Thermally-insulating components made of thermally-stabilized refractory ceramic fibers

摘要

The invention relates to a refractory thermally-insulating component consisting essentially of refractory ceramic fibers which are mechanically combined with one another, the composition of which comprises at least 97.5% by weight of alumina, silica and zirconia in total, wherein: a) no organic or inorganic binder binds the fibers to one another; b) the fibers have the following chemical composition, as % by weight: Al2O3: 33-45% SiO2: 41-53% ZrO2: 5.5-17% MgO: 0.02-2% other oxides:<0.50% with Fe2O3+TiO2