Abstract:
A heat pipe apparatus having a sintered lattice wick structure includes a plurality of wicking walls having respective length, width and heights and spaced in parallel to wick liquid in a first direction along the respective lengths, the respective lengths being longer than the respective widths and the respective heights, the plurality of wicking walls being adjacent to one another and spaced apart to form vapor vents between them, a plurality of interconnect wicking walls to wick liquid between adjacent wicking walls in a second direction substantially perpendicular to the first direction, and a vapor chamber encompassing the sintered lattice wick structure, the vapor chamber having an interior condensation surface and interior evaporator surface, wherein the plurality of wicking walls and the plurality of interconnect wicking walls are configured to wick liquid in first and second directions and the vapor vents communicate vapor in a direction orthogonal to the first and second directions.
Abstract:
Disclosed are: a copper metal film which has good adhesion to a substrate, low volume resistivity, and good deep-part metal properties; and a method for producing a copper metal film, wherein the copper metal film can be produced by reducing a substrate to a deep part thereof without damaging the substrate. Specifically disclosed is a copper metal film obtained by treating a copper-based particle deposition layer containing both copper oxides and a metallic transition metal or alloy, or a transition metal complex containing a metal element, with gaseous formic acid and/or formaldehyde heated to 120° C. or higher. The copper oxide is preferably copper (I) oxide and/or copper (II) oxide. The transition metal, alloy or metal complex are preferably a metal selected from the group consisting of Cu, Pd, Pt, Ni, Ag, Au and Rh, an alloy containing the metal, or a complex containing the metal element, respectively.
Abstract:
A method of producing a multi-microchannel, flow-through element, including the steps of providing a body of material, and producing multiple microchannels within the body, wherein the microchannels extend through the body to produce a multi-microchannel, flow-through element. Such an element can be used as a micromixer, a sensor element, a filter, a fuel element or a chromatographic element.
Abstract:
A method of producing a multi-microchannel, flow-through element, including the steps of providing a body of material, and producing multiple microchannels within the body, wherein the microchannels extend through the body to produce a multi-microchannel, flow-through element. Such an element can be used as a micromixer, a sensor element, a filter, a fuel element or a chromatographic element.
Abstract:
A powder metallurgical molding forms an interconnector or an end plate for an electrochemical cell. The molding has a chromium content of at least 80% by weight, a basic shape of a plate and one or more flow fields with structuring formed on one or both of the main faces of the molding. A ratio of a maximum diameter Dmax of the molding, measured along the main face, to a minimum thickness dmin of a core region of the molding which extends along the flow field or fields and is not affected by the structuring lies in a range of 140≦Dmax/dmin≦350.
Abstract translation:粉末冶金模制形成用于电化学电池的互连器或端板。 该成型体具有至少80重量%的铬含量,板的基本形状和在成型体的一个或两个主面上形成的结构化的一个或多个流场。 沿着主面测量的模制品的最大直径Dmax与沿着流场或场延伸并且不受结构化影响的模制品的芯区域的最小厚度dmin的比率在140< 1E ; Dmax / dmin≦̸ 350。
Abstract:
In a finish heat treatment method and finish heat treatment apparatus for an iron powder, a raw iron powder is placed on a continuous moving hearth and continuously charged into the apparatus. In the pretreatment zone, the raw iron powder is subjected to a pretreatment of heating the raw iron powder in an atmosphere of hydrogen gas and/or inert gas at 450 to 1100° C. In decarburization, deoxidation, and denitrification zones, the pretreated iron powder is subsequently subjected to at least two treatments of decarburization, deoxidation, and denitrification. In the pretreatment zone, a hydrogen gas and/or an inert gas serving as a pretreatment ambient gas is introduced separately from an ambient gas used in the at least two treatments is introduced from the upstream side of the pretreatment zone and released from the downstream side so as to flow in the same direction as a moving direction of the moving hearth.
Abstract:
Methods are provided for producing alloy forms from alloys containing one or more extremely reactive elements and for fabricating a component therefrom. The fabricating method comprises substantially removing a reactive gas from the fabrication environment. An alloy form of the alloy is formed. The alloy form is formed by melting the alloy or by melting one or more base elements of the alloy to produce a molten liquid and introducing the one or more extremely reactive elements into the molten liquid. The molten alloy is shaped into the alloy form. The component is formed from the alloy form. If the one or more extremely reactive elements are introduced into the molten liquid, such introduction occurs just prior to the shaping step.
Abstract:
A method of making a molybdenum or molybdenum alloy metal strip is disclosed. The method includes roll compacting a molybdenum-based powder into a green strip. The method also includes sintering the green strip followed by a combination of warm rolling, annealing, and cold rolling steps to form the final metal strip which may be cut-to-length. The strip at the final thickness may also undergo an optional stress relief step.
Abstract:
Provided are a powder for a magnet, which provides a rare-earth magnet having excellent magnet properties and which has excellent formability, a method for producing the powder for a magnet, a powder compact, a rare-earth-iron-based alloy material, and a rare-earth-iron-nitrogen-based alloy material which are used as materials for the magnet, and methods for producing the powder compact and these alloy materials.
Abstract:
There is provided a method for the manufacture of a multilevel metal part, the method comprising the steps of: a) compacting agglomerated spherical metal powder to a green multilevel preform such that an open porosity exists, wherein the green multilevel preform fulfils the relation zg=zHVC·a, b) debinding the green preform, c) sintering the green preform in an atmosphere comprising hydrogen d) compacting the green preform with high velocity compaction to a density of at least 95% TD, e) subjecting the part to densification to a density of at least 99 % TD. There is further provided a multilevel metal part. Advantages of the method include that it is possible to manufacture a multilevel part which is essentially uniform throughout the entire part and which has excellent tolerance, which at the same time has virtually full density and thereby having excellent mechanical properties as well as excellent corrosion properties.