F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
F16L59/00—Thermal insulation in general
F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
F16L59/028—Compositions for or methods of fixing a thermally insulating material
Procede de fabrication de structures carbonisables, a partir de fibres carbonees pre-oxydees (polyacrylonitrile, en particulier) et les structures ainsi obtenues
Procédé de fabrication d'un barreau isolant en nitrure de bore principalement utilisé dans des éléments chauffants protégés, et barreau ainsi obtenu