| 摘要 |
PURPOSE:To enable industrial production of formed products which can stand sufficiently elevated temperature and whose temperature can be raised in a relatively rapid rate by firing a preform obtained from an inorganic short-cut fibers suspending organosilicon polymer solution in an organic solvent. CONSTITUTION:An organosilicon polymer is dissolved in an organic solvent and inorganic short-cut fibers are suspended in the solution. The suspension is cast on a support or poured into a mold. The preform from which at least a part of the solvent is removed is fired in an inert atmosphere to give a ceramic formed product for electric resistance heating elements which is mainly composed 20 to 90divided by t.% of silicon carbide in which inorganic short-cut fibers are uniformly dispersed. The inorganic short-cut fibers are, for example, silicon carbide whiskers, potassium titanate whiskers, silicon nitride whiskers or the like. The organosilicon polymer is particularly preferably a polycarbosilane styrene copolymer. |
