 외주 표면에 결합되며, 상기 제2합금내의 부수적인 불순물의 전체량이 1500ppm이하이며, 상기 펠릿이 가압 불활성 가스로 충진된 구성 피복관내에서 틈을 형성하면서 상기 내부 층의 내경보다 작은 외경을 갖는 것을 특징으로 하는 핵연료 요소.
  11. 제10항에 있어서, 대체로 원통형상의 펠릿이 일단부근처에서 가압 불활성 가스를 수용하는 플리넘 공간을 형성하면서 피복관내에 적재되는 것을 특징으로 하는 핵연료 요소.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임
KR1019850001653A 1984-03-14 1985-03-14 핵연료 피복관 및 제작방법 KR920009646B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/589,390 US4675153A (en) 1984-03-14 1984-03-14 Zirconium alloy fuel cladding resistant to PCI crack propagation
US589390 1984-03-14

Publications (2)

Publication Number Publication Date
KR850006762A true KR850006762A (ko) 1985-10-16
KR920009646B1 KR920009646B1 (ko) 1992-10-22

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KR1019850001653A KR920009646B1 (ko) 1984-03-14 1985-03-14 핵연료 피복관 및 제작방법

Country Status (6)

Country Link
US (1) US4675153A (ko)
EP (1) EP0155168B1 (ko)
JP (1) JPS60211388A (ko)
KR (1) KR920009646B1 (ko)
DE (1) DE3575228D1 (ko)
ES (1) ES8702694A1 (ko)

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FR2579122B1 (fr) * 1985-03-19 1989-06-30 Cezus Co Europ Zirconium Procede de fabrication de tubes-gaines composites pour combustible nucleaire et produits obtenus
US4751045A (en) * 1985-10-22 1988-06-14 Westinghouse Electric Corp. PCI resistant light water reactor fuel cladding
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Also Published As

Publication number Publication date
JPS60211388A (ja) 1985-10-23
EP0155168B1 (en) 1990-01-03
ES541167A0 (es) 1986-12-16
DE3575228D1 (de) 1990-02-08
EP0155168A2 (en) 1985-09-18
EP0155168A3 (en) 1986-10-01
US4675153A (en) 1987-06-23
KR920009646B1 (ko) 1992-10-22
ES8702694A1 (es) 1986-12-16

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