Commissariat a L'energie Atomique

Comptoir Lyon-alemand Louyot

Roger Lacroix

Pierre Bergez

Claude Lambert

Pierre Plurien

Jean-Paul Touboul

Manfred Wacker

Element for detecting the presence of combustible gases in a gaseous atmosphere containing at least one oxidizing agent, comprising a microporous support consisting essentially of a mixture of gamma-and/or eta-alumina and refractory fibres, a catalyst layer based on a metal or an oxide of a metal from the family of the platinoids, located on at least a part of the surface of the microporous support, and a filament based on platinum, of which at least a part is wound round the said support.

Element for detecting the presence of combustible gases in a gaseous

A method of processing porous metal filters used for separating isotopes of uranium hexafluoride, so as to improve the mechanical strength and resistance to corrosion of the fiters. The filters are placed in the presence of an aluminum-based cement in a closed heat-resistant and oxidation-resistant vessel, the interior of the vessel is disposed in a inert gas atmosphere and the vessel is heated to between 800.degree. and 1,000.degree. C in a furnace for about 1 hour. The filters are used for separating uranium isotopes.

Method of processing porous metal filters

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Suresnes, France

Roger Lacroix