CERAMIC COMPOSITE MATERIAL

• Main Authors: NAGAI TORU, ITO WATARU, DONOMAE HITOSHI, YAMADA NORIKO, SAKON TADASHI
• Format: Patent
• Language: English
• Published: 10.04.2001
• Edition: 7
• Subjects: ARTIFICIAL STONE; BASIC ELECTRIC ELEMENTS; CABLES; CEMENTS; CERAMICS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; COMPOUNDS THEREOF; CONCRETE; CONDUCTORS; ELECTRICITY; INORGANIC CHEMISTRY; INSULATORS; LIME, MAGNESIA; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REFRACTORIES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SEPARATION; SLAG; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF NATURAL STONE

PROBLEM TO BE SOLVED: To obtain a ceramic composite material having a capacity of selectively transporting oxygen in air or an oxygen-containing mixed gas. SOLUTION: This ceramic composite material is obtained by forming a covering layer and a sealed hole part consisting of a compact porous material mixed conductive oxide in which molar ratio of each of the component elements is expressed by the following formula and contains strontium, iron and cobalt as main components on one surface of an oxide porous material consisting mainly of magnesium, also forming a porous material surface layer containing magnesia and a catalyst, magnesia and a mixed conductive oxide, or magnesia, the mixed conductive oxide and the catalyst on the surface layer of the above oxide porous material, further forming the above covering layer and the sealed hole part on its surface, or further imparting a catalyst on the surface of the above covering layer and the sealed hole part or imparting and closely adhering the porous material surface layer or the porous material mixed conductive oxide imparted with the catalyst optionally. Sr:Fe:Co=4:x:y (where; 3.5<=x<=5.0, 1.0<=y<=2.5).