ES349638A1 - Neutron-Protection Material - Google Patents

Neutron-Protection Material

Info

Publication number
ES349638A1
ES349638A1 ES349638A ES349638A ES349638A1 ES 349638 A1 ES349638 A1 ES 349638A1 ES 349638 A ES349638 A ES 349638A ES 349638 A ES349638 A ES 349638A ES 349638 A1 ES349638 A1 ES 349638A1
Authority
ES
Spain
Prior art keywords
lime
neutron
protection material
magnesia
crucible
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
Application number
ES349638A
Other languages
Spanish (es)
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of ES349638A1 publication Critical patent/ES349638A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/22—Glass ; Devitrified glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/14—Silica-free oxide glass compositions containing boron
    • C03C3/145—Silica-free oxide glass compositions containing boron containing aluminium or beryllium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Glass Compositions (AREA)
  • Disintegrating Or Milling (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

A neutron absorbing shield is formed of boric anhydride with alumina and lime, or silica and lime, or magnesia and lime. The material may be used as a space-filling powder or an an aggregate in a concrete. When used as a protection against fast neutrons a neutron moderator is added, for example, a ground rock containing hydrogen. A vitreous form is prepared by fusing the mixture in a crucible and grinding the cooled mass. The materials used have a softening point above 500 C. and are thus suitable for fast reactors, their thermal expansion is compatible with hydraulic binders and they have a low solubility.
ES349638A 1967-01-24 1968-01-23 Neutron-Protection Material Expired ES349638A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR92359A FR1524110A (en) 1967-01-24 1967-01-24 Neutron shielding material

Publications (1)

Publication Number Publication Date
ES349638A1 true ES349638A1 (en) 1969-10-01

Family

ID=8624313

Family Applications (1)

Application Number Title Priority Date Filing Date
ES349638A Expired ES349638A1 (en) 1967-01-24 1968-01-23 Neutron-Protection Material

Country Status (7)

Country Link
BE (1) BE708627A (en)
CH (1) CH507571A (en)
DE (1) DE1621711B1 (en)
ES (1) ES349638A1 (en)
FR (1) FR1524110A (en)
GB (1) GB1169851A (en)
LU (1) LU55284A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5416098A (en) * 1976-05-12 1979-02-06 Nippon Asbestos Co Ltd Neutron shielding heat insulator
US4115700A (en) * 1977-04-04 1978-09-19 Combustion Engineering, Inc. High density fuel storage racks
US4303553A (en) 1978-09-28 1981-12-01 Nippon Asbestos Co., Ltd. Neutron-protection heat insulating material
CN111403070A (en) * 2020-03-18 2020-07-10 张云逢 Radiation protective composition and high radioactive nuclear waste metal container

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD26267A (en) *
FR1201635A (en) * 1958-07-07 1960-01-04 Commissariat Energie Atomique Improvements to protective screens against radiation of nuclear origin

Also Published As

Publication number Publication date
GB1169851A (en) 1969-11-05
BE708627A (en) 1968-05-02
FR1524110A (en) 1968-05-10
LU55284A1 (en) 1968-03-28
DE1621711B1 (en) 1971-12-30
CH507571A (en) 1971-05-15

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