Abstract: A method for applying a zinc layer onto an aluminum or aluminum alloy sheet, comprising pretreating the surface and applying the layer by electrolytic galvanizing, the pretreating comprises electrochemical graining of the surface, for example in a solution having a pH less than 3 with an alternating current applied between the sheet and an electrode. In an alternative method, the pretreating includes applying a preliminary zinc layer by immersing the surface in a zinc-containing alkaline solution, applying a potential to the sheet and reversing the polarity of said potential at least once. The sheets are useful for building cladding sheets and automotive panels.

Abstract: A furnace component having a tungsten-based substrate whose surface is protected by a rhenium-based layer in order to render the component less reactive to quartz, glass and other forms of silica. The layer preferably consists essentially of rhenium or rhenium with alloying additions of tungsten. The substrate may be formed of concentric layers of different tungsten-based alloys in order to tailor the physical and mechanical properties of the component. A preferred method of forming the rhenium layer is to wrap the substrate with a rhenium-based wire, and then heat the wire and substrate to sinter and bond the wire to the substrate. Alternatively, the substrate and rhenium layer can be formed by isostatic pressing. Both methods are performed so that the substrate and layer have densities of at least about 96% of their respective theoretical densities.

Abstract: The present invention provides a metallic article with at least one laser shock peened surface on at least a portion of the article and a plurality of volumetrically spaced apart laser shock peened protrusions extending into the article from said laser shock peened surface wherein the protrusions have deep compressive residual stresses imparted by laser shock peening (LSP). The invention may be further characterized by spaced apart circular laser beam spots on the surface from which the laser shock peened protrusions extend into the article such that the spots do not overlap.

Abstract: A method of on site application of an erosion resistant coating. When deposited on the surface of a metallic substrate, the coating comprises hard ferroboride phases bound with a ductile metallic phase. The ductile metallic phase is selected from metals which have a low affinity for oxygen. The preparation and composition of a cored wire adapted for use in application of the erosion resistant coatings are also disclosed.

Abstract: A medium-P/high-P type Ni--P plating coating, the hardness of which can be furthermore enhanced by heat treating, is used for plating on the surface of a sliding member. However, its wear resistance does not arrive at the desired level. In addition, although the P content of the conventional Ni--P--B electroless plating coating is lower than that of Ni--P electroless plating coating, P considerably disordered the crystallinity of Ni crystals and hence impaired the sliding characteristics. There is provided as a Ni--P--B electroless plating coating, which can eliminate the above described problems, a plating coating containing from 0.05 to 5% by weight of P and from 0.01 to 0.05% by weight of B. Furthermore, barrel polishing, shot blasting, laser-beam irradiation, high-frequency induction heating and the like are applied to the plating coating.

Abstract: In a method of manufacturing a sheet member comprising: obtaining a sintered compact by sintering a sheet-like compact having a reduced-thickness portion and an enlarged-thickness portion; and then repressing the sintered compact into a sheet member, a difference in density between the reduced-thickness portion and the enlarged-thickness portion of the sintered compact after repressing is adjusted to be in a range of .+-.1.5%. By doing so, the accuracy of flatness is enhanced and the amount of distortion, which would otherwise remain in the sheet member, is reduced because the sheet member is formed by sintering the sheet-like compact. In addition, the deformation caused by heating is greatly restricted. Accordingly, the prospect of the sheet member of the present invention is bright as a heat dissipating plate.

Abstract: A bond coat and method of forming a bond coat for a thermal barrier coating system are set forth. The bond coat is a roughened bond coat and comprises a layer possessing an uneven, undulated, and irregular surface. The layer is formed of a metal powder mixture disposed on a substrate, such as a turbine component, by high velocity oxygen fuel spraying. The metal powder mixture comprises at least one of a first powder having a first melting point and a second powder having a second melting point that is higher than the first melting point. The bond coat's uneven, undulated, and irregular surface enhances prevention of de-bonding of elements in a thermal barrier coating system.

Abstract: An improved fabric for use in applications such as furniture upholstery is provided which possesses desirable flexibility, cleanability, and fluid resistant properties. The fabric includes a textile substrate treated with a fluorochemical stain resist agent. The treated textile substrate is covered substantially on the back with a layer of extrusion coated thermoplastic polymer which is pressed at least partially into the fabric substrate. A process for forming the fluid shield fabric according to the present invention is also provided. Preferably, the fabric is comprised of solution dyed nylon and the polymeric material is ethylene methyl acrylate polymer.

Abstract: The present invention provides a molding media and method of producing resin stabilized polymeric fiber mats useful as thermal and acoustical insulation. The molding media and method of the invention lower the cost of producing such mats while still maintaining the necessary mechanical and acoustical properties. One embodiment of the molding media and method of the invention further provides environmental advantages over glass fiber and foam mats.

Abstract: A zinciferous coated steel sheet comprises a steel sheet, a zinciferous coating layer formed on the steel sheet, a Fe--Ni--Zn--O film formed on the zinciferous coating layer, and an oxide layer formed on a surface portion of the Fe--Ni--Zn--O film. The method comprises providing an electrolyte of an acidic sulfate aqueous solution, carrying out an electrolysis treatment in the electrolyte under a current density ranging from 1 to 150 A/dm.sup.2, and carrying out an oxidation treatment to a surface of the zinciferous coated steel sheet.

Abstract: This invention relates to flash spinning copolymers which provide softness and quietness to nonwoven sheet structures formed of plexifilamentary film-fibril material. In particular, flash spinning polyethylene with an ethylene copolymer provides a substantial improvement in softness and quietness.

Abstract: Polymer foam articles having a substantially smooth surface prepared by melt-mixing a polymer composition and a plurality of microspheres, at least one of which is an expandable polymeric microsphere, under process conditions, including temperature and shear rate, selected to form an expandable extrudable composition; and extruding the composition through a die.

Abstract: The invention relates to a method for manufacturing a micromachined structure to be at least partly released from a substrate surface. A surface contact area, over which structure and the said substrate surface are in surface contact with each other during the manufacturing step, is divided into at least a first and a second contact zone, the adhesiveness between the structure and the substrate being greater in the first contact zone than in the second contact zone. As a manufacturing step, or as a step subsequent to the manufacturing, the structure can be released from the substrate surface at least over said second contact zone. The completed structure may also be completely loose from the substrate. The invention is also directed to a micromachined structure manufactured according to the method.

Abstract: A metallic porous product is produced by applying a slurry of a mixture of skeleton constituent metal particles and property modifying particles to an inflammable porous foam, burning the inflammable porous foam having open pores by heat to provide a metallic skeleton structure, and sintering the metallic skeleton structure.

Abstract: A laminated composite material, and a method of improving the surface hardness of laminated composite materials, wherein selected regions of the carrier material of the laminated composite system are treated with high-energy beams, and the temperature control is designed in such a manner that the rays penetrate into a maximum a 0.1-fold the entire thickness of the carrier material. The temperature increase in the region of the sliding material is a maximum of 80% of the melting temperature of the lowest melting constituent of said material. The laminated composite material with a rear steel substrate surface can be post-hardened. The steel substrate has at least in one part of the surface facing away from the function layer a level of hardness increased by a factor of 1.5 or more than at a depth which corresponds substantially to 0.1-fold of the thickness of the steel substrate.

Abstract: A reinforced substrate for use in at least one of two substrates forming a flat panel display together with a display generating material filled between the two substrates, has a reinforcing structure for preventing bending of a substrate installed on one surface of the substrate. According to one embodiment, the reinforcing structure includes an array of hollow polygonal pillars formed of transparent glass or plastic. According to another embodiment, the reinforcing structure is made of transparent glass or plastic, and further includes an electrically conductive film which is coated on one end surface of the hollow polygonal pillars and is then grounded to block electromagnetic waves generated inside the flat panel display. According to a still another embodiment, the reinforcing structure is made of conductive metal, and one end of the array of hollow polygonal pillars is grounded to block electromagnetic waves generated inside the flat panel display.

Abstract: A flat structure made of foil or sheet metal to be used as a heat shield, for example in motor vehicles in order to insulate the muffler against heat. The flat structure comprises at least one layer and is divided into a plurality of flat regions. Some of the flat regions are non-deformed and smooth and other flat regions are shaped from the plane of the non-deformed flat regions.

Abstract: A wear-resistant coated member comprising 26 to 80% by weight of silicon (Si), additional components if required and necessary, the remainder being aluminum (Al), and unavoidable impurities, wherein Si is in a fine particle, and has an average particle size in the range of 0.01 to less than 10 .mu.m, and Al matrix and 3% by weight or more of Si form solid solutions. The wear-resistant coated member has excellent wear resistance and machinability.

Abstract: A brake unit includes a brake disk made of a fiber-reinforced ceramic C/SiC composite and a brake lining tribologically interacting with this brake disk. The brake lining comprises the same material as the brake disk, in which case, at least in the area of the brake lining close to the surface, the hardness is lower than that of the brake disk. The brake unit exhibits a high stability to temperature while the wear is low and the service life is acceptable.

Abstract: Tank treads, brake linings, rifles stocks, and other devices requiring the bonding of metal to rubber, epoxy, or plastic, with a layer of metal foam interposed between the metal and the rubber or plastic.