GB946568A - Improvements in or relating to processes for manufacturing neutron-absorbent materials, and the materials produced thereby - Google Patents

Improvements in or relating to processes for manufacturing neutron-absorbent materials, and the materials produced thereby

Info

Publication number
GB946568A
GB946568A GB1922560A GB1922560A GB946568A GB 946568 A GB946568 A GB 946568A GB 1922560 A GB1922560 A GB 1922560A GB 1922560 A GB1922560 A GB 1922560A GB 946568 A GB946568 A GB 946568A
Authority
GB
United Kingdom
Prior art keywords
materials
relating
processes
solution
produced
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
GB1922560A
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.)
Mersen SA
Original Assignee
Carbone Lorraine SA
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 FR796644A external-priority patent/FR1236101A/en
Application filed by Carbone Lorraine SA filed Critical Carbone Lorraine SA
Publication of GB946568A publication Critical patent/GB946568A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Ceramic Products (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Porous graphite is impregnated with sodium pentaborate from a solution or melt, is stoved at a temperature of 220-250 DEG C. after coating with a plastic to prevent exudation, and is finally heated in carbon powder after removal of the coating. The product may contain 2% of boron. The process may be repeated to produce a 5% content. According to the example a block of graphite having a porosity of 26% is immersed in a solution at a pressure of 10 kg./cm.2 and a temperature of 90-100 DEG C. for a few minutes, is removed from the solution after cooling, and is then stoved and baked.
GB1922560A 1959-06-05 1960-05-31 Improvements in or relating to processes for manufacturing neutron-absorbent materials, and the materials produced thereby Expired GB946568A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR796644A FR1236101A (en) 1959-06-05 1959-06-05 Manufacturing process of neutron retarding materials
FR823415 1960-04-05

Publications (1)

Publication Number Publication Date
GB946568A true GB946568A (en) 1964-01-15

Family

ID=26184082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1922560A Expired GB946568A (en) 1959-06-05 1960-05-31 Improvements in or relating to processes for manufacturing neutron-absorbent materials, and the materials produced thereby

Country Status (1)

Country Link
GB (1) GB946568A (en)

Similar Documents

Publication Publication Date Title
CH448529A (en) Process for the production of fine porous plastics
GB876924A (en) Improvements in or relating to the production of shaped carbon bodies
GB946568A (en) Improvements in or relating to processes for manufacturing neutron-absorbent materials, and the materials produced thereby
AT247393B (en) Process for the production of dense, little porous or pore-free iron powder from sponge iron
AT238691B (en) Process for the production of precisely dimensioned carbon or graphite molded bodies made up of fibers
DE3461514D1 (en) Method of manufacturing highly porous bodies from inorganic material which may be used for preparing hygroscopic, inflammable or radioactive articles
CH381697A (en) Process for the production of new condensation products
CH342515A (en) Process for the production of carbon and graphite shaped bodies
GB777187A (en) Process for the production of porous bodies from polyethylene
GB792844A (en) Improvements in or relating to the manufacture of ceramic ware
GB873438A (en) Improvements in or relating to production of graphite
GB843300A (en) Improvements in or relating to moulding apparatus, the manufacture of such apparatusand moulding processes
GB635796A (en) The impregnation of porous articles with carbon
GB810509A (en) Improvements in or relating to the production of impregnated porous bodies
GB725053A (en) Production of impermeable bodies of graphite
FR1245974A (en) Process for treating porous carbon articles
GB755046A (en) Improvements in silicon carbide articles and the method of manufacturing same
CH395552A (en) Process for the production of carbon electrodes
GB992815A (en) Production of reconstituted mica articles
GB972686A (en) A process for producing a sintered metallic article
GB1024971A (en) Process for the production of formed bodies from carbonaceous material
GB836064A (en) Improvements in or relating to processes for improving the mechanical properties andscaling resistance of sintered bodies
GB804688A (en) Improvements in or relating to dynamo electric machines
FR76223E (en) Process for the production of porous or non-porous metallic masses by non-thermal sintering
CH445360A (en) Process for the production of an acid-resistant ceramic material that is resistant to temperature changes