Abstract: Process for the preparation of a catalytic specie consisting essentially of a metallic support, which is coated with a ceramic active phase layer, mainly compound of the general formula (I): [RhxNiyMglAlm(OH)2]z+(An?z/n) kH2O.

Abstract: A method for manufacturing ceramic foam, including impregnating polymer foam having an open porosity with a first suspension of ceramic particles in a solvent; drying the impregnated polymer foam; heat treating the dried polymer foam by thermally decomposing the dried polymer foam; unbinding the organic compounds contained in the polymer foam, and pre-sintering the ceramic particles contained in the polymer foam; impregnating the polymer foam with a second suspension of ceramic particles in a solvent; drying the polymer foam, sintering the ceramic particles contained in the polymer foam.

Abstract: Chemical combination (C) between an active solid phase which is covalently bound to the surface of an inert solid phase, characterized in that said solid active phase essentially consists in a solid solution of a mixture of at least a magnesium oxide type phase compound and at least a magnesium silicate type phase compound in which Al, and Rh and/or Ni cations are soluted and characterized in that said inert solid phase is either a compound represented by the general formula (I): AlaNibRhcMgdSieOf??(I) wherein a, b, c, d, and e are integers which are greater than or equal to 0, f is an integer greater than 0, the sum a+b+c+d?0, and wherein (3a+2b+3c+2d+4e)/2=f, or a mixture of compounds represented by the said general formula (I), provided that at least one of the Si, Al, Mg, Rh or Ni elements, which is present in the solid active phase, is also present in the solid inert phase. Use of a catalyst in chemical reactions involving the conversion of hydrocarbonaceous feedstocks.

Abstract: Process for the preparation of a catalytic specie consisting essentially of a metallic support, which is coated with a ceramic active phase layer, mainly compound of the general formula (I): [RhxNiyMglAlm(OH)2]z+(An?z/n)kH2O,??(I) wherein An? is mainly a silicate or a polysilicate anion; 0?x?0.3; 0?y?0.9; 0?l?0.9; 0?m?0.5; 0?k?10; x+y>0; 0.5?y+l?0.9; x+y+l+m=1; and z is the total electrical charge of the cationic element or a compound of the general formula (II): [AzA?1-z][B1-x-yNixRhy]O3-???(II) wherein A and A? are different and are selected from the Lanthanide or the Actinide families or from the group IIa of the Mendeleev's periodical table of elements; B is selected from the transition metal groups of columns IIIb, IVb, Vb, VIb, VIIb, Ib and IIb and group VIIIb of the Mendeleev's periodical table of elements; 0?x?0.7, 0?y?0.5, 0?x+y?0.

Abstract: Container having a lining structure, comprising a crystalline phase containing 55 to 97 wt % of xonotlite crystallites and 3 to 45 wt % of tobermorite crystallites and comprising less than 15 wt % of intermediates of formula CaxSiyOz.wH2O where 1<x<16, 1<y<24, 4<z<60 and 1<w<18, including less than 5 wt % of CaCO3, and less than 5 wt % of SiO2 and in that said lining structure is homogeneous, characterized in that said container has a discontinuous or continuous lateral clearance between the internal surface of the metal shell thereof and the external surface of the lining structure.

Abstract: A composite material (M) comprising: at least 75% by volume of a mixed electronic conductor compound oxygen anions O<2->(C1) selected from doped ceramic compounds which, at the temperature of use, are present in the form of a crystalline network having ion oxide lattice vacancies and, more particularly, in the form of a cubic phase, a fluorite phase, a perovskite phase, of the aurivillius variety, a Brown-Millerite phase or a pyrochlore phase; and 0.01%-25% by volume of a compound (C2) which is different from compound (C1), selected from oxide-type ceramic materials, non-oxide type ceramic materials, metals, metal alloys or mixtures of said different types of material; and 0%-2.5% by volume of a compound (C3) produced from at least one chemical reaction represented by the equation: xFC1+yFC2----->zFC3, wherein FC1, FC2 and FC3 represent the raw formulae of compounds (C1), (C2) and (C3) and x, y and z represent rational numbers above or equal to 0.

Abstract: The invention relates to a method for producing a packing structure, characterized in that it includes the following steps: a) a step in which the temperature of an initial mixture of quicklime and silica is raised to a temperature T1 of between 150 and 300° C. over a period of less than 10 hours; b) a step in which hydrothermal synthesis is performed using the mixture of quicklime and silica produced in step (a) at a temperature T1 of between 150 and 300° C. and at a pressure P1 of between 5×105 Pa and 25×105 Pa over a period t1 of between 10 and 70 hours; c) a step in which the mixture produced in step (b) is cooled from temperature T1 to ambient temperature over a period of between 1 and 48 hours at a cooling rate ?TR1 of between 3 and 200° C./hour; and d) a step in which the mixture produced in step (c) is dried.

Abstract: An optical frequency comb generator includes a laser device arranged for generating input laser light having a predetermined input light frequency, a dielectric micro-resonator having a cavity exhibiting a third order nonlinearity, so that the micro-resonator is capable of optical parametric generation providing parametrically generated light, and a waveguide optically coupled to the micro-resonator, the waveguide being arranged for in-coupling the input laser light into the micro-resonator and out-coupling the parametrically generated light out of the micro-resonator, wherein the laser device, the waveguide and the micro-resonator being arranged for resonantly in-coupling the laser input light to a mode of the micro-resonator with a minimum power level so that an optical field inside the cavity exceeds a predetermined cascaded parametric oscillation threshold at which the parametrically generated light includes frequencies of frequency sidebands of the input light frequency and of the sidebands thereof.

Abstract: The present invention relates to a packing structure for containers, characterized in that it comprises a material of xonotlite and/or tobermorite and/or foshagite crystal structure crystallized in the form of needles, at least 50% by volume of which have a length ranging from 2 to 10 ?m and a thickness ranging from 0.2 to 1 ?m. Process for manufacturing such a packing structure and gas container containing it.

Abstract: A composite material (M) comprising: at least 75% by volume of a mixed electronic conductor compound oxygen anions O<2->(C1) selected from doped ceramic compounds which, at the temperature of use, are present in the form of a crystalline network having ion oxide lattice vacancies and, more particularly, in the form of a cubic phase, a fluorite phase, a perovskite phase, of the aurivillius variety, a Brown-Millerite phase or a pyrochlore phase; and 0.01%-25% by volume of a compound (C2) which is different from compound (C1), selected from oxide-type ceramic materials, non-oxide type ceramic materials, metals, metal alloys or mixtures of said different types of material; and 0%-2.5% by volume of a compound (C3) produced from at least one chemical reaction represented by the equation: xFC1+yFC2 - - - >zFC3, wherein FC1, FC2 and FC3 represent the raw formulae of compounds (C1), (C2) and (C3) and x, y and z represent rational numbers above or equal to 0.

Abstract: Chemical combination (C) between an active solid phase which is covalently bound to the surface of an inert solid phase, characterized in that said solid active phase essentially consists in a solid solution of a mixture of at least a magnesium oxide type phase compound and at least a magnesium silicate type phase compound in which Al, and Rh and/or Ni cations are soluted and characterized in that said inert solid phase is either a compound represented by the general formula (I): AlaNibRhcMgdSieOf??(I) wherein a, b, c, d, and e are integers which are greater than or equal to 0, f is an integer greater than 0, the sum a+b+c+d?0, and wherein (3a+2b+3c+2d+4e)/2=f, or a mixture of compounds represented by the said general formula (I), provided that at least one of the Si, Al, Mg, Rh or Ni elements, which is present in the solid active phase, is also present in the solid inert phase. Use of a catalyst in chemical reactions involving the conversion of hydrocarbonaceous feedstocks.

Abstract: The invention relates to a method for producing a packing structure, characterized in that it includes the following main steps: a) a step comprising the hydrothermal synthesis of the packing mass, performed using a mixture of quicklime and silica; and b) a step comprising the drying of the packing mass produced in step (a) at a temperature T2 of between 110° C. and 500° C., possibly with at least one intermediate stage performed at a temperature of between 111° C. and 350° C. over a period t2 selected such that the physisorbed water content of the packing mass is less than 0.5%.

Abstract: Architecture comprising ceramic or metallic foam, characterized in that the foam has a constant axial and radial porosity between 10 to 90% with a pore size between 2 to 60 ppi, and at least one continuous and/or discontinuous, axial and/or radial concentration of catalytic active(s) phase(s) from 0.01 wt % to 100 wt %, preferentially from 0.1 to 20 wt. %, and in that the architecture has a microstructure comprising specific area ranging between 0.1 to 30 m2/g, a grain size between 100 nm and 20 microns and a skeleton densification above 95%.

Abstract: An architecture made of a ceramic or a metallic foam has at least one continuous and/or discontinuous, axial and/or radial porosity gradient ranging from 10 to 90% associated to a pore size range from 2 to 60 ppi, at least one continuous and/or discontinuous, axial and/or radial concentration gradient of catalytic active(s) phase(s) from 0.01 wt % to 100 wt % preferentially from 0.1 wt % to 20 wt %, and a microstructure with a specific area ranging between 0.1 to 30 m2/g, a grain size between 100 nm and 20 microns and a skeleton densification above 95%.

Abstract: The present invention relates to a container packing structure, characterized in that it comprises a crystalline phase containing 55 to 97% by weight of xonotlite crystallites and 3 to 45% by weight of tobermorite crystallites. It also relates to a method for fabricating such a packing structure, and the container containing same, and its use for storing fluids such as gases.

Abstract: The invention relates to an architecture comprising ceramic or metallic foam, characterized in that the foam has at least one continuous and/or discontinuous, axial and/or radial porosity gradient ranging from 10 to 90%, and a pore size from 2 ppi to 60 ppi, and in that the architecture has a micro structure comprising specific area ranging between 0.1 to 30 m2/g, a grain size between 100 nm and 20 microns and a skeleton densification above 95%. One process to obtain this architecture can be based on the preparation of a ceramic foam with porosity gradient comprising: choosing at least one polymeric sponge, impregnation of the polymeric sponge by a ceramic slurry, drying of the impregnated sponge, pyrolysing the organics including the polymeric sponge, and sintering, and characterized in that we realize a pre-step to obtain a continuous and/or discontinuous porosity gradient.

Abstract: Process for the preparation of a catalytic specie consisting essentially of a metallic support, which is coated with a ceramic active phase layer, mainly compound of the general formula (I): [RhxNiyMglAlm(OH)2]z+(An?z/n)kH2O,??(I) wherein An? is mainly a silicate or a polysilicate anion; 0?x?0.3; 0?y?0.9; 0?l?0.9; 0?m?0.5; 0?k?10; x+y>0; 0.5?y+l?0.9; x+y+l+m=1; and z is the total electrical charge of the cationic element or a compound of the general formula (II): [AzA?1-z][B1-x-yNixRhy]O3-???(II) wherein A and A? are different and are selected from the Lanthanide or the Actinide families or from the group IIa of the Mendeleev's periodical table of elements; B is selected from the transition metal groups of columns IIIb, IVb, Vb, VIb, VIIb, Ib and IIb and group VIIIb of the Mendeleev's periodical table of elements; 0?x?0.7, 0?y?0.5, 0?x+y?0.

Abstract: An oxygen generator is controlled to producing oxygen during a period t at a pressure P2 higher than P1, or during a period t? with a flow rate D2 higher than D1, optionally with a pressure P2 higher than P1.

Abstract: The present invention relates to a container packing structure, characterized in that it comprises a crystalline phase containing 55 to 97% by weight of xonotlite crystallites and 3 to 45% by weight of tobermorite crystallites. It also relates to a method for fabricating such a packing structure, and the container containing same, and its use for storing fluids such as gases.

Abstract: A catalytic composition comprising a catalytically active metal and a solid support, characterized in that a proportion of said catalytically active metal is dispersed on the outer surface of said support and another proportion is included into the core structure of said solid support, and said solid support is a refractory and ionic conductive oxide.