Abstract: An apparatus (1) for manufacturing a three-dimensional object from particulate material, the apparatus comprising: a work space (100) bounded by a first side wall (100A) on a first side of the work space, and a second side wall (100B) on a second side of the work space, the first side wall opposing the second side wall; a build bed (170) having a build bed surface (160), the build bed surface being comprised in the floor of the work space and having a first edge (160?) on the first side of the work space, towards the first side wall, and a second edge (160?) on the second side of the work space, towards the second side wall; a first gas inlet (101A) at or near the first side wall; a second gas inlet (101B) at or near the second side wall; a first gas outlet (102A) above the floor (100C) of the work space, the position of the first gas outlet being coincident with the first edge of the build bed surface, or between the first edge of the build bed surface and the first gas inlet; and a second gas outlet (102B)

Abstract: A strip product consists of a metallic substrate, such as stainless steel, and a coating, which in turn comprises at least one metallic layer and one reactive layer. The coated strip product is produced by providing the different layers, preferably by coating, and thereafter oxidizing the coating to accomplish a conductive surface layer comprising perovskite and/or spinel structure.

Abstract: A strip product consists of a metallic substrate, such as stainless steel, and a coating, which in turn comprises at least one metallic layer and one reactive layer. The coated strip product is produced by providing the different layers, preferably by coating, and thereafter oxidizing the coating to accomplish a conductive surface layer comprising perovskite and/or spinel structure.

Abstract: The present invention provides a method of producing a multilayer barrier structure in a solid oxide cell stack, comprising the steps of: —providing a metal interconnect; —applying a first metal oxide layer on said metal interconnect; —applying a second metal oxide layer on top of said first metal oxide layer; —applying a third metal oxide layer on top of said second metal oxide layer; —forming a solid oxide cell stack comprising said metal interconnect having said metal oxide layers thereon; and —reacting the metal oxide in said first metal oxide layer with the metal of said metal interconnect during the SOC-stack initialization, and a solid oxide stack comprising an anode contact layer and support structure, an anode layer, an electrolyte layer, a cathode layer, a cathode contact layer, a metallic interconnect, and a multilayer barrier structure which is obtainable by the above method and through an initialization step, which is carried out under controlled conditions for atmosphere composition and current

Abstract: A strip product consists of a metallic substrate, such as stainless steel, and a coating, which in turn comprises at least one metallic layer and one reactive layer. The coated strip product is produced by providing the different layers, preferably by coating, and thereafter oxidizing the coating to accomplish a conductive surface layer comprising perovskite and/or spinel structure.

Abstract: A process for the conditioning of and applying a ceramic or other layer onto the surface of a sheet of stainless steel comprises the steps of (a) optionally annealing the steel plate or sheet in a protective gas atmosphere at an elevated temperature, (b) controlled etching of the surface of the sheet to produce a roughened surface and (c) depositing a protective and electrically conductive layer onto the roughened metallic surface. The process leads to coated metallic sheets with desirable properties, primarily to be used as interconnects in solid oxide fuel cells and solid oxide electrolysis cells.

Abstract: A unit for use in a fuel cell stack, the unit comprising a porous metal support with a seal made by local fusion and—having a seal depth that extends from the upper surface of the porous metal support to at least the bottom surface of the porous metal support, and wherein the seal is positioned along the periphery of the porous metal support, the seal being impermeable to gas transported in the plane of the porous metal support.

Abstract: The invention relates to a electrically conductive steel-ceramic connection comprising a steel interconnector and an electrically conductive ceramic joining layer arranged thereon. The interconnector comprises a ferritic steel containing Cr in a quantity ranging from 18 to 24% by weight. The ceramic layer contains perovskite of a formula Ln1-xSrxMn1-yCoyO3-? or Ln1-xSrxFe1-yCoyO3-?, wherein 0.1?x?0.4, 0.1?y?0.6, 0???x/2 and Ln=La—Lu. The inventive steel-ceramic connection is usable for a high-temperature fuel cell and regularly exhibits good adhesive properties and a low transition resistance (initial transition resistance R approximately equal to 0.01 ?cm2). Said steel-ceramic connection makes it possible to advantageously introduce a ferritic steel into high-temperature fuel cells. The inventive method for producing said steel-ceramic connection consists in pre-treating an inserted ceramic powder exhibiting good sinterability during an assembly process and during the fuel cell operation.

Abstract: A unit for use in a fuel cell stack, the unit comprising a porous metal support with a seal made by local fusion and—having a seal depth that extends from the upper surface of the porous metal support to at least the bottom surface of the porous metal support, and wherein the seal is positioned along the periphery of the porous metal support, the seal being impermeable to gas transported in the plane of the porous metal support.

Abstract: A unit for use in a fuel cell stack, the unit comprising a porous metal support with a seal made by local fusion and-having a seal depth that extends from the upper surface of the porous metal support to at least the bottom surface of the porous metal support, and wherein the seal is positioned along the periphery of the porous metal support, the seal being impermeable to gas transported in the plane of the porous metal support.

Abstract: The present invention provides a method of producing a multilayer barrier structure in a solid oxide cell stack, comprising the steps of: -providing a metal interconnect; -applying a first metal oxide layer on said metal interconnect; -applying a second metal oxide layer on top of said first metal oxide layer; -applying a third metal oxide layer on top of said second metal oxide layer; -forming a solid oxide cell stack comprising said metal interconnect having said metal oxide layers thereon; and -reacting the metal oxide in said first metal oxide layer with the metal of said metal interconnect during the SOC-stack initialisation, and a solid oxide stack comprising an anode contact layer and support structure, an anode layer, an electrolyte layer, a cathode layer, a cathode contact layer, a metallic interconnect, and a multilayer barrier structure which is obtainable by the above method and through an initialisation step, which is carried out under controlled conditions for atmosphere composition and current

Abstract: The present disclosure relates to a ferritic chromium stainless steel with the following composition in percent by weight: C max 0.1, Si 0.1-1, Mn max 0.6, Cr 20-25, Ni max 2, Mo 0.5-2, Nb 0.3-1.5, Ti max 0.5, Zr max 0.5, REM max 0.3, Al max 0.1, N max 0.07 balance Fe and normally occurring impurities, and wherein the content of Zr+Ti is at least 0.2%. The ferritic chromium stainless steel is suitable for use in fuel cells, especially Solid Oxide Fuel Cells.

Abstract: A software application includes a window having at least first and second panels. The first panel is programmed to provide access to Internet-based sources of information. The software application also includes a user-operable selection tool programmed to select non-structured information from an Internet-based source of information presented in the first panel. The software application also includes a menu responsive to the selection tool that is programmed to appear upon the selection of non-structured information, display a plurality of data types to which the selected non-structured information can be assigned, and receive a user-selection of one of the plurality of data types to which the selected non-structured information is to be assigned. The second panel is programmed to, upon selection of one of the plurality of data types, display the selected non-structured data and indicate to which of the plurality of data types the selected information was assigned.

Abstract: A unit for use in a fuel cell stack, the unit comprising a porous metal support with a seal made by local fusion and-having a seal depth that extends from the upper surface of the porous metal support to at least the bottom surface of the porous metal support, and wherein the seal is positioned along the periphery of the porous metal support, the seal being impermeable to gas transported in the plane of the porous metal support.

Abstract: A strip product consists of a metallic substrate, such as stainless steel, and a coating, which in turn comprises at least one metallic layer and one reactive layer. The coated strip product is produced by providing the different layers, preferably by coating, and thereafter oxidizing the coating to accomplish a conductive surface layer comprising perovskite and/or spinel structure.

Abstract: A fuel cell component, such as an interconnect for solid oxide fuel cells, consists of a metallic substrate, such as stainless steel, and a coating, which in turn comprises at least one metallic layer and one reactive layer. The fuel cell component is produced by providing the different layers, preferably by coating, and thereafter oxidising to accomplish a conductive surface layer comprising a complex metal oxide structure.

Abstract: Process for the preparation of a solid oxide fuel cell comprising chemically etching a metallic sheet covered with a photoresist and obtaining controlled patterns of cavities on one side of the metallic sheet and perforations on the other side of the metallic sheet and depositing electrochemically active segments on the perforated side of the metallic sheet. The invention includes also a solid oxide fuel cell prepared by the above process.

Abstract: The invention relates to a electrically conductive steel-ceramic connection comprising a steel interconnector and an electrically conductive ceramic joining layer arranged thereon. The interconnector comprises a ferritic steel containing Cr in a quantity ranging from 18 to 24% by weight. The ceramic layer contains perovskite of a formula Ln1-xSrxMn1-yCoyO3-? or Ln1-xSrxFe1-yCOyO3-?, wherein 0.1?x?0.4, 0.1?y?0.6, 0???x/2 and Ln=La—Lu. The inventive steel-ceramic connection is usable for a high-temperature fuel cell and regularly exhibits good adhesive properties and a low transition resistance (initial transition resistance R approximately equal to 0.01 ?cm2). Said steel-ceramic connection makes it possible to advantageously introduce a ferritic steel into high-temperature fuel cells. The inventive method for producing said steel-ceramic connection consists in pre-treating an inserted ceramic powder exhibiting good sinterability during an assembly process and during the fuel cell operation.

Abstract: Solid oxide fuel cell with a planar support in form of a porous plate structure supporting on one planar surface a layer of electrode active material and with internally elongated gas supply channels formed inside the structure.

Abstract: Method for the removal of particulate matter from aqueous suspension comprising steps of establishing value of pH and of Zeta potential of particles in the suspension; providing a porous filter having a membrane layer consisting of at least a metal-oxide with a Zeta potential at the pH value of the suspension having same polarity of the Zeta potential as the particles in the suspension; passing the suspension through the porous filter; and withdrawing a filtrate.