Abstract: A process for the preparation of latent heat storage composites is provided. The process comprises the steps of preparation of an expanded graphite material with a bulk density between 5 and 200 grams/liter which is readily wetted by a liquid phase change material, preparation of a pre-compressed matrix or a packed bed of the expanded graphite material, and manufacture of a latent heat storage composite by infiltration of the matrix or a packed bed with a phase change material in a liquid state.

Abstract: A latent heat storage device including a vessel, a phase change material disposed within the vessel, at least one heat exchange interface in contact with the phase change material, at least one sheet of graphite foil which extends within the bulk of the phase change material.

Abstract: A polymer-bonded fiber agglomerate includes short fibers selected from carbon, ceramic materials, glasses, metals and organic polymers, and a polymeric bonding resin selected from synthetic resins and thermoplastics. The fiber agglomerates have an average length, measured in the fiber direction, of from 3 mm to 50 mm and an average thickness, measured perpendicularly to the fiber direction, of from 0.1 mm to 10 mm. At least 75% of all of the contained fibers have a length which is at least 90% and not more than 110% of the fiber agglomerate average length. A fiber-reinforced composite material having the fiber agglomerate and processes for the production thereof are also provided.

Abstract: In a method of making a body part or chassis part of a motor vehicle, several pre-impregnated fiber materials (prepregs) are stacked on top o one another, with an outermost prepreg intended for attachment to a metallic base body being provided with an adhesive. The stacked prepregs are then shaped into a three-dimensional preform which is then compressed with the base body in a press tool for bonding the preform with the base body and allowing the adhesive to cure, thereby producing a joined structure which is allowed to cure.

Abstract: A support grid for filling material packings includes plate-shaped support strips which extend perpendicularly to an installation plane and are connected in a cruciform manner to spacer strips also extending perpendicularly to the installation plane. Contour strips which are provided with openings and are disposed at an angle and at a distance from one another, are placed in the direction of the spacer strips. The size of the openings as well as the distances are selected in such a way that supported filling material cannot penetrate. The maximum cross-section of the openings amounts to 90 percent. A method for mounting a support grid for filling material packings, is also provided.

Abstract: A process is described for generating hydrogen through the oxidation of fuels that contain chemically bound hydrogen, in particular hydrocarbons, having the following process steps: a) introducing the fuel (1) as well as the oxidation agent (2) into a reactor (3) having a porous material (4?) that is embodied in such a way that flame propagation in a direction opposite the direction of flow is prevented, and b) reacting the fuel with the oxidation agent in partial oxidation so that hydrogen is obtained in gaseous form. In addition, an apparatus for generating hydrogen that has a reactor that contains a porous material (4, 4?), and the reactor (3) is embodied as a tubular reactor that has a central chamber (5) to introduce the fuel and the oxidation agent that extends in the axial direction and is delimited radially toward the outside by a first wall that has porous material (4), and the first wall is delimited radially toward the outside by a second wall that contains the porous material (4?).

Abstract: Clutch lings comprising fiber-reinforced ceramic materials which comprise carbon fibers and whose matrix material is selected from among inorganic polymers, oxidic ceramics, set cements, organoelement polymers and finely divided inorganic solids which are held together by an inorganic or organic binders.

Abstract: Porous carbon fibers, whose active centers are formed by pores that are filled at least in part by carbon and/or metal and/or metal carbide, obtainable by carbonization of organic or inorganic polymers, the use thereof for the adsorption or separation of gaseous substances, in particular of CO2, and also a method for the production thereof. First, a spinning mixture containing polyacrylonitrile-based polymer A and an organic or metallo-organic polymer B is produced. Next, the spinning mixture is spun to form mixed fibers of polymer A and polymer B. The mixed fiber is stabilized by oxidation. This is followed by carbonization or graphitization of the mixed fiber under non-oxidizing conditions in such a way that the polymer B forms a carbon and/or metal and/or metal carbide residue of at least 22 wt %, the residue forming active centers.

Abstract: A method for applying a thin coating to a flat side (front side) and edge surfaces of a two-dimensional formation of graphite foil, includes applying the coating material to the flat side (front side) to be coated by electrostatic powder spraying followed by a sintering cycle or melting cycle. During the spraying, the two-dimensional formation is electrically contacted on a limited area virtually in the middle of its rear side, facing away from the spraying direction, on a limited area at a distance of at least 5 mm from the edges. A method for heat dissipation in electronic equipment, is also provided.

Abstract: The invention relates to a device equipped with a burner for combusting a fuel/oxidant mixture inside a combustion chamber in which a material (3, 3?, 3?, 3??) is provided that endures a maximum temperature. The inventive device also comprises one or more supply lines (25, 26) for the fuel as well as for the oxidant which are provided for supplying the same into the combustion chamber. The inventive device is characterized in that it is designed for carrying out a combustion with a combustion temperature of the fuel/oxidant mixture that exceeds the maximum temperature. The device is designed in such a way that at least one additional supply line (30) is provided via which an additional gas having, in particular, a low calorific value can be supplied to the combustion chamber. Said additional gas enables the temperature during combustion to be lowered to a value that is less than the maximum temperature.

Abstract: A cooling device is in the form of a refrigerator or a point-of-sale display cabinet that is open on one side and is used to store and present perishable goods. The device is fitted with a unit for lowering the interior temperature in relation to the ambient temperature. The inner wall is constructed in two stages, the outer layer consisting of a thermal insulation layer having a heat conductivity <1 Watt/K, and the inner layer consisting of an at least partially coated mixture consisting of a phase transition material and graphite, which covers at least part of the inner wall and is used as a cold accumulator layer.

Abstract: A method of producing a calibrating body, gage or measuring device, preferably a screw-thread measuring device, at least partially including a C—SiC material constructed of a porous, carbon-containing material with infiltrated liquid Si, includes converting the Si at least partially to SiC by reaction with carbon. The C—SiC material is produced from a C—C material based on carbon felt material produced by pressing monofibers or fiber fragments irregularly entwined with each other. A calibrating body, gage or measuring device, preferably a screw-thread measuring device, is also provided.

Abstract: A method of producing a fiber-reinforced carbide-ceramic component includes producing a carbonaceous article from at least one unidirectional tape by pyrolysis, infiltrating the carbonaceous article with carbide former, and coating the at least one unidirectional tape with a coating material being volatile in pyrolysis and/or providing the at least one unidirectional tape with a transverse thread system including transverse threads composed of a material being volatile in pyrolysis. A fiber-reinforced carbide ceramic component is also provided.

Abstract: A hinge apparatus is capable of reliably withstanding a great number of stressor cycles. A layer of an inflectable fiber-reinforced composite material is embedded between two layers of a fiber reinforced composite material of high stiffness. The latter are formed with a separating joint along the line of inflection.

Abstract: A heat exchanger block includes two plates having abutting surfaces with grooves forming passages in which gaseous medium to be cooled flows. Spaces through which a cooling medium flows and which directly adjoin outer surfaces of the plates are provided in the heat exchanger block.

Abstract: An expanded graphite is derived from a graphitic or partially graphitic starting material selected from the group consisting of natural graphite, compressed expanded graphite, partially oxidized graphite and/or graphite fibers having a BET surface area of >30 m2/g. The expanded graphite is obtained by reaction of the starting material with substances capable of intercalation or mixtures of substances capable of intercalation to give a compound designated as an intercalation compound and subsequent expansion in plasma.

Abstract: A process for the production of moldings of compressed expanded graphite includes producing three-dimensional moldings of compressed graphite expandate by bonding together two-dimensional pre-formed pieces of pre-compressed expanded graphite under the influence of pressure to provide single-piece moldings. A process for conducting, exchanging or storing heat using the moldings and a process for producing a heat storage device, are also provided.

Abstract: A support grid for filling material packings includes plate-shaped support strips which extend perpendicularly to an installation plane and are connected in a cruciform manner to spacer strips also extending perpendicularly to the installation plane. Contour strips which are provided with openings and are disposed at an angle and at a distance from one another, are placed in the direction of the spacer strips. The size of the openings as well as the distances are selected in such a way that supported filling material cannot penetrate. The maximum cross-section of the openings amounts to 90 percent. A method for mounting a support grid for filling material packings, is also provided.

Abstract: Cathodes for aluminum electrolysis cells are formed of cathode blocks and current collector bars attached to those blocks. The cathode block has a cathode slot for receiving the collector bar and has a higher depth at a center than at both lateral edges of the cathode block. Additionally, the collector bar thickness is higher at the center than at both lateral edges of the cathode block. This cathode configuration provides a more even current distribution and, thus, a longer useful lifetime of such cathodes and increases cell productivity.

Abstract: A carbon material suitable for the preparation of electrodes for electrochemical capacitors is obtained by single-stage carbonization of biopolymers with a large content of heteroatoms. Neither addition of an activating agent during carbonization nor subsequent gas phase activation is necessary. Several biopolymers which are available by extraction from seaweed are suitable precursors. Alternatively, the seaweed containing such biopolymers is carbonized directly.