ES2092987T3 - Cuerpos absorbentes de neutrones policristalinos sinterizados que comprenden oxidos de tierras raras lantanidos y los mismos estabilizados frente al agua con un oxido de metal del grupo 4a. - Google Patents

Cuerpos absorbentes de neutrones policristalinos sinterizados que comprenden oxidos de tierras raras lantanidos y los mismos estabilizados frente al agua con un oxido de metal del grupo 4a.

Info

Publication number
ES2092987T3
ES2092987T3 ES89101107T ES89101107T ES2092987T3 ES 2092987 T3 ES2092987 T3 ES 2092987T3 ES 89101107 T ES89101107 T ES 89101107T ES 89101107 T ES89101107 T ES 89101107T ES 2092987 T3 ES2092987 T3 ES 2092987T3
Authority
ES
Spain
Prior art keywords
group
oxide
metal oxide
lantanides
rare earth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES89101107T
Other languages
English (en)
Inventor
Diemen Paul Van
Kenneth Wilbur Lay
Richard Allan Proebstle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/260,211 external-priority patent/US4992225A/en
Application filed by General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of ES2092987T3 publication Critical patent/ES2092987T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C04B35/50—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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Powder Metallurgy (AREA)
  • Ceramic Products (AREA)

Abstract

UN OXIDO LANTANIDO SELECCIONADO DE UN GRUPO QUE CONSISTE EN OXIDO DIPROSIO, OXIDO ERBIO, OXIDO EUROPIO, OXIDO GASOLIO Y OXIDO SAMARIO ES FORMADO DENTRO DE UN COMPACTO Y AGLOMERADO PARA PRODUCIR UN CUERPO UTIL COMO MATERIAL DE CONTROL EN UN AGUA ENFRIADA POR UN REACTOR NUCLEAR. EL OXIDO DE LANTANIDO ES COMBINADO PREFERIBLEMENTE CON UN GRUPO ESTABILIZADOR DE CORROSION, GRUPO DE OXIDO METALICO 4A COMO UN AXIDO DE HAFNIO.
ES89101107T 1988-10-19 1989-01-23 Cuerpos absorbentes de neutrones policristalinos sinterizados que comprenden oxidos de tierras raras lantanidos y los mismos estabilizados frente al agua con un oxido de metal del grupo 4a. Expired - Lifetime ES2092987T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/260,211 US4992225A (en) 1988-02-03 1988-10-19 Water corrosion-resistant ceramic oxide body

Publications (1)

Publication Number Publication Date
ES2092987T3 true ES2092987T3 (es) 1996-12-16

Family

ID=22988233

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89101107T Expired - Lifetime ES2092987T3 (es) 1988-10-19 1989-01-23 Cuerpos absorbentes de neutrones policristalinos sinterizados que comprenden oxidos de tierras raras lantanidos y los mismos estabilizados frente al agua con un oxido de metal del grupo 4a.

Country Status (3)

Country Link
EP (1) EP0364650B1 (es)
DE (1) DE68927319T2 (es)
ES (1) ES2092987T3 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2667590A1 (fr) * 1990-10-05 1992-04-10 Rhone Poulenc Chimie Corps en ceramique a base de terres rares et procede de fabrication de ceux-ci.
RU2124240C1 (ru) * 1996-12-03 1998-12-27 Государственный научный центр Научно-исследовательского института атомных реакторов Поглотитель нейтронов для ядерных реакторов
FR2773636B1 (fr) 1998-01-13 2000-02-18 Commissariat Energie Atomique Materiau absorbant neutronique composite et procede de fabrication de ce materiau
ITTO20090313A1 (it) * 2009-04-21 2010-10-22 Univ Parma Contrappeso per il bilanciamento di un corpo rotante o per appesantire un corpo, e suo procedimento di fabbricazione
FR3045199B1 (fr) * 2015-12-15 2018-01-26 Areva Np Grappe absorbante et crayon absorbant pour reacteur nucleaire
CN106282713B (zh) * 2016-09-14 2018-06-19 厦门大学 一种核反应堆灰控制棒用钼基氧化镝材料及其应用
CN106381433B (zh) * 2016-09-14 2018-07-10 厦门大学 一种核反应堆灰控制棒用钼基氧化铥材料及其应用
RU2679822C2 (ru) * 2016-12-19 2019-02-13 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" Способ получения порошка гафната диспрозия для поглощающих элементов ядерного реактора
CN114044672B (zh) * 2021-11-02 2023-04-11 中广核研究院有限公司 控制棒吸收体材料及其制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB874882A (en) * 1959-06-05 1961-08-10 Standard Telephones Cables Ltd Thermistors
US3634113A (en) * 1968-10-30 1972-01-11 Larry L Fehrenbacher Stabilized zirconium dioxide and hafnium dioxide compositions
US3849248A (en) * 1969-02-14 1974-11-19 Gen Electric Samarium compensation for nuclear reactor fuel
DE2637227C3 (de) * 1976-08-18 1979-02-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Heißleiter für hohe Temperaturen
JPS5572891A (en) * 1978-11-29 1980-06-02 Hitachi Ltd Reactor core structure
JPS5679993A (en) * 1979-12-05 1981-06-30 Nippon Atomic Ind Group Co Nuclear reactor control rod
JPS5690292A (en) * 1979-12-24 1981-07-22 Nippon Atomic Ind Group Co Nuclear reactor control rod

Also Published As

Publication number Publication date
DE68927319D1 (de) 1996-11-14
DE68927319T2 (de) 1997-04-03
EP0364650B1 (en) 1996-10-09
EP0364650A1 (en) 1990-04-25

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