Abstract:
A shingle insert and method for eliminating and preventing growths on a shingled roof in which copper strips forming the inserts are installed with an upper edge disposed beneath a course of shingles with the remaining portions of the insert exposed. The insert strips have a confined space defined beneath a stiffening lengthwise extending arched hump formed in the exposed copper strip portions which has an array of elongated indentations formed therein with slits therein to allow slow drainage of water impounded by the arched hump through the inserts may contain a growth toxic material, in solid or granular form which releases a substance toxic to the growths when rainwater runoff passes into the confined space and over the material and thereafter flows out down the roof.
Abstract:
The method serves for producing network-like metal mats from metallic strip material, for which purpose the strip material is first provided with notches (2), running parallel to one another, for the forming of metal wires (1), by means of notching rollers. The notches (2) are thereby formed to such depths, depending on the material, that as far as possible no sliding fractures are formed. The notches (2) are interrupted by unnotched regions - the mutual spacing of which in the respective notch (2) determines the later possible mesh width - at least in such a way that they later form network nodes (4). The network nodes (4) are offset by approximately half a network node spacing in the respectively adjacent notches (2). Then, the strip, formed in this manner, is subjected to a flexing process, in which the webs (3) adjoining the base of the notch and still connecting the metal wires (1) to one another undergo multiple bending deformation about the longitudinal axis thereof in such a way that incipient cracks occur as a result of fatigue fracture. This leads to the complete separation of the metal wires (1) in the region of the webs (3), while no incipient cracks form at the network nodes (4). Finally, the strip material is subjected to transverse tensile forces acting on both its peripheral metal wires (1), whereby a widening deformation of the wire strip (5) into a network-like structure takes place. The invention also relates to an apparatus for carrying out the method and to a metal mat produced by said method.
Abstract:
Methods for fabricating integrated circuit electrical interconnects and electrical interconnects are provided. Methods include providing a substrate having a surface, the surface having a feature formed therein wherein the feature is a trench or via, depositing a metal layer, the metal of the metal layer being selected from the group consisting of Ru, Co, Pt, Ir, Pd, Re, and Rh, onto surfaces of the feature, depositing a copper seed layer wherein the copper seed layer comprises a dopant and the dopant is selected from the group consisting of Mn, Mg, MgB 2 . P, B, Al, Co and combinations thereof, onto the metal layer, and depositing copper into the feature. Devices comprising copper interconnects having metal liner layers are provided. Devices having liner layers comprising ruthenium are provided.
Abstract:
A bi-metallic component including a first member of a first metal and a second member of a second metal different than the first metal. The first member includes at least one perforation. The second member is directly cast-in-place about a sheet-like portion of the first member and through the perforation to rigidly secure the first and second members. When used in an automotive vehicle, the second metal of the second member is preferably of aluminum and the first metal of the first member is preferably a high strength steel for spot welding to other steel structures.
Abstract:
A hand wrappable heat shield and method of construction thereof has outer and inner layers of metal embossed with peaks and valleys. An intermediate layer of insulation material is sandwiched between the outer and inner layers of metal. The peaks embossed in the outer layer are offset relative to the peaks embossed in the inner layer.
Abstract:
L'invention concerne une pièce (11) en matériau composite formé à base de résine thermodurcissable, qui inclut des moyens de protection contre la foudre comportant, sur une surface supérieure (12) de la pièce (11) susceptible d'être exposée à des impacts de foudre, une couche continue d'une feuille métallique (1) présentant des perforations (2) selon un taux de perforation compris entre 0,005%et 20 %.
Abstract:
Methods are disclosed to enable the production of cost-effective, machinable, high thermal conductivity metal/diamond metal matrix composite compound structures. The use of compound pre-forms made from porous machinable carbonaceous material and including voids filled with diamond particles, enables precise and low-cost production of devices for thermal management systems for high-performance electronic heat sources. Production methods are disclosed for making compound diamond pre-forms without the need for binders or cementation. Multimodal particle distributions within the diamond pre-form may be employed advantageously to improve the thermal conductivity of the resultant metal matrix composite compound structure. Additional methods for production of multiple MMC devices from a single compound pre-form are also disclosed.