JP2010155241 SILICON CARBIDE FOAM WITH HIGH SPECIFIC SURFACE AREA AND IMPROVED MECHANICAL PROPERTIES

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Application Number 2010033357

Application Date 18.02.2010

Publication Number 2010155241

Publication Date 15.07.2010

Publication Kind A

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Applicants CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
サントル・ナショナル・ドゥ・ラ・ルシェルシュ・シャンティフィク

Inventors PRIN MARIE
プラン，マリ
OLLIVIER BENOIST
オリヴィエ，ブノワ

Agents 太田　恵一

Priority Data 9709743 25.07.1997 FR

Title

(EN) SILICON CARBIDE FOAM WITH HIGH SPECIFIC SURFACE AREA AND IMPROVED MECHANICAL PROPERTIES

(JA) 比表面積が大きく力学特性が向上した炭化珪素フォーム

Abstract

(EN)

PROBLEM TO BE SOLVED: To further ensure the use of SiC foam particularly within a muffler or particularly for the purpose of regeneration thereof by significantly improving the mechanical properties without making the specific surface area or the catalyst properties including a dual porosity mode disadvantageous, while maintaining the permeability of SiC foam medium.

SOLUTION: A silicon carbide foam for use as a catalyst medium is obtained by impregnating an organic foam with a silicon suspension in a resin to which a hardening agent has been added, incomplete cross-linking of the resin, carbonizing the organic foam and the resin, and vaporizing the silicon, which has high specific surface area of at least 5 m2/g and improved mechanical properties including compressive strength of more than 0.2 MPa.

(JA)

【課題】ＳｉＣのフォームの媒体の透過性を維持しながら、とくにその比表面積または二モード多孔性を始めとするその触媒特性を不利となることなくその力学特性を大幅に向上させることによって、とくに消音器内の、あるいは再生処理を目的とした、それらの使用をより確実にする。
【解決手段】硬化剤を添加した樹脂内に珪素を懸濁することで有機フォームを含浸し、樹脂を不完全網状化し、有機フォームと樹脂を炭化し、珪素を気化することによって得られる、少なくとも５ｍ²／ｇの高い比表面積と、０．２ＭＰａを超える圧縮強度を始めとする、向上した力学特性を有する、触媒媒体としての用途のための炭化珪素のフォーム。
【選択図】なし

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35	Catalysts, in general, characterised by their form or physical properties
02	Solids
04	Foraminous structures, sieves, grids, honeycombs

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27	Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
20	Carbon compounds
22	Carbides
224	Silicon carbide

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
32	Catalyst carriers in general

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D	SEPARATION
39	Filtering material for liquid or gaseous fluids
14	Other self-supporting filtering material
20	of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35	Catalysts, in general, characterised by their form or physical properties
02	Solids
04	Foraminous structures, sieves, grids, honeycombs

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1. JP2010155241 - SILICON CARBIDE FOAM WITH HIGH SPECIFIC SURFACE AREA AND IMPROVED MECHANICAL PROPERTIES

C	CHEMISTRY; METALLURGY
04	CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B	LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
38	Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
0022	obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors