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1. WO2013013677 - A METHOD FOR THE DENSIFICATION OF CERAMIC LAYERS, ESPECIALLY CERAMIC LAYERS WITHIN SOLID OXIDE CELL (SOC) TECHNOLOGY, AND PRODUCTS OBTAINED BY THE METHOD

Publication Number WO/2013/013677
Publication Date 31.01.2013
International Application No. PCT/DK2012/050275
International Filing Date 20.07.2012
Chapter 2 Demand Filed 17.05.2013
IPC
C04B 41/89 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
80of only ceramics
81Coating or impregnating
89for obtaining at least two superposed coatings having different compositions
C04B 41/91 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
80of only ceramics
91involving the removal of part of the materials of the treated articles, e.g. etching
H01M 8/12 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
12operating at high temperature, e.g. with stabilised ZrO2 electrolyte
CPC
C04B 2111/00853
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2111Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
00474Uses not provided for elsewhere in C04B2111/00
00853in electrochemical cells or batteries, e.g. fuel cells
C04B 41/0072
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
0072Heat treatment
C04B 41/009
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
009characterised by the material treated
C04B 41/4582
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
45Coating or impregnating
4582Porous coatings, e.g. coating containing porous fillers
C04B 41/52
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
45Coating or impregnating
52Multiple coating or impregnating ; multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
C04B 41/5353
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
53involving the removal of at least part of the materials of the treated article, ; e.g. etching, drying of hardened concrete
5338Etching
5353Wet etching, e.g. with etchants dissolved in organic solvents
Applicants
  • DANMARKS TEKNISKE UNIVERSITET [DK]/[DK] (AllExceptUS)
  • ESPOSITO, Vincenzo [IT]/[SE] (UsOnly)
Inventors
  • ESPOSITO, Vincenzo
Agents
  • PLOUGMANN & VINGTOFT
Priority Data
PA 2011 0056222.07.2011DK
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A METHOD FOR THE DENSIFICATION OF CERAMIC LAYERS, ESPECIALLY CERAMIC LAYERS WITHIN SOLID OXIDE CELL (SOC) TECHNOLOGY, AND PRODUCTS OBTAINED BY THE METHOD
(FR) PROCÉDÉ POUR LA DENSIFICATION DE COUCHES DE CÉRAMIQUE, PLUS PRÉCISÉMENT DE COUCHES DE CÉRAMIQUE POUR LA TECHNOLOGIE DES ÉLÉMENTS À OXYDE SOLIDE (SOC), ET PRODUITS OBTENUS PAR LE PROCÉDÉ
Abstract
(EN)
A ceramic layer, especially for use in solid oxide cell (SOC) technology, is densified in a method comprising (a) providing a multilayer system by depositing the porous ceramic layer, which is to be densified, onto the selected system of ceramic layers on a support, (b) pre-sintering the resulting multilayer system at a temperature T1 to consolidate a sintered, but porous layer, (c) impregnating a solution or suspension of one or more sintering aids directly into the layer to be densified, (d) evaporating the solution or suspension of step (c) to obtain a homogeneous dispersion of the sintering aid(s) in the porous layer surface and (e) performing a thermal treatment at a temperature T2, where T2 > Τ1, to obtain densification of and grain growth in the porous layer formed in step (b). The method makes it possible to obtain dense ceramic layers at temperatures, which are compatible with the other materials present in a ceramic multilayer system.
(FR)
L'invention concerne une couche de céramique, plus précisément destinée à être utilisée pour la technologie des éléments à oxyde solide (SOC), qui est densifiée selon un procédé faisant appel à : (a) la réalisation d'un système multicouche par dépôt de la couche de céramique poreuse, qui doit être densifiée, sur le système choisi de couches de céramique sur un support ; (b) le frittage préalable du système multicouche résultant à une température T1 pour consolider une couche frittée mais poreuse ; (c) l'imprégnation d'une solution ou d'une suspension d'une ou de plusieurs substances favorisant le frittage directement dans la couche à densifier ; (d) l'évaporation de la solution ou suspension de l'étape (c) pour obtenir une dispersion homogène de la ou des substances favorisant le frittage dans la surface de couche poreuse ; et (e) l'exécution d'un traitement thermique à une température T2, où T2 > T1, pour obtenir une densification et une croissance granulométrique dans la couche poreuse formée à l'étape (b). Le procédé rend possible l'obtention de couches de céramique denses à des températures qui sont compatibles avec les autres matériaux présents dans un système multicouche de céramique.
Also published as
Latest bibliographic data on file with the International Bureau