Highly heat-resistant inorganic fiber bonded ceramic component and process for the production thereof

• Main Authors: MATSUNAGA KENJI, KAJII SHINIJ, SATO MITSUHIKO, HOGAMI TOSHIHIKO
• Format: Patent
• Language: English
• Published: 12.02.2004
• Edition: 7
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; REFRACTORIES; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE

Production processes of an inorganic fiber-bonded ceramic component comprising inorganic fibers mainly comprising Si, M, C and O, an inorganic substance mainly comprising Si and O and boundary layers comprising carbon as a main component; and an inorganic fiber-bonded ceramic component comprising inorganic fibers which are composed mainly of a sintered structure of SiC and contain specific metal atoms and boundary layers composed mainly of carbon, wherein a preliminary shaped material is set in a carbon die, covered with a carbon powder and then hot-pressed to load a pseudo-isotropic pressure on the preliminary shaped material; and a highly heat-resistant inorganic fiber-bonded ceramic component almost free from the occurrence of peelings of surface fibers or delamination, wherein fibers are aligned in a surface shape. The processes allow primary-molding of a highly heat-resistant inorganic fiber-bonded ceramics having excellent heat resistance and smoothness and high fracture resistance in a shape similar to a component shape.