Saint-gobain Centre De Recherches Et D'etudes Europeen

Saint-gobain Ceramics & Plastics, Inc.

Caroline Levy

Samuel Marlin

Yves Boussant-Roux

Yeshwanth Narendar

Guangyong Lin

John D Pietras

Aravind Mohanram

Arnaud Apheceixborde

Qiang Zhao

Robert J Sliwoski

Michael Mahoney

The present invention provides a fused product comprising LTM perovskite, L designating lanthanum, T being an element selected from strontium, calcium, magnesium, barium, yttrium, ytterbium, cerium, and mixtures of these elements, and M designating manganese.

Method of fabricating an LTM perovskite product

A fused product including lithium-manganese spinel, which is optionally doped, having a spinel structure ABO, where the site A is occupied by lithium and the site B is occupied by manganese, it being possible for the site B to be doped with an element B' and it being possible for the site A to exert a substoichiometry or a superstoichiometry with respect to the site B, so that the product observes the formula LiMnB&#x2032;O, with &#x2212;0.20&#x2266;x&#x2266;0.4 and 0&#x2266;y&#x2266;1, the element B&#x2032; being chosen from aluminum, cobalt, nickel, chromium, iron, magnesium, titanium, vanadium, copper, zinc, gallium, calcium, niobium, yttrium, barium, silicon, boron, zirconium and their mixtures.

Method for the production of an LMO product

A method for manufacturing a molten material (the crystallized portion of which consists of a single crystalline phase), includes a) mixing raw materials so as to form a feedstock; b) melting the feedstock until a liquid mass reaches a temperature higher than the melting temperature Tf of the molten material obtained at the end of step e); c) cooling until the liquid mass is completely solidified to obtain a molten material, the amorphous phase of which is constitutes less than 80 wt % thereof; d) optionally crushing/grinding and/or performing selection by particle size on the molten material; e) optionally, heat-treating the molten material at a temperature which is an increment lower than the melting temperature of the molten material and is between Tf&#x2212;800&#xb0; C. (or 500&#xb0; C.) and Tf&#x2212;50&#xb0; C., for a period of time in a reducing environment; and f) optionally, crushing/grinding and/or performing selection by particle size on said molten material.

Method for producing a fused product

The present invention relates to a powder of molten grains of yttria-stabilized zirconia, said grains having the following chemical analysis, in weight percent on the basis of the oxides:

Fused powder of yttria-stabilised zirconia

A bonding layer, disposed between an interconnect layer and an electrode layer of a solid oxide fuel cell article, may be formed from a yttria stabilized zirconia (YSZ) powder having a monomodal particle size distribution (PSD) with a dthat is greater than about 1 &#x3bc;m and a dthat is greater than about 2 &#x3bc;m.

Solid oxide fuel cell interconnect cells

The present invention provides a powder constituted by a set of grains, characterized in that the 10 percentile of the cumulative granulometric distribution of the grain sizes, commencing from the fines, D, is 4 &#x3bc;m or more, at least 40% by number of the grains having a form factor R between the length and the width of more than 1.5.

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Montpellier, France

Caroline Levy