METHOD FOR MANUFACTURING LAMINATE-TYPE CERAMIC-BASED CERAMIC-TEXTILE COMPOSITE MATERIAL

• Main Author: TANIMOTO TOSHIO
• Format: Patent
• Language: English
• Published: 29.05.2014
• Subjects: ARMOUR; ARMOURED OR ARMED VEHICLES; ARMOURED TURRETS; BLASTING; HEATING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To provide a method for manufacturing a low-cost laminate-type ceramic-based ceramic-textile composite material light in weight and excellent in terms of impact resistance and fracture toughness.SOLUTION: A ceramic textile 11 consisting at least of any of woven fabrics, fabrics of knitted structures, and fabrics of braided structures and having specified dimensions is provided, and after a prepreg intermediate 10a has been prepared by impregnating the ceramic textile with a slurry of a matrix-filling ceramic with which an auxiliary agent having a glass composition playing the role of a sintering additive yielding a sintering temperature equal to or lower than the thermal deterioration temperature of continuous ceramic fibers has been mixed, the obtained prepreg intermediate is dispensed into a vacuum defoamer, and after the volume of bubbles enclosed therein has been controlled by adjusting the vacuum magnitude and defoaming time, the intermediate is dried so as to prepare a prepreg 10 of a continuous ceramic fiber-reinforced green ceramic, and multiple members of such prepregs are laminated along arbitrary directions, compressed, and sintered so as to composite and integrate the multiple prepregs.